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 0x9f2ef73b9d058dbfdcb3e3803297f513d05007bba211ce5e840ad1649937afbb. 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/ea9031ab-db1e-49b9-a5ad-1298c7652c22.json and https://artists.proofprofile.net/proofs/artist/ea9031ab-db1e-49b9-a5ad-1298c7652c22.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 0x997460d0570fec11148cb0c8d208b9567ab5314d235978b3e0848959938fe3ed. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/GBSMU8346840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842036814d660b7fd45efa7b79a4640aeeb003fe2a808aab81dcf5bf1aacaec7. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/GBSMU8489949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4e2fa1744710c9a800a4b9401e54bb230a9f9c28eae184db04674f83625923. 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/GBSMU8489952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549d9ce93799c11fd8dc0fbc31a0498f43b96cc396b52268e0f2382426c6d8fb. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/GBSMU8489955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e517e4bf32666af49cb6de07154c95ed83a9360f09b2f8f63ab8527b399084. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/GBSMU8543891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f58c5b0c9b3caf9b4751baf63a53fc68118662563f349a7eccae8c0c5ac626. 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/GBSMU8543893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca8688f5e9799d488bae04afb7f274eba8d3225a28443a11608624eb8d456db. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/GBSMU8543823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c6e30ea5e0536cfcc3486ee45fd8e45a73fb6b727ded85344c4cb3203e0af0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBSMU8310971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e4a384d7aacfc4bf226a26455c1fd12d1ce6b6989d6b46417e26dd1bc43f92. 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/GBSMU8310975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc26172a04d086d6e16a7942d04e938f7d2eed49899db8eb143341789e14f12. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBSMU8310979.
Cantos de Cifar en Vivo en el Teatro Nacional Ruben Dario (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14960094983164fda88bef97d1e2bb03a0dbd88e5025341827c1265ba5161b6. 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/GBSMU9351080.
Aunque no hubiera cielo, yo te amara (Extended Play)
México Se Pinta de Luz (Only for Streaming)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1b0ff938205f7a02a3b27a988f4bed0319f03a1543ae64670b785ec94546e3. 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/ES5117700038.
Cuentame Como Paso - La Generacion De Los 70
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80db35af4638a2c1576e65b7d104fac9fa9d2c581c824bf5d7e336ba84d6041. 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/ES5117700035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80db35af4638a2c1576e65b7d104fac9fa9d2c581c824bf5d7e336ba84d6041. 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/ES5117700035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1b0ff938205f7a02a3b27a988f4bed0319f03a1543ae64670b785ec94546e3. 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/ES5117700038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3313a8fc6479acc47b88187ed821fd2e6194d540bd244910614e94e62fa89ca. 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/ES5117700036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba21afc9070edd5429e3f580f9914f2ab55472d3c0698e77f17197339aa5342. 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/ES5117700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae25f1dce9171ddf17f91eb29c030b5ec70484dd7ed53bfe9ba8cb04bf04f6b. 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/ES5119902944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e4aaea6471ffc2e1861bfc35e559572c0d866a09c106fb34c63142c8d2a2fb. 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/ES5119902435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560daa9cda457085584e13118d550ad87babea9ce828f80abec42a0831e1b24f. 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/ES5117700040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069a5a2ba427497af3fd15516d1d7322fe3ae1db75b4bba419c37588f778630d. 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/ES5119902431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26f0391f1bf6a24a25977336de9d559a61eb01e3aeb6237fd8379ddbb95eca0. 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/ES5119902438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29bc96e7262064dc07a27fc0f82aa44ce34068f9e6ee0a97b7a82f035aaebf0. 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/ES5119902441.