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 0x051693baab90c152b5a66c286dc04b7ca6a6e397cd83e303ccc476eec6cefd0b. 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/d487c977-c57b-4625-8d11-33f24acdfac2.json and https://artists.proofprofile.net/proofs/artist/d487c977-c57b-4625-8d11-33f24acdfac2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cumbia Rocha - La Quiero a Morir / Y Como Es el / Mi Primavera
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 0xf7bc1b788b3fdec4ade7e18c5145c455995917ce8e9362635390fb498f8440bf. 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/QZW9L2331556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4ad5c4fe6ff7e63c9cd4b3f71cdf21d90b92c01ab41c59d6bf79c5e3dec280. 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/QZTPX2387744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2570568d73dae1e9d6698d3f50de920baf5ce471b3a53832b710792e9da4aeef. 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/QZGLS2573082.
Cumbia Rocha - Dia de Enero / Lento / Volverte a Ver
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb119379787dfa5184ea8c7a112007adcfe37d63e78f5928f7c8b6a4b3c5b4ae2. 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/US7VG2531553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965ff9112ce4203c36cf0abc18fe3e751ca27d88a48ba4db40b8e2cae63e5c35. 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/QZW9L2463045.
Seminare / Loco Tu Forma de Ser / Complicado y Aturdido
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4c542f96d4e8ca3397a12d26da123004f72be27d33aa7fd84b9e84b46203ba. 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/QZTPX2474341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe74930202e54430dcb0f390c5bd7e75bbc9561de0341642cae21a36852eb6e6. 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/QZTPX2435613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2c612e712e4cfc250ad36eb2e48d60993ace644f9bb8b9dfb5bd005cdb9e05. 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/QZGLM2480933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179b5ec769dff485f84be19a21654b28290fee59b23753e02c54af87dcc898c9. 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/US7VG2414357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507ce1f25366b70a44f210d0dc84e48f414dceafb8832086b7c2c4dbb24dd314. 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/UYL842300056.
Cara Luna / Por Primera Vez / El Seno del Amor / Si Esta Casa Hablara
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff1fbae3d32e17afb01bea074fe4129d3a2e539721c5ff124ea4670568e7b66. 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/QZNJZ2332143.
La Flor / Bachata Rosa / Cantarte al Oído
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5012943b966b93f411715f2c0e8bb28ba2dfc85291b146c9c38380708c35b654. 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/GBLFP2322291.
Procura / Un Montón de Estrellas / Machu Picchu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344bf9c2d032c393e325a79042d6fb1a8afd34ffb59be89f0d47cd6331924459. 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/UKXN22250614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140f87e07600027cc7df0ac66bf5a4dac841353ed1686670349f82319aedd51c. 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/UKXN22222864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8638c45e55b261b6b28b881371f1c542c782ec0b51f4867d3f7a5317002f4dea. 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/GX53U2020777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff887ecc8333438eb4e8d72a5819690afdde6339a470b71f7e8b591472d0f412. 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/QZTPX2388171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1625690510d62405dc272d2b6a6e0c432325f407f9f4d97a2deca6c4c2ccdc9f. 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/QZ5AB2145066.