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 0x64fac49c4bb88a7476805b510d9f8f988d353b9afbeb9ddc0cafbdb4504eaf4f. 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/597fae2c-e2c8-44bf-b4a9-7ff214000b13.json and https://artists.proofprofile.net/proofs/artist/597fae2c-e2c8-44bf-b4a9-7ff214000b13.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 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 0xf234d56d77e348cc11860e2284f302c1198e476e29bd489ad0154e2c0c21c3e2. 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/GBSMU9290202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fad320118f5549e4cbd2a06a040f26c5ac15be365a29b65f5147c22961251aa. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/GBSMU9285887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac1f162dca54878d954d1a3945be2a5048e0c86965de483252bbc325e358c03. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/GBSMU9285888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298bd617ba89e17e775ea57df5fba352d94b99db02014fe5b9d518dc449e0552. 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/AR5UH2400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0bd3cf0aa06a80a3248156659656b0adcc6c1a487e13bfc33e43e3a94ba4272. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/AR5UH2400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c635f5c8f97b3ee5884f5b44e68d944937343cb26374ed0a1cf931cb3223cb. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/AR5UH2400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0faac3e6fe2e0a87a80994fd129a771ed149ba1b69534a54b9f958ee9d36d73b. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/AR5UH2400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0882b3168fd3f063367ea92c1c9acb280f1bc5eae1e6d982b5eda776df969b7. 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/AR5UH2400091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa965223ab1d9af4342da0cea2e67ce6b560c4415ec1a2a1bbfa7e93bb34b1b84. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/AR5UH2400092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3849fdbe567f0c63711d8d7beb986a85e74bf3e936a1d3ee95c9264bd57421. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/AR5UH2400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b3df1a08f3aa4198ed8c61a7ec8af075381b9ab89bdeb174fa3eeb4c204a98. 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/AR5UH2400096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d470976d87e96cfddb1b5f35c7be975c4d5c7f438dcf7a6a72a26e89951bc3d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/AR5UH2400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4940084352c51a728663a403f3b6f68500fa60ead2068f4fd4a7107be76af8e6. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/AR5UH2400383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74af9f5010323e53685a99318a8e4339bb9eaa414f448aea2d19465c05f2b079. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/AR5UH2400552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9eb8e337d212c784b860a433f9539ec03301b987d1b3a400018f0e8edfc5bcd. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/AR5UH2502395.
Session Live Grandes Exitos Vol. 1: Engañadora / Muchacha Sola / Doble Vida / Mujer Maravilla / Exótica / Costañera / El Macabeo (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6676a735a5fcbad3925ae35b57df92af4f2f5b49a80c7ab563d3ca1028276ef1. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/AR5UH2400658.