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 0xdaa851188277bf483f70ed133f00f43cf49eed7fc35bde46acd73bdd0fd83397. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/70e6115e-c4a4-4ded-95c4-52bac5885791.json and https://artists.proofprofile.net/proofs/artist/70e6115e-c4a4-4ded-95c4-52bac5885791.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
KEHLANI FUNK RJ 150BPM (BEAT SÉRIE GOLD)
Baile no Monumental (Botafogo Libertadores 2024)
Baile no Monumental - Botafogo Libertadores 2024
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 0xa80405d2904756a61a38567dc49d9f68369a0f0b5dedcc702e6d7fcbce5838eb. 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/QZWFX2477675.
Ela Vem, Sabe Que Eu Sou Fogo (Botafogo Brasileirão 2024)
Ela Vem, Sabe Que Eu Sou Fogo - Botafogo Brasileirão 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3030f7f7c5b3504bbb325843d36434848e404a0b27850139d0790ab952c335f. 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/QZZ7T2449281.
Hoje Tem Gamão (Baile no Estádio Nacional)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85585e2cca28d7ed5a67327396d6e7e34801f66a3b5268ae3b60909825b4f68. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BXP8M2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838aac99efa2eb6136df26f27b2998802833cee3ca2b9a2226de90c6bd99930c. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/BXP8M2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ab39837247d1bea092a0afdb8f95599e000948433be516b79c4ece18c32e69. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BX7MG2000086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a22fe96a021fc918f0ca91f09ba5ee5d0395ba08ad1cd33321392d21d48d22. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/BX7MG2100133.