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 0xe1355060210973850d2df5a2cb0da016d98f14420ae6642e2b0762c4010326f0. 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/ba2b7412-e701-4a0a-9977-4f39aa10bd11.json and https://artists.proofprofile.net/proofs/artist/ba2b7412-e701-4a0a-9977-4f39aa10bd11.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tu Com Bumbum Maneiro X Tu Ta Com Peitinho Maneiro
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 0xb1415e7ac03792f03fd6455b06b10e7bd499e88d2109e3a89fe72b0c61f46d13. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZW9K2283079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee857d0a254d6ed9efb480588013d11f6afb42485cfc41a2f20eff17e557bbcf. 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/QZNJV2237701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368a6603e2ad0b711664104b456a55179b3d977ac8004076320aed004fc58ec0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BCNEW2100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9f6e38e89f1320bab125e2535157da174a66b290b1086e10ce9990f24e434f. 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/BX1KO2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1a5ca2cffc48fe7d62117db653c0bb25a16dfa0ddbffdfaf0b2c65380c49f4. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/BX1KO2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4325a87c72db2bccb2928eebaa5c6879117b11a9dcb4c5c7c82f55ce520a1e96. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZEQU2036127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5814616c341d22ff38677d282a9e065469cddef28504f09ab351973a6a4a3c. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QZEQU2034271.
Deixa a Fumaca Subir no Baile de Santo Amaro
Deixa a Fumaca Subir no Baile de Santo Amaro (feat. Dj Fernandinho B20)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d4e1115cffbd31054e2e006d5ebce6cbd231baf66f537843b71f31b7e8d4cc. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZEQU2026765.