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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc9c823817989acfca9a76a17823cec3c1d09b1498703ed2dee23a54bb94705. 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/6e607f33-45c4-4a73-a6fe-1ef6a42ad567.json and https://artists.proofprofile.net/proofs/artist/6e607f33-45c4-4a73-a6fe-1ef6a42ad567.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Quero Te Ter Para Sempre (Look Project Dj Remix)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958ca6cdbc78851fb261c6ce91e37d2feb06e5da584718196dab9d002d3b2f71. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/US7VG1596082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c529f7de196fd4650a65ee70ad4a3169048ad8534e635a2fb163897c3bcb2c1. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/US7VG1596083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd7cd311ce557c86964f320465a4ae25ceed2c4e12b9f6cf763ed0a26f959f25. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/US7VG1596085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88494bd12b68f92e29e99a54b40f5996b63b08f5ac91a71d1707d0107d14b99c. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/US7VG1596088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1e48502dca943e9b812b83e46f2cf76687d00c551278c8cd1b84f12351ff05. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/US7VG1596089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45bee381d504b0852849fe70145b064da7a86de2c904174a225b7acbb139cd43. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BXMH91600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee50d0c0dffe04b43654056e10215eb4d4bc83cd231388d33faa5eebdce3009a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/US7VG1853664.
Quero Te Ter para Sempre (Joel Life Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fcbd40a331f4f1ed960a79a63c395df4ea09fe762b93284f23cc111e5036c50. 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/QZHZ41975149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6ccc40ab69bc1877a43fdcee5b7a07621bd315d91ccfadd920d1ef7cce3cbb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZHZ32047258.