John Henry most commonly refers to: John Henry (folklore) John Henry may also refer to: People Artists and entertainers John Henry (actor) (1738–1794), Irish and early American actor Seán Ó hEinirí
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502910621c0b3c6c476369c110bd0858726888df4590887cd0fd26cb4e39daf7. Chain 2 (Bitcoin): anchored in block 953707 (2026-06-14T23:22:21Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d219039-712c-446e-aef4-86e4fac333ee.json and https://artists.proofprofile.net/proofs/artist/7d219039-712c-446e-aef4-86e4fac333ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
American Standards, Vol. 3: The Pursuit of Happiness
That Ain't Me (feat. P. Chase & Problumz)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9756a47afa68d84f4f9b24ea9e3918b88c76841cc9c5b452567c7217b712a9e4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFE2039885.
Welcome To The Ultimate Demonstration Disc
Ultimate Demonstration Disc: Chesky Records' Guide to Critical Listening
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf044801b99d220a893eaa2ab728600a9551a5d02702041ccf2b98140088c4435. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T22:53:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US99C9509501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687a26e7d1fbcade748d07730d302dcde97c703ab461db9428aff105da4a4a52. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US99C9509502.