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 0x6ebcfdc727b442c157b53d42813045dff04efc3be78207b1ea92c46d813fc718. 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/c1935ce5-b06c-4163-a023-0460442a96a2.json and https://artists.proofprofile.net/proofs/artist/c1935ce5-b06c-4163-a023-0460442a96a2.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 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 0x8da4b0d3249430beaff855d057e58b6c8ac660be239e06fce0e5a130643d43ec. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/FR96X1716405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9b977ef360839e563c2d032cfada8dab49f172a463ae531aa3e28f29d899af. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR96X1716408.
Esto Si Es Hip Hop (Instrumental Hip Hop)
Menealo Suave (Instrumental de Regueton)
Orgulloso de ser Callejero (Instrumental Hip Hop, Rap Beat)
Melodia al Corazón (Instrumental de Rap)
Los Recuerdos (Instrumental Hip Hop, Beat Rap)
Freestyle Con Estilo (Instrumental Hip Hop)
Siempre Loco (Instrumental Rap & Hip Hop Beats)
Ser Vero (Instrumental Rap, Hip Hop Beats)
Poemas de un Alma Rota (Rap Beat, Instrumental Hip Hop)
No Hay Amigos (Rap Beat, Instrumental Hip Hop)
Lofi Melancholy (Instrumental Rap & Lofi Beats)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8296578186f21d06973f386c96479e846728ddcdeed4a6e7273e1cd69497e228. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USANG2019152.
Old School Beats (Instrumental Rap & Lofi Beat)
Fresh (Instrumental Rap & Beats Hip Hop)
Base de Rap - Between the Letters of Affection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0c9d9f379d43c1099a29e9ea892d92d84e1d64b646aac080b67acff1e24021. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USANG2494285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5c861e8f3514ffba1512bc0b78d47d05364949504b4a0ebb534360710841e8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USANG2494286.
El Rap No Termina Nunca (Instrumental Rap)