← The evidence ledger
Evidence row 2201305
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://bitcoin-network.x402tookit.com/btc-supply
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 187a06f39cf03ca3d78c7ac5685fcf6a0625c763a42d8038de6c3e6b8c62042b
- Leaf
- 0xb5ce302e235cb9ace12dae9ccf2979548890642b48f0adfeea78e1ed9bb0245f
What was observed
{
"endpoints": [
[
"x402",
"https://bitcoin-network.x402tookit.com/btc-supply"
]
],
"name": "Bitcoin Network",
"owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
"raw": {
"accepts": [
{
"amount": "20000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "20000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
"transactionVersions": [
0
]
},
"maxTimeoutSeconds": 300,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
"scheme": "exact"
},
{
"amount": "20000",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:137",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
},
{
"amount": "20000",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:42161",
"payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
"scheme": "exact"
}
],
"description": "Bitcoin issued supply, block subsidy, percent of 21 million mined and the next halving, computed exactly from protocol rules.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"unit": "btc"
},
"type": "http"
},
"output": {
"example": {
"asOf": "2026-10-11T05:14:45.313Z",
"blocksUntilHalving": 79127,
"capBtc": 20999999.9769,
"degraded": false,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"estimatedDaysUntilHalving": 549,
"halvingEpoch": 4,
"height": 970873,
"issuedBtc": 20096481.25,
"issuedSats": "2009648125000000",
"nextHalvingHeight": 1050000,
"nextSubsidyBtc": 1.5625,
"notChecked": [
"coins lost, burned or provably unspendable (issued is not circulating)",
"blocks where miners claimed less than the full subsidy",
"…1 more"
],
"percentOfCap": 95.6975,
"reasons": [
"Issued supply is the protocol maximum to that height; some coins are provably lost, so circulating supply is lower."
],
"source": "mempool.space (tip height) and Bitcoin consensus rules",
"sourceUrl": "https://mempool.space",
"subsidyBtc": 3.125,
"summary": "At height 970873: 20096481.25 BTC issued (95.69% of the cap), subsidy 3.125 BTC; next halving at 1050000 in 79127 blocks (about 549 days at 10 minutes).",
"usedCurrentTip": true,
"verdict": "COMPUTED"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"height": {
"description": "Block height to compute at (default: current tip)",
"type": "integer"
},
"unit": {
"description": "Headline unit: btc (default) or sats",
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"blocksUntilHalving": {
"type": [
"null",
"number"
]
},
"capBtc": {
"type": [
"null",
"number"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"estimatedDaysUntilHalving": {
"type": [
"null",
"number"
]
},
"halvingEpoch": {
"type": [
"null",
"number"
]
},
"height": {
"type": [
"null",
"number"
]
},
"issuedBtc": {
"type": [
"null",
"number"
]
},
"issuedSats": {
"type": [
"null",
"string"
]
},
"nextHalvingHeight": {
"type": [
"null",
"number"
]
},
"nextSubsidyBtc": {
"type": [
"null",
"number"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"percentOfCap": {
"type": [
"null",
"number"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"source": {
"type": [
"null",
"string"
]
},
"sourceUrl": {
"type": [
"null",
"string"
]
},
"subsidyBtc": {
"type": [
"null",
"number"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"usedCurrentTip": {
"type": [
"boolean",
"null"
]
},
"verdict": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-11-02T04:06:03.868Z",
"quality": {
"l30DaysTotalCalls": 3,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-11-02T04:06:03.701Z"
},
"resource": "https://bitcoin-network.x402tookit.com/btc-supply",
"serviceName": "Bitcoin Network",
"tags": [
"bitcoin",
"supply",
"halving"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Bitcoin issued supply, block subsidy, percent of 21 million mined and the next halving, computed exactly from protocol rules."
}What the leaf hashes
{"body":"187a06f39cf03ca3d78c7ac5685fcf6a0625c763a42d8038de6c3e6b8c62042b","id":2201305,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646803252555,"prev":null,"subject":"x402_bazaar:https://bitcoin-network.x402tookit.com/btc-supply","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (444186 rows).
- 0xb5ce24561ae5df9d822f1a64f8d85031e6d9d79564e49a3c951eba67ec5baebd
- 0xd48b4e225bf445daf1ea46fc44933610f8036c57e00c76892a1c7812ebfe45a5
- 0x4a2eb19f0916a0ef0f0d93bc4c207ca5d68a776862a8af9663e6721f8855f254
- 0x8f3677efc7bcc34c479a87512e4338590775ab97af9db7b94a401d65daf3b9a5
- 0x26f89cb4f45642c71439cd33cd63f2ba7766a3ac6ca8efa59c60de388184b3a7
- 0xda6cabcbce698228c2ec53c98f251c37aab535b92286789ef6adbc0dcc71e93a
- 0x2836b7cc5056549840ac0e3fae228e38beb6073a2cebfc87e2d5a826cb3db84e
- 0x6db6d86adc027feb331a7d86498216f044499f722551e60de21c213a84373554
- 0x627d2479703f75d246c49521c44a2bb5808e3eaa12b0b2e41f8bae86664c0069
- 0xc4421264acb293617e4559bd2abc2e62b243c552b52a5bee8d5501789227dccd
- 0xf7e87ac559af2cfc5f27158cbcf0e96bb750fd5ab51330b9fb71fbec1012b4e0
- 0x5d48d61efa15a1eaabc2b8fe3288726baac176ec765001989034339357eb596c
- 0x030e61e00342e920981555e2e665fa5ec4a741b10a078f282daa829896c87583
- 0x08da04eef748b7ac08271324db18913501d72c52afa240bf3f08b6da46e3b97f
- 0x834b6b9a36b42da183e2542785e8d2d7548ace455268a81922edbe6020cef644
- 0x2922573a524a0694086782ac45fa3083d3fc3f6a2a479b2105e1e2f06b2916f7
- 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
- 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af