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 0xba62daf36226740eccb774039b54be4d62fc8c08ae40419214591f20de841f29. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/009657d9-0da0-4457-b716-25e7b96bbd93.json and https://artists.proofprofile.net/proofs/artist/009657d9-0da0-4457-b716-25e7b96bbd93.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 0x0d6b9b4d87bd9bb0960f4c74eda8013f28398648d6761f946548972ba341f9cc. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR59R1994773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5ab68794d4d706c8c26d45b905119016cbb025169727b70f10a7e6c7a2310e. 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/FR96X1942498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb0f1db5476273e420a311cc9463fdf903f41b8af761a6a084f04abbbeda008. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/FR96X1942499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43be79d4279896ac31d672db9b73330e25e09410e9ab9fe473196c7eb446a5c4. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FR96X1942501.
Asi Nomas, Vol. 2 (En Vivo Con Tololoche)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0022ac8b3279c7a7ca36ea2b511bae3ea19b44a527edc5155b9dbac6b44d5f9. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:38:32Z), 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/FR2X42272760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37defc837951601772a0fe66b751e3c69b715d205f1f4c5d5e47f3415221988. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZQMB2102498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe56f6960c6e87dfaa9e94caed1982bcb459dd9d07678f631945258f7e9fe0b. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DGA072385819.
LOS DEL BARRANCO en vivo fiesta privada (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c95f0b36d87cd5dc29de29da4c9f680c8442644eb4c52fc9ef172ede6980370. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZDQH2505301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53110f2fe123af3a8484df7a4bb82b73ae2fde44ea5f424a5683017dd803bc5f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZS7J2518829.