Leonel Sawasky y Sus Diamantes Vallenatos
{"copyright_id":"0x50681eae9dca2fb6ab7b5b52429bb95bd2352217f3ab3ac647f77ea25ed25f76","name":"Leonel Sawasky y Sus Diamantes Vallenatos","registered_at":"2026-06-15T05:46:16Z","symbol":"NIM0700682","token_address":"0x434e505ff7b658e234bfd5edcdf984768997dd14","type":"artist","uuid":"f02cd27e-c92c-47d9-87ee-0ee0dba8135c"}
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 0x50681eae9dca2fb6ab7b5b52429bb95bd2352217f3ab3ac647f77ea25ed25f76. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f02cd27e-c92c-47d9-87ee-0ee0dba8135c.json and https://artists.proofprofile.net/proofs/artist/f02cd27e-c92c-47d9-87ee-0ee0dba8135c.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 0x78462cdbffe8b2c4645d12adc90f223fd298a59b2f35519176156e2a2bfd97d1. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ESA012229912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ce81bccb0d10430f08366539da109f1792a7042661aea77d0463711e440986. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:49:16Z), 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/ESA012229921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78462cdbffe8b2c4645d12adc90f223fd298a59b2f35519176156e2a2bfd97d1. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ESA012229912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fc2f5f8aa93afc359e78db95ce96d581569b4e3269e9d67bbb1c39ca74f078. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/ESA012229798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fc2f5f8aa93afc359e78db95ce96d581569b4e3269e9d67bbb1c39ca74f078. 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/ESA012229798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0198a2e6fd26124c8a7704211a344b3d25c63b1ce19146a633d6960468b096. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ESA012229801.