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 0x055faae6c9e9edfb15dc28649161852ac8b108ec23781f274c6dc7602a09b91a. 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/eec07b94-cb4b-40b4-bc90-2e74d4cfe35c.json and https://artists.proofprofile.net/proofs/artist/eec07b94-cb4b-40b4-bc90-2e74d4cfe35c.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 0x5401606ceaa268bc33c9f107bf9500646d423034df0e3e7ef6f99bfc53b0eca4. 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/QZHZ62071400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c66c8c1e1e9570f36036eb6efceab10a01c314580a62310587895ceea0d76b3. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZHZ62071401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d71db0d6f66758d82ae13e41a19963db6ee11ac9a39c16b27c588e5917bff7. 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/QZHZ62071407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76e966f2fd7c29a54f793ce2a674947aefa9c755230d3a9272881faf0204616. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAGB2293817.
Música Para El Alba / Danza De La Iglesia (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f617603c9bb555f895d8b48d279cca386823e7d24bf690bce9e971c1bb6a4c9. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/TCAGM2267925.
El Amigo Chelo / Los Diablos / Danza De Las Mascaritas (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd99e25e7575f5fa1cf852391968809ef76ae0e0e20ee182fc6aee62c49bc3a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCAGM2268076.
Son Victoria / Son De Los Tlacololeros / El Son De Los Viejitos (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83f2df040cbcf6fe0017cc90b367cd9ea31c8a149790ba63e0cc9f70c50d3c5. 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/TCAGM2268087.
El Burro Loco / El Amigo Chelo (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd59cb5b3d38949478540945afc7bd1ab54071b6746e57265fe01dcf8f1309fb. 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/TCAGM2268108.
Cuando Volveras / Se Muere / La Media Arepa (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c81b61e956da52d117d81a0bd3f09703ec8a622e6010a2592359dd89d45df8. 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/QZDQH2379258.
Musica Para El Alba / El Burro Loco / La Mula Loca / Son Victoria / Son De Los Tlacololeros / Flor De Piña / Son De Los Diablos (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb364957e7be2d830e760627b40df63c55499d301907665e629fd6e53d3137b6. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZDQH2379260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe730592a72fe162429bb040a9e6e1b13f8adf747642a9e009525a1b7a51fdba4. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/TCAHJ2366100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f50ba1a69e137302c3a1be689900db9b71c111dce6ee632f5bd020aa892dd36. 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/TCAHK2385751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a345d20605ed2e0c88153ec3bf0500ff3f409f94620a2a17f173cd304e8dda. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/TCAHO2369756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1620924fce23b1b3f3a16db5f9106bde0a2393b56a492e44cfa628fce51b21e. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/QZDQH2411874.
Titanio y Sus Amigos Presenta a el Compa Sebas y Su Teclado (Live)
Son del Sax / Son de Guerra / Son de los Moros
Musica Para El Alba / El Burro Loco / La Mula Loca / Flor De Piña / Son De Los Diablos / La Calabaza (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fb1da7ee6529584c1dc1fb8ebf013813760b07c865f97b8e41f330715d3d73. 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/QZDQH2437668.
La Piedra Del Arco / Tonto Mi Corazón / Pasito de Orbelin / Son Victoria / Son De Mi Costa / El Gavilan Pio Pio / Ilusión 98 / La Pobre Viejita / La Culebra Gruesa (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6444d90bb1abcc8fa8076dc6ae33c06a5693c656a151257dae9c90c8d0d9acad. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZDQH2437670.
Chilena Pinotepa / La Chilena Bélica / Las Amarillas / Alingo Lingo (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf0da092b61d6dba8fb87406829be8d3f17aef214073ccdc5442a985e9b078fb. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZDQH2437672.
Takon Madre Presenta A El Compa Sebas Y Su Teclado (En Vivo)