{"copyright_id":"0xe6032ceabec5eaeff88323033ff0f5dfbdd6e711e9e7c01cb7fcd0729d5d1fbb","name":"Antonio Serrano","registered_at":"2026-06-12T04:04:38Z","symbol":"NIM0181442","token_address":"0x4bfcb8ad2cf48fb49402f3094dc4be2f9e9fd44a","type":"artist","uuid":"8bb6f455-7fa7-45f1-acad-384bf4de340c"}
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 0xe6032ceabec5eaeff88323033ff0f5dfbdd6e711e9e7c01cb7fcd0729d5d1fbb. 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/8bb6f455-7fa7-45f1-acad-384bf4de340c.json and https://artists.proofprofile.net/proofs/artist/8bb6f455-7fa7-45f1-acad-384bf4de340c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
C'est magnifique (Live at the Fundación Juan March)
Porter & Gershwin on harmonica (Live at the Fundación Juan March)
I Love Paris - Live at the Fundación Juan March
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 0x3f0ee12f44b1a6286da0d8990dc524b44c54c3ee24cd73327df90aa4d9ab2c41. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES72E2100158.
I've Got You Under My Skin - Live at the Fundación Juan March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db0eede5653f75b655b4905ce773a15243fd28b8f7d69e52a5994507afbbfe1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES72E2100159.
The Man I Love - Live at the Fundación Juan March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56c4005d9b5d81c8e0c39d5e6afdd069c2128385daa4ef4f4b8f67d23dab477. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES72E2100163.
Euro Blues - Live at the Fundación Juan March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8854833ccead44c8133728f9f83ac6cd43938c45b84b453da8714f2314c031. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES72E2100164.
Summertime - Live at the Fundación Juan March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec7d8cd7d21ead5acf31520a84cbebfc859a879ba09d593d6dd733722298e27. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES72E2100165.
C'est magnifique - Live at the Fundación Juan March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f4e66e1670b717a392e210b53dec290a0e1cf0b2b6551a075316d1be3280a0. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/ES72E2100156.
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
Begin the Beguine - Live at the Fundación Juan March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9235a837cbe77b0b02ccc52707a4bd1d9f835d0206ba79fdcf46f035034d58. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ES72E2100157.
Let's Do It - Live at the Fundación Juan March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b33f08c245029acbceec98e8612e5a3d27cb403e83d338c8e8ddf19fe7c5a10. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ES72E2100161.
Rhapsody in Blue - Live at the Fundación Juan March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07df0b78b0797884fabf2ff6a24ebe11ebd5c6cb7cd09dd67765eecc1272019. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/ES72E2100162.