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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13603a062c99a29be47a320f3245c34d8883644f89a6ec2f307403c6640b400b. 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/d223c0fc-d9f7-4a57-b794-9cdd93732037.json and https://artists.proofprofile.net/proofs/artist/d223c0fc-d9f7-4a57-b794-9cdd93732037.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Catorce Cargas por la Libertad (El Tigre de Payara)
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7e51bf391fd135c93d080c1ed534adc31674a5833c708e96f981a3ef7517c7. 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/USZZR1012419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e5ce6d1371e423b1e91a899e093e6804457621623fef7f5248d4d9449bc0c1. 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/QMDA61595518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5bf2b012cd18168256f9ba30092339fd30803b2b8d37ebd0feb7b9aeff998a4. 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/FR10S1657685.
Cajón de Arauca Apureño / Sentimiento Apureño / Mercedes / Mí Amigo el Camino / Chaparralito Llanero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90fb6bf587dd904a00c5f10af04c947016fb103a232b53841710da2cc1683de. 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/QM6N21801192.
Brisas del Torbe / Nostalgía Andina / Preciosa Merideña
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fc0a0aaa119ec02ab34b603580d0a6f72f6aeae9173d2adb96e6fff2ce5502. 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/QM6N21801195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262a6247f4e9361bd2771a286b961a6254d033066e7284f933fd8ad135db9b80. 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/FRX282123622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3aa83fdd8c82b935faa4168c5343bdc99dbffb559735c65d5ea9be012ee94f. 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/USZZR0913014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0bc903c64a233fe85eb1e5dd4c3b7b8ecd2b3c5dcc3246103d8ae2136469497. 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/FR2X41619212.
homenaje a los grandes /Vamonos Vidita Mia / Lagrimas de Amor / Triste Final de un Amor / la Herencia del Canoero / Mi Lamento / Romance Apureño / Como la Madre No Hay / la Muerte del Canoero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f74b601a328810a209c78bc2c0f6537acab3ca0620072a21ade67b0800e4e7c. 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/FR2X41632666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5574ec5fe06f2353e636dae2573296ddd3f295e8b81e8539859a10b3d850a796. 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/FR2X41632672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8951ca9e313b03dec48c976d1b13dca871f99dea339f52992eed36551688b0. 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/FR2X41632675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b6e9b38c8c926b4d50a59d119bed0fb7a9c8042b1d254911373f36c81128a1. 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/FR2X41632676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e630bf67cb6212e86dd178887f3875c6792c32f54b51bac2f3e4527e113b107. 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/FR2X41632685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5faf5ffb9ca0d8ebf6d05023c2dd27cf131fa1cc009760f8ffb0a3a0bea11633. 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/QZZ972497770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988ffb3ac1ad7de442ba1f1a155466cbcbff3a3fb339be49cef80159ce72bc97. 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/SE5BU2222082.
Recordando a Grandes Exitos Llaneros Vol. 1