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 0x0093c6897eded1196cc1f1462d2b5cd5c603b8a5fce9cf285b198e97db89ebfe. 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/5a683bea-b465-4af8-b08d-e206cb279804.json and https://artists.proofprofile.net/proofs/artist/5a683bea-b465-4af8-b08d-e206cb279804.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El Pájaro Carpintero - Los Nuevos Canticuentos
El Pájaro Carpintero (Los Nuevos Canticuentos)
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 0x553691d0db80e2c152deb56ecabf5ef9b760325d1c2f93509dc6ede38c0b4c8a. 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/COC012442465.
La Iguana Y El Perezoso - Los Nuevos Canticuentos
La Iguana Y El Perezoso (Los Nuevos Canticuentos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3b2a065f21c5f7badea3ba0657b1161f83ea4df94526c0b8c411f03a62c354. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/COC012440987.
La Iguana y El Perezoso - Los Nuevos Canticuentos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136485ebdc542c6dcebd03a47d3a28c4c221d89b6b61933fd725691a7bb49323. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/COC017510348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3df630450e1390a79584e652cab812e53f0ce36899319b116721794fb9428a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/COC012441147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553691d0db80e2c152deb56ecabf5ef9b760325d1c2f93509dc6ede38c0b4c8a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/COC012442465.
La Canción del Cero - Los Nuevos Canticuentos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78ac6c38748621296beec3ef4739576fa348f0d94d5ded7091fed2dd9f678b2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/COC012543840.
La Ronda de Las Vocales - Los Nuevos Canticuentos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca49ac9bbbe98aed664a3c183107fa8c25fc56239384fb248d0989bda0cb71a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/COC012544082.
Sammy el Heladero - Los Nuevos Canticuentos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0e5e4121f5dfa838587c82693d84b2b78ac97498933b3b8c801ffae209cb10. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SGW502599623.
El Pirata Feroz - Los Nuevos Canticuentos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24bb577beb898a6df39edf763318d8c3c187436db29d20c4eb153fac6bf9ee8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SGW502554480.
Canción para mi Papá - Los Nuevos Canticuentos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d91e0d098dad579a67624d9cb67c952854a6b7432ab5adbd9fe303458240ec. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SGW502587064.
La Serpiente de Tierra Caliente - Los Nuevos Canticuentos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3218900682f9a7625a0c03950566612ba6096da17b205c0e6c62cc3201b69d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/SGW502531275.
El Negro Cirilo - Los Nuevos Canticuentos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20617486fa5e08253dedf2741fc50beaf60b553ba5eed78a8c089f9107490f74. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SGW502591252.
La Serpiente de Tierra Caliente (Los Nuevos Canticuentos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3218900682f9a7625a0c03950566612ba6096da17b205c0e6c62cc3201b69d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SGW502531275.