← The evidence ledger
Evidence row 58895
Observed , by probe.mcp/1.
- Kind
- mcp.tools
- About
- endpoint 711336a3-734b-45fd-84ed-28936680edd9
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 0ca44141e31e27c1dabddaedb5fb9bf19e6c12a73481afdc1c7b6e13f794034d
- Leaf
- 0xb34f4352ec9687de923b840d549556f23b80c30598c44012c1b5f26abc4b15d1
What was observed
{
"count": 4,
"tools": [
{
"description": "Check US subscription cancellation terms without executing cancellation. Known vendors include review-only and retired scopes: their presence is not automation support. Adobe requires manual contract review. Typeform requires Basic, direct/self-serve platform scope and returns CANCEL_AT_PERIOD_END, not an immediate cancellation or refund. Missing scope, retired sources or unavailable current evidence return UNKNOWN.",
"inputSchema": {
"additionalProperties": false,
"properties": {
"billing_cadence": {
"description": "Required when the vendor applies different cancellation terms to monthly and annual plans.",
"enum": [
"monthly",
"annual"
],
"type": "string"
},
"contract_type": {
"description": "Required for Typeform. Custom and enterprise contracts are not covered.",
"enum": [
"self_serve"
],
"type": "string"
},
"plan": {
"description": "Use 'basic' for Typeform; 'individual' for other supported vendors.",
"enum": [
"individual",
"basic"
],
"type": "string"
},
"product": {
"description": "Required for Typeform. Excludes payments collected from form respondents.",
"enum": [
"platform_subscription"
],
"type": "string"
},
"purchase_channel": {
"description": "Required for Typeform. Third-party purchases are not covered.",
"enum": [
"direct"
],
"type": "string"
},
"region": {
"description": "Region code. Currently only 'US' is supported.",
"enum": [
"US"
],
"type": "string"
},
"requested_action": {
"description": "Required for Typeform. Checks ending renewal at the paid term end; does not execute it.",
"enum": [
"cancel_at_period_end"
],
"type": "string"
},
"vendor": {
"description": "Vendor identifier (lowercase, underscore-separated).",
"enum": [
"1password",
"adobe",
"amazon_music_unlimited",
"amazon_prime",
"amc_plus",
"apple_app_store",
"apple_arcade",
"apple_music",
"apple_tv_plus",
"audible",
"bitwarden",
"britbox",
"bumble",
"calm",
"canva",
"chatgpt_plus",
"claude_pro",
"coursera_plus",
"crunchyroll",
"dashlane",
"deezer",
"discord_nitro",
"discovery_plus",
"disney_plus",
"doordash_dashpass",
"dropbox_us",
"duolingo",
"ea_play",
"espn_plus",
"evernote",
"expressvpn",
"figma",
"fitbit_premium",
"fubo_tv",
"github_pro",
"google_one",
"google_play",
"grammarly",
"headspace",
"hellofresh",
"hinge",
"hulu",
"icloud_plus",
"instacart_plus",
"keeper",
"kindle_unlimited",
"lastpass",
"linkedin_premium",
"masterclass",
"max",
"microsoft_365",
"midjourney",
"mlb_tv",
"myfitnesspal_premium",
"netflix",
"new_york_times",
"nfl_plus",
"nintendo_switch_online",
"noom",
"nordvpn",
"notion",
"paramount_plus",
"patreon",
"peacock",
"peloton",
"playstation_plus",
"proton",
"reddit_premium",
"ring_protect",
"roblox_premium",
"scribd",
"shutterstock",
"siriusxm",
"slack",
"sling_tv",
"snapchat_plus",
"soundcloud_go",
"spotify",
"squarespace",
"starz",
"strava",
"substack",
"surfshark",
"telegram_premium",
"tidal",
"tinder",
"todoist",
"twitch",
"typeform",
"uber_one",
"ubisoft_plus",
"wall_street_journal",
"walmart_plus",
"washington_post",
"weightwatchers",
"wix",
"x_premium",
"xbox_game_pass",
"youtube_premium",
"youtube_tv",
"zoom"
],
"type": "string"
}
},
"required": [
"vendor",
"region",
"plan"
],
"type": "object"
},
"name": "cancellation_penalty"
},
{
"description": "Evaluate a US consumer subscription refund against versioned source-backed rules. Returns UNKNOWN when required conditions are absent or the vendor requires approval or manual policy review.",
"inputSchema": {
"additionalProperties": false,
"properties": {
"days_since_purchase": {
"description": "Number of days since the subscription was purchased.",
"minimum": 0,
"type": "number"
},
"plan": {
"description": "Plan type. Currently only 'individual' plans are supported.",
"enum": [
"individual"
],
"type": "string"
},
"qualifying_conditions_met": {
"description": "Required when the vendor policy has source-specific conditions such as first purchase, unused benefits, or an eligible annual plan.",
