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 0xf58e941eedc77ee927b47b23e70d924c98182c08d6dbff328dd53c5bf4dfd041. 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/58a2b9d6-500a-400c-b23e-744227dd399f.json and https://artists.proofprofile.net/proofs/artist/58a2b9d6-500a-400c-b23e-744227dd399f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x601a614d2ff7ec5bd758babacb82fb61c3b635849c648d3f9c35cffc380d1d89. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QM3DF2126603 — a six-check JSON result.
KIMI GA KURETA MONO - (FAIRY TAIL | TRAP REMIX)
MTG - TROPA DO ROBÔ X CHAMO TEU VULGO MALVADÃO
SÓ DE SACANAGEM SARRA PISCA NO FUZIL X TOMA PIROCA COM FORÇA
METE BALA TE AMO X BOM DIA, X3REC4 ME ACORDOU DA MELHOR FORMA
Beat Sadvibes - little do you know II (FUNK RMX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1177aa1fcf7f13bd4ff81f2f81c743d1e3723422aa9181b7e2f74e3612c9b590. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BC13V2300045 — a six-check JSON result.
BEAT BARBIE - I’m a Barbie Girl in a Barbie World
BEAT INDO ALI - we live, we love, we lie
Mtg Que As Novinha Vai Se Amarrar (Hit Do Verão)