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 0xf33e6738a185675bf00456c8516852a10d082befd6b0211ad7342e32e90b0e16. 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/03a4a063-e6aa-42a9-994f-3971597a0b22.json and https://artists.proofprofile.net/proofs/artist/03a4a063-e6aa-42a9-994f-3971597a0b22.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 0x7643f197bbdc4e0cf3d3c7970a8ad0d68e7ae8b56c5080d5a8a219391c186bf0. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/USANG2210963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c60364db69b875f90aef6e6c08f9332cd7dab152be512c5334f1f5d8c128d8. 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/DGA052306843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41bfddcd35cb68a04f9832a218df6530dccc04f5428151b6dfb02ce42de58f3. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DGA052306844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c1f94c9549503be4615c179b02fe7511d05695a4dbb3a79c92467c2a735ea7. 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/DGA052344779.
El Lobo Y Los Rayos De Chapotan Jr. (La Carga Ladeada / La Güera)
El Lobo Y Los Triunfos Del Norte (No Me Importa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39cb40da1b4a18996b25e524eaeba7c0b14a039fa604c033706077261b26e8fb. 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/DGA092310902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c60364db69b875f90aef6e6c08f9332cd7dab152be512c5334f1f5d8c128d8. 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/DGA052306843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41bfddcd35cb68a04f9832a218df6530dccc04f5428151b6dfb02ce42de58f3. 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/DGA052306844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888f59f262dc12bf7780230ef3073e7dcd8e78990e4c87e49a411296e0ef320a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DGA052306845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc0c23a084d61e3a3eaac33932f278d7830c2299eb1c48ca954f5189eef535c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DGA0L2349558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41676047c204c677aaa6160200aee9e30e938ddc22c2b215ea1de4cf7243f7ca. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DGA0L2349559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414de5d7f878efc8e25961d638acaf0b5e0c65fd80cc4507818dd401e2070df7. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/DGA0L2349560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7552cefe82307e5d9dc2f3e8ad17e82594cf4ef66c3e8e51471d438b363adf. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/DGA0L2349561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c1f94c9549503be4615c179b02fe7511d05695a4dbb3a79c92467c2a735ea7. 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/DGA052344779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6776e13093867b3d215877b546000ba933f4bca934da4269e2353a880bd0af93. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DGA0L2349562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ea39584205b3ad7480e486e0cf9287a4f15612deb10f7dfc3e072178331fec. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DGA0L2349563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3994c26ae9ed4f378140d577784d9fb9ecc8d1d2b05c8a5f7c0f49e6ce56f6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DGA0L2349564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9426ca578a2531b9d736e8170c4eb8d52dd0dba25c0a408e22cf20fb2e1d659. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/DGA0L2349565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8400eb501e74f7d6ccea46cc5a68f103abf1192bf7f284b9b6829c4ba0230a6d. 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/FR59R2498786.
El Lobo De Durango Rumbo A La Rosca (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf015332fdd4823451c826fffa41a93a119bcb8f3229e40811230c6fcf235398f. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/DGA0S2429270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ca94ee5fdb6b72162e30d3780fa149872d05a885ce76795241adf751c5a5fe. 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/FR10S2599846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3746e05b27c20e41953ecffd27d25cda0d12d8aa2aca3181f26e9bba810c7b9. 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/QZDQH2421671.