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 0x6ed9ad01590238793942dde1341365526e948a0ad5ccccc5ae670ecbafd0a987. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fce04bce-99dd-4dde-9819-194cc1c5b744.json and https://artists.proofprofile.net/proofs/artist/fce04bce-99dd-4dde-9819-194cc1c5b744.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x2aadaeb199339f64295b8de8f3c0d742fbddc02e031f431377cdb4becef1c445. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZHZ52041138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0027b272f02f1a26c8550f2c69dd32f1eacad2595852a2d0400b2b45e723ca29. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/QZHZ52041140.
Ángeles De Dios, Vuelan Los Ángeles En El Lugar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30456536e04a9221ee5d897c78a2febb4c3daed4d0f44e0ae49cfd1b657f43d9. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:41:36Z), 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/QZGLS2005647.
Momentos Especiales, Hay Momentos (Acústico)
Hay Momentos Tan Especiales Junto A Ti Señor (Acústica)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03701910ee503f1da791bd628d852b7d40b02dd9f37374bfa64b786c8f4aff3e. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZQAY2133955.
Que Canten Los Niños (Feliz Día del Niño)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605c79bee6ec9e618d8d71d8e80dba3c9b8290a2a235c697d48e9d87622dea58. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QZN882294112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d9bcd79f773eee8165c9f787f26190ca4d1fb33edb77df70080757685b811d. Chain 2 (Bitcoin): anchored in block 957633 (2026-07-12T00:19:47Z), 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/QZTL92190171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c246436de6071098ac9bfdfd2d21cb2c8f7561fdaab5187578da1f10783f437. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QZSYP2150514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57c97b6147dea0ffb5ca593f4292990ad8c8c0bde562e09d39cb7f1c48fd5fd. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZN882344144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ffe6024a16252437a15d241b616546542f7f9e369011a50a04c882141fc82a. 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/QZN882344151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae7edeea3fcd77beed5a5a9a97ad165bf5e7fba300f06947f73b0d6b1057bf4. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:09:31Z), 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/QZSYP2127870.
Te Vengo a Decir (7KINGIN Live Sessions)
Te Vengo a Decir - 7KINGIN Live Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9dc2f659343d1babead68d5266b69f125e58e3f3f33d38d48589308d869c68. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZN882385001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d43fc2979933f225763cbd242fc87a9a6ed7dd85f19d31a64b9173e144fe46. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZYFZ2370386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33612348e54866849c0e0f9b8ca32d9a376244a500d305451400d19915f1da91. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/QZYFZ2370387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3540d21d1e2ecf2cdcad03d08827f23183c0db0b795c3ba73522f6cc0881c81. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZYFZ2370388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dee1d954b6ab75f7095eda21451529b9b3c9a8e51476796b8a917eca3af3c11. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZZ662410528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03e00c595ac4dd17f655101d4cd9f4ef922af136be67554cc6570faa08d6293. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:33:32Z), 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/QZZ662410531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe4bc7a6c53bf4dee15e65d9bc4d1f0e3f0e0d683ffde224b258ca5874ebf5f. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:08:59Z), 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/QZZ662437651.