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 0xee814faa1fba6beba36131c374036f3715ef80c9892f6d0adb1916cbc03e7082. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c22f79d0-8b88-4113-b199-fbeb4f4fe03e.json and https://artists.proofprofile.net/proofs/artist/c22f79d0-8b88-4113-b199-fbeb4f4fe03e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Street Rockaz presents World Go Round Riddim
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 0x165bb4eac82ed5c8f2d78a57a69fa2153b328353504de87eae745958bbf5a569. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/FR2X42313195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb668427ec51882a6c0ad277464c057aaea7f6e8a4400b5a8d136cb6323ec3d0d. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/FR2X42313196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7393c813a851c21c6474c12b82287d5efb831517d0e6263a6d7f257214c334d7. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/FR59R2532065.
The Essence of J. Rawls (Fifteenth Anniversary Redux)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1edb5189185855f6ae38abaae1fa81fc7e29a37555e2188796bde5f2aaf745. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEQ121639654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14bb6677a029ec74176eba25113a4c73dfdcd0b210822ae1ce8b7f11cc417880. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USGH60610043.
Higher Heights (Give Me Herbs) - Ed Solo Edit
General Levy presents Welcome To The Jungle + Mix by Deekline & Ed Solo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff332a465f2e5ee4f1412438608dd17c3f0d32ba91b1cae0998b2404c706e81. 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/GBFG92000035.
Welcome To The Jungle - Gold (The Best Of Jungle Cakes) - DJ Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8b4216d39ae44f645121ad16f41c84aec697174c93b770a74c725a1a1cb5b7. 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/GBFG92200062.