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 0x1fb46be423310f023d9e1c3479d1ceb5b56a7f709ca83340b578d207b8a7f460. 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/997739a6-4c8a-4e63-bcd0-cc35c279bf26.json and https://artists.proofprofile.net/proofs/artist/997739a6-4c8a-4e63-bcd0-cc35c279bf26.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 0x5c81dd6074c6da65d6f9fac3987a883fdc8bff8f6dc9feea66f86d77c2a15d86. 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/USDY41753678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b56154f48a7d63c93075c5454c0b0aa5b6b87c718bd164028386111966400a. 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/USDY41753679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889e9d04f79fdc3e17d354b022af93efdc38281768bc03c0ad0d87c5f5479fc9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USDY41753681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a6b33ef295fdc3d5bc7ceeaab17ff29e4e22ced98d3affd4032ba2dd3783f4. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USDY41753683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab2ec53b2756d99a63c3dc5004cf1e1d9b48156dffabe4d05529c41ccfbf9b8. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCAEM1911941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc055a00a5e540b968aa413fa223e13b8080aac63310222e73e6703ed267a4880. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GTA112400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a07825f41f1e77355f6d5bfae5403e62559643667327af9470aad9f9a2764a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USCGJ1426999.
Buena Vibra (feat. Ale Puga, Yessie, Sunday Funday, Pedro Cuevas, Hancer, Stephanie Zelaya)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8f9afd683478f36281841d7a85b63cc24841283f7b1ab324625fe7d26c86d9. 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/QZ7R41951855.
Fusión Tropical, Vol. 11. Música de Guatemala para los Latinos (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84298da57a6830b8e1713aefa907c8cb45c89ef2e4f045721b7d74a18e1ee351. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GTA011901649.
Chechamix para Damas # 5: Otra Ocupa Mi Lugar / Asi Fue / La Loba - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39191ac0327abffbaba0deb4b190e5697ff49cfc26efcc5198a959602432b4f8. 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/GTA011901651.
Chechamix Sabrosas Cumbias # 3: Aguita de Coco / a Mover la Colita / Lambada - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5545a50dc9eed6d912d7a4933b4e98af72a97db10b47d6cf5e2f8c453538c47d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GTA011901654.
Chechamix para Damas # 6: La Cita / Ven Devorame Otra Vez - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75425cbd133b5e3290d98d38eca0d29f2f2269907acf9fa16ebfd20257aacbe6. 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/GTA011901657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc643a31b49f4185c75af30681436729c1eddb3761bc5ae2214c76f6647e02ccf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GTA011901659.
Fusión Tropical Única Vol. 4. Música de Guatemala para los Latinos (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4305075defd8098e1fe483657ada240d2392c3b1cda3fa3697e8be4466f131. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GTA011901690.
Tributo a Wifrido: El Hombre Divertido / El Africano /abusadora - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72fb5f3cb56d9d8e770fe519689cc09f2197be7679bba68cc08f16e166551af2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GTA011901696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f63d9534a3718fef1e3086c0acf64418b97e5206e835ceccaa85b3e3b32ec4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GTA011901700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140b46d46422928cb02f68b6ea8b890696dd95948d41c0c6eaafabcceee706c0. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GTA111900021.