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 0xe65b3898778e61c3c7deff605a6e69494d98236a1b32901255090f0c202d34da. 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/04f8c64a-4161-4873-ac17-96d3aaadfa7f.json and https://artists.proofprofile.net/proofs/artist/04f8c64a-4161-4873-ac17-96d3aaadfa7f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vintage Cuba Nº 49 - EPs Collectors "Damiron Y Su Ritmo (Piano Y Merengue)"
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 0xf17f24c20ca0a6ce68bedbc94e62b6e68c307ebbb3cb29588372695dbf8daba9. 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/DEUE12429828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb91779a3c9991f8fb5cd61a3ec6eb0b3886d64fe72935b7c9b55b9e26369f2. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/DEUE12429829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe72e71742600f7380ca23c9b7a5d7f2296b6a4ec6a671e27a9018a044f59472. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/DEUE12429831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72607e3f72cd2b579f7ca4bfcf445942d99250fc206331e72566afb40ecc674b. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/DEUE12429834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa175cce020e1e5d77577d8eaf5c5e22bac0c389a03b10357e096543ca812467f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QMYW20400811.
Damirón Piano Merengue And His Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66fc1a3c044b19e70cacfb319241f6ca75efb7d81d3d5186fd07503c481dd0fd. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QM6P41513911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eba8c445c3cb44bc5a74b7b8fd52c677ed6ce96bea44eae39604f2a3e002d42. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QM6P41513912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb2f528fdacfe25128179595cf1f33bdcae651974b06e19436e5d3b9407a3e9. 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/QM6P41513913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e1161878ebc2088f86b4faed7ef6f03869952759c626e0b8f81650934c63cf. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/QM6P41513914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9bbf395fc07174a0c35c649f204817052e4a3bc3238b46cc0b6c0a567a22760. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T08:31:39Z), 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/QM6P41513916.
Damirón y Su Piano, Recordando a Agustín Lara
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e60c9e91aff4fc7738dfbe16f9443b634a866864320d376d8cb778d31ffcec. 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/QMFME1535942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f613c95e12792c0e2f0c21bbbe17ae086f427e871cb40a492c503be36db3f57. 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/USA561075436.
Las 100 Grandes Que Debes Bailar Antes del Fin del Mundo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0678f7901d0bc06259da24af8292a7f6acf44ea0077a912b0cb977138190c27e. 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/MXF015800380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7718c4901c3186033848bd622bc3c9cbebfd1033c8c7d2d4e408f2899b0a07f1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USA370944183.