"type": "boolean"
},
"region": {
"description": "Region code. Currently only 'US' is supported.",
"enum": [
"US"
],
"type": "string"
},
"vendor": {
"description": "Vendor identifier (lowercase, underscore-separated).",
"enum": [
"1password",
"adobe",
"amazon_music_unlimited",
"amazon_prime",
"amc_plus",
"apple_app_store",
"apple_arcade",
"apple_music",
"apple_tv_plus",
"audible",
"bitwarden",
"britbox",
"bumble",
"calm",
"canva",
"chatgpt_plus",
"claude_pro",
"coursera_plus",
"crunchyroll",
"dashlane",
"deezer",
"discord_nitro",
"discovery_plus",
"disney_plus",
"doordash_dashpass",
"dropbox_us",
"duolingo",
"ea_play",
"espn_plus",
"evernote",
"expressvpn",
"figma",
"fitbit_premium",
"fubo_tv",
"github_pro",
"google_one",
"google_play",
"grammarly",
"headspace",
"hellofresh",
"hinge",
"hulu",
"icloud_plus",
"instacart_plus",
"keeper",
"kindle_unlimited",
"lastpass",
"linkedin_premium",
"masterclass",
"max",
"microsoft_365",
"midjourney",
"mlb_tv",
"myfitnesspal_premium",
"netflix",
"new_york_times",
"nfl_plus",
"nintendo_switch_online",
"noom",
"nordvpn",
"notion",
"paramount_plus",
"patreon",
"peacock",
"peloton",
"playstation_plus",
"proton",
"reddit_premium",
"ring_protect",
"roblox_premium",
"scribd",
"shutterstock",
"siriusxm",
"slack",
"sling_tv",
"snapchat_plus",
"soundcloud_go",
"spotify",
"squarespace",
"starz",
"strava",
"substack",
"surfshark",
"telegram_premium",
"tidal",
"tinder",
"todoist",
"twitch",
"uber_one",
"ubisoft_plus",
"wall_street_journal",
"walmart_plus",
"washington_post",
"weightwatchers",
"wix",
"x_premium",
"xbox_game_pass",
"youtube_premium",
"youtube_tv",
"zoom"
],
"type": "string"
}
},
"required": [
"vendor",
"days_since_purchase",
"region",
"plan"
],
"type": "object"
},
"name": "refund_eligibility"
},
{
"description": "Evaluate whether a US consumer subscription purchase can be reversed under versioned source-backed rules. Returns UNKNOWN when required conditions are absent or manual review is required.",
"inputSchema": {
"additionalProperties": false,
"properties": {
"days_since_purchase": {
"description": "Number of days since the subscription was purchased.",
"minimum": 0,
"type": "number"
},
"plan": {
"description": "Plan type. Currently only 'individual' plans are supported.",
"enum": [
"individual"
],
"type": "string"
},
"qualifying_conditions_met": {
"description": "Required when the vendor policy has source-specific conditions such as first purchase, unused benefits, or an eligible annual plan.",
"type": "boolean"
},
"region": {
"description": "Region code. Currently only 'US' is supported.",
"enum": [
"US"
],
"type": "string"
},
"vendor": {
"description": "Vendor identifier (lowercase, underscore-separated).",
"enum": [
"1password",
"adobe",
"amazon_music_unlimited",
"amazon_prime",
"amc_plus",
"apple_app_store",
"apple_arcade",
"apple_music",
"apple_tv_plus",
"audible",
"bitwarden",
"britbox",
"bumble",
"calm",
"canva",
"chatgpt_plus",
"claude_pro",
"coursera_plus",
"crunchyroll",
"dashlane",
"deezer",
"discord_nitro",
"discovery_plus",
"disney_plus",
"doordash_dashpass",
"dropbox_us",
"duolingo",
"ea_play",
"espn_plus",
"evernote",
"expressvpn",
"figma",
"fitbit_premium",
"fubo_tv",
"github_pro",
"google_one",
"google_play",
"grammarly",
"headspace",
"hellofresh",
"hinge",
"hulu",
"icloud_plus",
"instacart_plus",
"keeper",
"kindle_unlimited",
"lastpass",
"linkedin_premium",
"masterclass",
"max",
"microsoft_365",
"midjourney",
"mlb_tv",
"myfitnesspal_premium",
"netflix",
"new_york_times",
"nfl_plus",
"nintendo_switch_online",
"noom",
"nordvpn",
"notion",
"paramount_plus",
"patreon",
"peacock",
"peloton",
"playstation_plus",
"proton",
"reddit_premium",
"ring_protect",
"roblox_premium",
"scribd",
"shutterstock",
"siriusxm",
"slack",
"sling_tv",
"snapchat_plus",
"soundcloud_go",
"spotify",
"squarespace",
"starz",
"strava",
"substack",
"surfshark",
"telegram_premium",
"tidal",
"tinder",
"todoist",
"twitch",
"uber_one",
"ubisoft_plus",
"wall_street_journal",
"walmart_plus",
"washington_post",
"weightwatchers",
"wix",
"x_premium",
"xbox_game_pass",
"youtube_premium",
"youtube_tv",
"zoom"
],
"type": "string"
}
},
"required": [
"vendor",
"days_since_purchase",
"region",
"plan"
],
"type": "object"
},
