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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18922f9c1b2d147b27f814d7c20ffeedc8ccd1027f3167364711619eeedea03. 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/0a4dcb1a-cedc-41a4-805a-cee73f0e5143.json and https://artists.proofprofile.net/proofs/artist/0a4dcb1a-cedc-41a4-805a-cee73f0e5143.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f9b1b1f0e64d1ab90f07085f786a649428b109e1e9811efc54ddbf4e54017e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU2117549.
Filhos do Som (feat. SEST & Bárbara Leão)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd241ab04d908bc14a462ddb9500e9480d787114a7445e3635b5aa78b831812e8. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBKQU2254321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4cab93caa61eb6ba5a86b6f0465bd498e409d201dc123c15dd4f13ee80d383. 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/ZZOPM2108632.
Butterflies (feat. Tristan Henry) - Biscits Remix
Butterflies (feat. Tristan Henry) [Biscits Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadee2c5657416dad2b31958c98c202be83538bf1c587382cd15a0bb99ad64d94. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZZOPM2110987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4cab93caa61eb6ba5a86b6f0465bd498e409d201dc123c15dd4f13ee80d383. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZZOPM2108632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4cab93caa61eb6ba5a86b6f0465bd498e409d201dc123c15dd4f13ee80d383. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ZZOPM2108632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275a298cf24a8727233ce430448e0ea1365fea92f1a40cfad598b6a3985f7ddf. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLZ542001652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07350041880a7d3ed57734fd2bc5b8c1ee4fa03500334419a5884a333bd72ca8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BX0BA2200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434c641cc1f1a8092320e879fa902c8e81f50a10a662ebdf9aba6ea7fddd7366. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BCCNG2100122.