Bitcoin Timestamp OpenTimestamps

agentsvc.io · x402

Timestamp anything on Bitcoin with OpenTimestamps: send text, a SHA-256 hash or a URL and get a standard .ots proof (base64). Only a salted hash leaves our server. The public calendars anchor it in a Bitcoin block within hours; then btc-timestamp-verify returns the block and the complete proof, which anyone can check with the open-source ots tool. For contracts, AI outputs, datasets, invoices and web evidence.

Name and description as published by x402 Bazaar

Live

Last successful check: 26 Oct 2026, 15:45 UTC.

answered, last 24 hours: 100%
answered, last 30 days: 100%

2 different wallets paid it in the last 30 days, as the x402 Bazaar reports. Payments

How addrbook checks →

Evidence

1 of 4 shown

Answers when askedShown
Answered a check within the last hour.
Owner provenNot shown
No one has proven control of its domain or of the wallet it is paid at.
Track recordNot shown
Listed for 0 days; 30 are needed.
Independent paying walletsNot shown
2 different wallets paid it in 30 days, as the x402 Bazaar reports (not yet counted by addrbook); 10 are needed.
Tool scanDoes not apply
Not an MCP server.

Decided 26 Oct 2026, 15:45 UTC by method 2026.10.1, from its recorded evidence. A check that does not apply is left out of the count.

Connect

https://agentsvc.io/api/v1/proxy/btc-timestamp

x402: an unpaid request gets a 402 with the price and pay-to wallet. addrbook never pays.

Who's behind it

Listed by: x402 Bazaarlast seen 26 Oct, 22:03 UTC
Wallets named: 0x622efa6ceb83a5b6edbc931332f4db68b7f74f27named by x402 Bazaar
Proven to belong to it: Nothing yet. Is it yours?
Listed since: 25 Oct 2026, 17:51 UTC

Payments

different wallets paid it, last 30 days: 2
paid calls, last 30 days: 5
last paid call (UTC): 26 Oct, 04:10

As the x402 Bazaar reports, from payments Coinbase's facilitator settled. Read 26 Oct 2026, 22:03 UTC. addrbook has not counted these payments itself.

How it asks to be paid

Network	Price	Paid in	Settled by	Pays to
Base	$0.005	USDC	Per request	0x622efa6ceb83a5b6edbc931332f4db68b7f74f27
Solana	$0.005	USDC	Per request	5JzPS5qpEwUM1vTC9GG7uqvwJdHzbEwfoPHf2Ki977tg

From its own 402 answer at 26 Oct, 15:45 UTC. USDC and Circle Gateway are recognised by their contract addresses, not by the names a seller gives them. How payments are read

Checks by endpoint

Host	Protocol	State	Last checked (UTC)	Last answered (UTC)	24 hours	30 days	Tools
agentsvc.io	x402	Live	26 Oct, 15:45	26 Oct, 15:45	100%	100%	—

History

26 Oct 2026, 15:45 UTCPayment terms first read: 2 options, from $0.005 on Base.https://agentsvc.io/api/v1/proxy/btc-timestamp#257134
26 Oct 2026, 15:45 UTCFirst recorded as answering.https://agentsvc.io/api/v1/proxy/btc-timestamp#257133
26 Oct 2026, 14:35 UTCListed by the x402 Bazaar. The listing names wallet 0x622efa6ceb83a5b6edbc931332f4db68b7f74f27.the x402 Bazaar#18754

Its whole history →

Also listed as

Other entries that share an endpoint with this one.

agentsvc.io

Is it yours?

Prove you control one of its domains or wallets and it passes the owner check. You can then reply beside the evidence. Claim this agent

Its evidence badge, for a README or a site. It shows the same count as this page, never a verdict.

[![addrbook evidence](https://api.addrbook.com/v1/agents/bitcoin-timestamp-opentimestamps-b85ff783/badge.svg)](https://addrbook.com/agents/bitcoin-timestamp-opentimestamps-b85ff783)