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 0x3e7ca2cc766a652eec15236c5ee9a6725d68e15283e74b3746f328b3163526b8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea5b8c90-748d-4e82-aff9-6348feb92967.json and https://artists.proofprofile.net/proofs/artist/ea5b8c90-748d-4e82-aff9-6348feb92967.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 0x96c553065e9db4d1971dcbf38b153a7759447e223b8b64dec298b96029e5ce19. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCJPX2382912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad97be6c9d9b22abb2e4963f7306feb8100411ef6ee97476c2698f2b098201f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCJPZ2408404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9fc0ffca3a480785a35a272455332785e9105465aa459c220aab21e16b89d43. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/TCJPZ2452123.
Even if it doesn't work a hundred times.
UCHIDA1 (feat. MCBK & FAZ $F) [Laos Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a5a5877d626808bdeab4bc14d08bb6abd4c7f7ae0665609fc4b9b762c63680. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCJPC2468919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a5a5877d626808bdeab4bc14d08bb6abd4c7f7ae0665609fc4b9b762c63680. 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/TCJPC2468919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9ed348f6d486f53997dee0ef93bd5ab6639563e6c8a1450f36056c35d403ac. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/TCJPF2555761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf43311f8eee7312ad24fcaa26a215990a1bfa751c7fccc5b88211d2df3f34d. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:59:16Z), 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/TCJPJ2571883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b7a1a7d07cd63c9f59d671ea300b4292483a0ec13c1f63610ec572a23b06c5. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCJPL2569529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec2debfd04d1733ecc979b152df6283df36fded87269dfa2d1630aed0dce7d2. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QT66J2558587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3defa431a50361e5cc8f87de69597fc1397daae05c0bb993db9575cc97efd1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCJPB2472393.