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 0xd8a8cc93ebff4705ce2520f65a48637daf07eaef036f61e12e9320a2d5885632. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9d6058f-b7be-43de-a573-56385833e44a.json and https://artists.proofprofile.net/proofs/artist/d9d6058f-b7be-43de-a573-56385833e44a.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85061c7aa1ec38a1c7c1d0f73bc6e57af5ca06690915798c6621ab48e73eea85. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/BRGCD0500744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd529cd0e6b691224914a7ce50439e540c933f77c99a3cdcfd4c7af35737d70ee. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BRGCD0500745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adc4e49f672812867e8bf691d3990b3ec08ae8d8d359088f95b0277a963733d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BRGCD0500749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e203c1ea6e3fcba97862a992c581b9b28a35b4954fbae4653b9a509fd141b2. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/BRGCD0500750.
Você Me Vira a Cabeça (Me Tira do Sério)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc72e94a0f9dfca595e0003bfb38248020e596274c0e3fb355b77227f69d1a7. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/BRGCD0500751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c6d54163dc32a1b4a39777f048a476db329173009bbc2098928f0df583d049. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:00:48Z), 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/BRGCD0500752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa983f6a32b281d1a860c2de2a37a8b89ad060733933fb8d4115278d50d94f76. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:57:46Z), 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/BRGCD0500757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41363265338011eefc31c3c8998bbd445923a905d4532e277a28350fe6a8996. 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/BRGCD0500765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ccedcbb3c2543ca13e69042fc9065e925a8f48f0f72bb8f115e55e7eaca72f. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:24:18Z), 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/BRGCD1600094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1cb6bd8b28d437198435c5381b8d5d8d9c114eb80eae89e16f972fb8f71aedf. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:28:18Z), 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/BRGCD1600096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f31207f68317c28ee931ad6d6aa398fe03efbfd85cdee99f504c1379dfa5ab. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BRGCD1600098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58741828a1b555cb67d37e6fa5e75ed2984c3288cb1a7817922ea9b409d5f5f1. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/BRGCD1600099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8cb3128b53435704c837267606e036a73c8f8577468906925d10889a8d0ffb. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:20:48Z), 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/BRGCD1600101.