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 0x1443e3e91d4c334bb787b1a0debbc1606578f8d9864f224c30d2f25799ef77f3. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/54935b85-16ab-4c26-a37a-db9dbb707825.json and https://artists.proofprofile.net/proofs/artist/54935b85-16ab-4c26-a37a-db9dbb707825.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Piurry Malon (Mas Malo Que Lindo) 937 Studio
Mendy Lomi, Menol Lominero (Hoy Se Singa)
Yojan DR, Maicol Lomi (Que Se Lo Meta) 937 Studio
El Baron Pose & Miguel M (Dite Algo A Lo Loco)
El Baron Pose, Kkvsh (Dame Lengua) Prod, Maestro Keicy
Chombo Panablack (CAPEA EL DOUGH LOMINERO) Chikito Rulay, Mendy Lomi Menol Lo Minero Piurry Malon, Junior Fresh Menol Mc [BARON RECORD PRESENTA]
Chombo Panablack, Mago El Insoportable (ELLOS TAN CLARO)
Mago El Insoportable, Yompi Mc (Lineas Al Aire)
Mago El Insoportable, Yompi Mc (Se Adueña De Mi Vida)
Mago El Insoportable (No Supiste Esperar)
Mago El Insoportable, Yompi Mc (Me Vendiste Sueño)
El Baron Pose & Miguel-M (No Me Diga Na) 937 Studio
El Baron Pose & Miguel-M (Alo Toy Al Aire) 937 Studio
El Baron Pose & Miguel-M (Yo Tengo Un Jumo) 937 Studio
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 0x79006d99a04b129cebd9513db26e7ee4432afcf887023f16c9153b8b9edbd6b4. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZZ792460767.
CAISER AL ATAQUE (LA HISTORIA DE LA FAMILIA POBRE)
Yo Nunca Me quedo Atrás (PLAYERO JAMAIQUINO)
1 2 3 Probando (FRESTYLE VOL 1 EL COMANDANTE)
1 2 3 Probando (FRESTYLE VOL 1 | MANDRAKE)
1 2 3 Probando (FRESTYLE VOL 1 | CHOQUE DINERAL)