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 0x174533aa9d3624a530277c974a2407ef3cb742fc6d33bbe160e533e1513e020e. 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/3fa1d25d-ecb4-4b75-8cb1-542c76a78a98.json and https://artists.proofprofile.net/proofs/artist/3fa1d25d-ecb4-4b75-8cb1-542c76a78a98.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El Pistolero / El Gusanito / Pávido Návido
Y por Esa Calle Vive / Una Aventura / El Chubasco
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 0x4e4f4e7a840450a6c98314482521b189437e0487603fc96fa24cb32283163662. 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/QZGLM2045038.
Tatuajes / Sentimental / Amor Limosnero (En Vivo)
Tatuajes / Sentimental / Amor Limosnero - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1257c1691cc18866cf4c371151d7bab7decb4b5693c3e9db3eac7471c58d8b7. 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/QZHZ32003493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5c24c622ba97f2a5cd821770af9214275924e8ae4a40e18be162193e5ea4d3. 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/QZHZ62027148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1e7509e08e3d1df76af4b8169387a2dc354607ea2118cb3289b978b6e77a40. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZHZ62027149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe14836b49189dbb93341a672c9133a017f5fcffc58eaee88104c619e54edda. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:22:35Z), 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/QZHZ62027150.
La Burra Tuerta / La Hormiguita / Por Cuánto Me Lo Das / Se Me Perdió la Cadenita
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9581ed76047b06452dda6c8e67e2b5a740559927928e87c8708cfb1d586d88c0. 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/QZNJZ2210020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7081feb37e9669275cd2fea8eefa673085845475648672857eb1142447119fd. 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/QZGLM2499151.
Popurrí del Amor: Deja / Te Presumo / Me Gusta Todo de Ti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a87528870e54f6cce4a9c54833f824ec4ea629a55af7b89e1acef34105990ff. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/US7VG2591138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94fd798b3e14e11a54b4e2f1eca8d3c6ae1d5a372f3572a276860ed8f8058aba. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZGLM2478796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e5e8a4b4e982fa6603c4a191cd62525430e43a567bf3e6e9bc11fa0a9d8dc2. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZMZ92179759.
Popurrí Julión Álvarez: Y Tú / Lo Tienes Todo / Regalo de Dios