{"copyright_id":"0xffd28adb5fdf507e6d2f9258ae5cefc4a43c3d2994440723512f5ca065df9fb0","name":"Carlos Puebla Y Sus Tradicionales","registered_at":"2026-06-12T08:56:08Z","symbol":"NIM0248693","token_address":"0x4c2d9695ae1ce6733bad7b7cf9c0dbbc4fd1276e","type":"artist","uuid":"c069c683-30f1-486e-b0bf-d34dfd671f55"}
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 0xffd28adb5fdf507e6d2f9258ae5cefc4a43c3d2994440723512f5ca065df9fb0. 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/c069c683-30f1-486e-b0bf-d34dfd671f55.json and https://artists.proofprofile.net/proofs/artist/c069c683-30f1-486e-b0bf-d34dfd671f55.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 0x17d7a2e8b3dc552a67f93b0772c837e9adfa120071c539664350f0dd08e07d28. 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/DEXN82257908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b95cd9234300de3046aed043cd97b6fad9bf95c2f140ff5aa86c0ee54fce735. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/DE1A12182836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8249df14595910942f2ed9d34eaffd7a13a389c0c86c77994d64d4abdc597e79. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DE1A12182815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682d10396e857d240d47b52b3e0dbb38f17f64fb8250e2fdfbdfa2543ab54fa3. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/DE1A32127834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73638dba726dfc078eb212a2dc4f068e439f23d21c3c6f2cd96a41f165e9d3c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/DE1A32127836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb680e9eb21812e5c95b3f2e9112d9d36935a1e610cb431f170c37e01aa46c32d. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:20:37Z), 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/DE1A32127838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde307de83f5be016add77354079329edd1aabd1c28be3a0f635fc54623f1cba5. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:07:58Z), 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/DE1A32127841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488e739f50d103f34877eb227f10e5be8cf2234344e7385df7453ffedad3c8ce. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DE1A32127842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ebf01a5009bbe2b01a2f06b46b0ea7d6ec49d967151faf95e2b4f8cdeb4411. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ESA011306067.
Carlos Puebla y sus tradicionales: La Caimanera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c28f00638e8401399217d42a9d21f328d42904c06d253686de69e7d8e1b264. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USB8U1064329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b013b915d72d63c7d4e73a45683a5d85281500a19ad4ab73e8bfea597eec620. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USB8U1064331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3899556cec45e1cc57bb5002f8bd90e0ba0d1313ddae734573132f3b660346. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:07:53Z), 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/USB8U1064332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d589e169c4360e58444af8bffaef6f0cdd87d9071744baa21faa8e8810cf12. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:58:56Z), 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/USB8U1064334.
Carlos Puebla y sus Tradicionales (Remasterizado)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5382cc74af07028b975fdfe70c565e86c8f777150688e9a0d8477b6834898df6. 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/DE1A32127735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6d40ebf0c96f0ac31e795840e714fad77aa7a4f85f90fb93ef2a339c97bddb. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/UYM123000354.
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