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 0x6fb57740d7371d5d93a9502aba50c3c20137e5c0fa2f8b37478a5387001de5dd. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4de4f88a-78e5-47d6-aceb-408b630790c1.json and https://artists.proofprofile.net/proofs/artist/4de4f88a-78e5-47d6-aceb-408b630790c1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
EL PAYO ERIC: BDP Freestyle Session (ProdByTytoo)
NERZE || BDP Music Session #3 (ProdByTytoo)
KMBRA || BDP FREESTYLE SESSION (ProdByTytoo)
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 0x1dacf63ecd57bb68b57939d92a206763646fe33b1f6b5ceced133e734f70c307. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:10:29Z), 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/QZHN82267954.
ALVDESC || BDP Music Session #4 (ProdByTytoo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cefd3732c8030f34268de0c24c82a7cf5a825c5ddf5835200d285235fd80aa8. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6P2266074.
GIS || BDP Music Session #5 (ProdByTytoo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8adb03d1e3a98743dc1f0e4d6251b30351f8a4b8b8227e5a842b30f20b2d942e. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZNWZ2297783.
PETIT EL RECORRIDO || BDP Music Session #6
SOROA || BDP Music Session #7 (ProdByTytoo)
DOBLE0 || BDP Music Session #8 (ProdByTytoo)
CYPHER BDP | PONCELAM, GIS, JOW, SOROA, JENEY, LILIZZ (ProdByTytoo & Poncelam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7364a8bdd685c87e0b3821c5c4a32431a487030ca6cad31edc57f07415b3851. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QZFYY2407342.
PGJ || BDP Music Session #9 (ProdByTytoo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fdd6ce16faf4455194b52fe6616074ee4af023fcc09ce0c54f2ded46e3d53b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZMEN2499622.