"name": "return_eligibility"
},
{
"description": "Evaluate a live US consumer subscription trial offer. Supply observed availability, duration, card, and auto-conversion facts; the tool returns UNKNOWN instead of inferring current offers from static data.",
"inputSchema": {
"additionalProperties": false,
"properties": {
"observed_auto_converts": {
"description": "Whether the confirmed live offer converts to a paid subscription after the trial.",
"type": "boolean"
},
"observed_card_required": {
"description": "Whether the confirmed live offer requires a payment card.",
"type": "boolean"
},
"observed_trial_days": {
"description": "Trial duration shown by the confirmed live offer. Required when offer_confirmed is true for a variable offer.",
"maximum": 365,
"minimum": 0,
"type": "integer"
},
"offer_confirmed": {
"description": "For account- or promotion-specific trials, whether a live offer has been confirmed for this account.",
"type": "boolean"
},
"plan": {
"description": "Plan type. Currently only 'individual' plans are supported.",
"enum": [
"individual"
],
"type": "string"
},
"region": {
"description": "Region code. Currently only 'US' is supported.",
"enum": [
"US"
],
"type": "string"
},
"vendor": {
"description": "Vendor identifier (lowercase, underscore-separated).",
"enum": [
"1password",
"adobe",
"amazon_music_unlimited",
"amazon_prime",
"amc_plus",
"apple_app_store",
"apple_arcade",
"apple_music",
"apple_tv_plus",
"audible",
"bitwarden",
"britbox",
"bumble",
"calm",
"canva",
"chatgpt_plus",
"claude_pro",
"coursera_plus",
"crunchyroll",
"dashlane",
"deezer",
"discord_nitro",
"discovery_plus",
"disney_plus",
"doordash_dashpass",
"dropbox_us",
"duolingo",
"ea_play",
"espn_plus",
"evernote",
"expressvpn",
"figma",
"fitbit_premium",
"fubo_tv",
"github_pro",
"google_one",
"google_play",
"grammarly",
"headspace",
"hellofresh",
"hinge",
"hulu",
"icloud_plus",
"instacart_plus",
"keeper",
"kindle_unlimited",
"lastpass",
"linkedin_premium",
"masterclass",
"max",
"microsoft_365",
"midjourney",
"mlb_tv",
"myfitnesspal_premium",
"netflix",
"new_york_times",
"nfl_plus",
"nintendo_switch_online",
"noom",
"nordvpn",
"notion",
"paramount_plus",
"patreon",
"peacock",
"peloton",
"playstation_plus",
"proton",
"reddit_premium",
"ring_protect",
"roblox_premium",
"scribd",
"shutterstock",
"siriusxm",
"slack",
"sling_tv",
"snapchat_plus",
"soundcloud_go",
"spotify",
"squarespace",
"starz",
"strava",
"substack",
"surfshark",
"telegram_premium",
"tidal",
"tinder",
"todoist",
"twitch",
"uber_one",
"ubisoft_plus",
"wall_street_journal",
"walmart_plus",
"washington_post",
"weightwatchers",
"wix",
"x_premium",
"xbox_game_pass",
"youtube_premium",
"youtube_tv",
"zoom"
],
"type": "string"
}
},
"required": [
"vendor",
"region",
"plan"
],
"type": "object"
},
"name": "trial_terms"
}
]
}What the leaf hashes
{"body":"0ca44141e31e27c1dabddaedb5fb9bf19e6c12a73481afdc1c7b6e13f794034d","id":58895,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793025445098302,"prev":null,"subject":"711336a3-734b-45fd-84ed-28936680edd9","subject_kind":"endpoint"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).
- 0xb34ee2b9c8f699bd8ab0423b700b751d5bb730182dd99da2c9209cd1a34a45d8
- 0x6a135b4b6dae59fef180436d5a64a828460ef10a32959691f63769e0d7e78c76
- 0xbe7d57d505283d93f0a66df6b8ad03df7232db48ac1f7c7329a19452c7da58e5
- 0xe03b93c5e8860c366b0b1c97f2b723404062abe5044f90b4b303e506e8676387
- 0xc96c848362372544aa242a85988276a7a8374a5871d73b729254e98d736328b0
- 0x79df8da5938684f06f252dd5851cdfd0285cd71c158a9f2d08ca495d79729ce0
- 0x5d35fe2775c723e07100a4be2381ac9d207169f839c6d0d0065dc499a24ec283
- 0xf3688185f2d429481816af99e280cd04f8084a3802334b2526b36fbdcfcfbbf2
- 0x18d9426eda026cbd6d9499d352c359876563a8e5b407631f000ddd6e159a6e2a
- 0x02f72c34cadc7e4285efd87b76cb403220f4a25cdad402e412233c0a44206107
- 0xc50bb1c2185da1e4294f4829be5412051ce30550dd05a2a26962841b3ba2399d
- 0x3d6ec9d5ef8daa604601742088e213da0a439db6eff6ce50ec3ffb264a60ddd3
- 0x3b1c0e225d1b1cb24cd5d5ea4af2de20ed68a1eaf8b61924ed1b81e4b9cf7e39
- 0x083427e39db4dd470662401f6db5db8fadf084fc4274cf8621b368416952b78b
- 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
- 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
- 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae