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 0x783b0bf6c510b5a4bf0593686235a937a5cbedbd2547ad8b7578de2ab310b6de. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d41d641-24a1-4d0b-9841-56733618711b.json and https://artists.proofprofile.net/proofs/artist/5d41d641-24a1-4d0b-9841-56733618711b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
It Could Be Worse, You Could Be Laurie Wright
Desperate Times Disparate Pleasure (Live At Sound Shack Studios)
Rock & Roll Ain't Dead While We're Living
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 0x90582d49a694e407884a3ea1c853e8970289b440e0b1a873d8cd3b52b676e449. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZFYX2376756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fdeb849c028327703477af6f85ad91f78dd57ec73fa78480228043ab4dcf937. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/QZPLR2383719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d179456131a1475635c63a20b26bd682a171502263c7d25ec807202dbd612c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZPLR2383720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb99ae78a496faa56360f58beecd2153022a28e0a5006a57486cffce96a26d9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZPLR2383721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fe1fb79128e24ea4a5aa23c2a0c131e0128a6774048edb0645104e89d04736. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZMEQ2333544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf397e97b5fe97ad2eb25f2607be55dd6006176f376f09cfbd453c2ceffa9d363. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZPLR2383725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2662bc957655a3ac2a3159493a40ec19ed2952ab6533cf8048546cccfc98a780. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/QZTBD2406045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58861dd12c31b213de094233377581d9e1d0dafb93e0e69ad5c7462f3b5157c4. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZTBD2406046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb2031a8d7a491ea88033d0ad044ceabf0f326f7b775b92bc8e0e9bb33462bf. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZTBD2406047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6a5c742145043b9c9b712b1d8658eb503ed7ad9acac2bfe13bfefeaa76f7620. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZTBD2406048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807577fedc09094da8e2dd8075404bea129114e8e8fe581cd04e90d95e3e41ef. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZTBD2406049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031de1cc3efbe6e643167a8988c1fa2e942ff043d3e5b08ade2edb0137b7b2ef. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTBD2406050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aafca91adff92cd289e56a88068c5dd69df51dbc75b96d030acb593848d2663. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZTBD2406052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f0c238b3cb5aee970ada2385aee8ea9c938de2f9eae6541a6ae7dc66f7726a. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T00:53:33Z), 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/QZTBD2406053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8f7ec47af6bd4f0c4fb1b866211efab63556dad889b5372a2e2171b8439454. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZHNA2429806.