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 0x9529ef662da774549e1b2d414b25c2b526e402e8b65706e73361f5902aab13c5. 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/16f2c214-3452-4917-8afe-05021f07d048.json and https://artists.proofprofile.net/proofs/artist/16f2c214-3452-4917-8afe-05021f07d048.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El Sendero a la Eternidad (Eres Medicina Mix)
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 0x3e1bc67dd3dbe29d953c0c57cc536b5911216923c5cb6d1e2b5a5c3b651c6f1f. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZK6P2266211.
Espiral (Live at the Medicine Music Lounge)
Espiral - Live at the Medicine Music Lounge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f0d13f3706e2d7482bfdfef82c48a4ce24c20eca90cab6efef85f6f6435250. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNWT2279601.
Ojos de Cielo - Live at the Medicine Music Lounge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7cb34866cabfcc3bb86c2ae3c4ed27d199dd1930d1627afe2d68403f23c168. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZTAY2215083.
Rondin Prayer - Live at the Medicine Music Lounge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe850062eebead131f2b3dd199aa42f304a517bc71b6e100a0f9d84639e3ae74b. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZPLS2200209.
Jardincito en el Cielo (Ukelele Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd829b5458c72e6f75aa953098ee0d3d12d1ee4974a50c63a8e1fc530557906db. Chain 2 (Bitcoin): anchored in block 957730 (2026-07-12T16:41:26Z), 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/QZPLR2350881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da3a5fd3476524fd182ee894b1d99161009d74e0f4fd48ce5bd58608b8e4c66. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZFZ32413546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e11d15fd08c80b80d2021e064adff72ee638fcae41a1bd0f9d2f96f84c0383a. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/QZNWR2418798.
Déjate Querer (Cuando abriste el Corazón)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296645780a3a8424845fe52df111e00d1122b35d25bc22f90f95c07b7bc33e70. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/US6QR2400035.