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 0x64f5516e3ac5cf9ff508f1dc60765082058ff527766ec2a6cee321d328458061. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/79d13f20-94b4-4a36-b54a-b1599e5edbd4.json and https://artists.proofprofile.net/proofs/artist/79d13f20-94b4-4a36-b54a-b1599e5edbd4.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Perreo Old (ELLA QUIERE HMM HAAA HMM VIRAL TIK TOK)
PERREO OLD 03 (PAM SE LA CUELGO A LA WACHA VIRAL TIKTOK) PERREO | BOLICHERO| RKT
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 0xf70cf64248ea5615ffd9acee11efae342eeb5dc307774075bc8288cddd11a04e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFH2455524 — a six-check JSON result.
PERREO 3 AM (LAZZO DDJ x TH x ALEX PRODUCIENDO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f0dc2317500d377f3799547a4dad2380a241e1c6abf5650a26239e1cff989c. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7T2465383 — a six-check JSON result.
No Quiere Enamorarse (Guaracha) - LAZZO DDJ
2 Peine R$kT - (NACHIITODDJ & PACHU DDJ)
INTRO EN EL CA$eRIO (LAUTIDJ & FACUU SLK)
|| MeGa aKaPellA 2 || (feat.Brian Deejay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45a28f43f943e56c1a489dd457fce08a9d0bff07ffe2fc6fd59058a48b73ee8. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAT2558954 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b44696a4476f2236301037b2768afa83a870565c6a3f1ac69cd4dc8526d4b5. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7K2546131 — a six-check JSON result.