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 0x2cfbe6884cdf624d3dab5e45612af91defb857da606b9b85c6db5ef928393d15. Chain 2 (Bitcoin): anchored in block 954017 (2026-06-16T23:38:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35c6e89a-0f28-4b11-a56c-0958af13a14c.json and https://artists.proofprofile.net/proofs/artist/35c6e89a-0f28-4b11-a56c-0958af13a14c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xf09281ba9ff59cbe983d8a82d0f4a11f33728344a77a58d2398990ff16b33f18. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USCGH0564746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b2796c77a7a419db3a1a25c0a3db857ba44412f5e61ddbdbbe8cc5b8fcee33. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZDA61967474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae79732d777e0489289e9fb0a8bb39186687dec957a5dcf7b8bd399810043f61. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZHN92222395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b87754d8b7e4158e442f43b083e193f85103b37f67503b9a568c0ad18ddce24. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZHN92222396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe057df1b782507b6db0502af843c3c85dd2c13e7cdaba5586b68e5a1a925c5e1. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZHN92222398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e894fa0616f2f683da19f9b0d502dfcbc3acf59fbaae90e4f042231efec78b5. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QZHN92222401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa0716e5bf5bf240700df278de2e3d747f22c53c5b81c753b4a0d7235da1397. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QZHN92222405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a61cbbab197d616724a23e332a9e17ef411c8b2982a09ad9066859d27ceb45. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZHN92222421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ae34fed9afee93d66c37fcdb9884ed9420977493a4f36241deed8e20963966. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USCGJ1784623.
Fresh Boris of Bensonhurst episode 2 "The Mini-Bar: Mini-Concoctions for MAXIMUM IMPACT™ "
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb9a08f3d6b59d05e4339c301dbf7124473b48d9541ef3b5bd3662d9c30dc65. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/US3DF1100855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d6d7b62b84bba7d4e5a3e837f7dc8593f57c9f50de85a4aa3402e6afab6b21. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US3DF1100866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cfe35a3e298df16534c8490bc03d14dad1d0d47d3afdd0420b7eba3f0b90c8a. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/US3DF1100868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b170683658bc1f860b17638f5216a121625ac6d8dddb8a003a8cdf0d004583. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/US3DF1100870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1d70a428ca128d11e4eb8e8ce443349d559b544781a9a2675d1909b0f5de40. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/US3DF1100871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64bd094f7dfe6bd85b5dc2b0d62ac1153503af462bb8e1944930162ccff37ac1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US3DF1100891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7142d25e8cca5d222da9302c9cd33ce6de1b50ec113456648074c0ef4dc63147. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/US3DF1100897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bcfd8433b1db7153c486a908604b5a325b0fe7a2a261d8b9e9896b8e0494dca. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/US3DF1100898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d8fed524da43bdfd86d913d6eb4fcb149e548fd9b163fa91e91301ba194913. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/US3DF1100900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbab9f43944226ce0e0da0f9259a35b65cdf4116128919be401498e38939e898. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/US4AD0400403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0677adcaa7ad775addbd60e27a2c44d2997d9772f177413379b8f40e366b95. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US4AD0400412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fadd15e0289bfd22bb8c2e47ee22bc52d649c5cdd5fe8d95dbbf5edcc0d214b. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/US4AD0400416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b9f51c0e3e322aa209bce83e9c7f7525e972baa0760282c6de958b9ed96f1e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US3DF2261976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91211642f4b78a820052abc0d4728628a54ac1ead1b003c22b61feca3b924ad8. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USA371088618.