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 0x32cfd733179b57c5e39fbcacf1bd76a040e176625ae87bcc2319661d00e7d3e2. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f802fbff-58aa-4f63-8271-0e1ceda3ae34.json and https://artists.proofprofile.net/proofs/artist/f802fbff-58aa-4f63-8271-0e1ceda3ae34.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bom dia, a tropa do B.I te chamou pra Piscina
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 0xb45577fec7e986fd2d7bcd79a583f32d3a32ab853fd7a0e8474998533ce98f0e. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZS652160238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e1078c3a63df9bf4653613accaad3e6d079893ee096bba399f1160bbf4cb96. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US3DF2226373.
MT (SENTA SENTA x PORRADEIRO NA SUA XRC)
OLHA PRA CARA DE QUEM TU QUER DA (Special Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855d28b3a75a01593abe80cb349a49d23eeefc1831401670f65c8838564a14ab. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T19:24:15Z), 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/TCAHK2378432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1d4e3f08f492b548fc7ac07842f195869e63f078bcea08ee865e0387519f0b. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/TCAHK2377555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459103e60e3cc4e5db1fa1df124aed68ed3ecdaafc1cd2d2373650593f4afef2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCAHK2377585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b275ec453b4062789e27f0780258cfeecb581ef61506cb53cb8b6de7a48540e. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:03:10Z), 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/QZZ7X2536347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbccb10f3c379f71de7588807fefbbf4c109d4e726cee3c588a4c910a9879d6a7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QT3F22501362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc47ce44507584d4cc75c67f93b909f7e797268ce0284130ab0b2b8802f9fe9. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:07:38Z), 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/QT6ET2503014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91da6b611d0f208d862289334eee341d4f048d1f7bda09e970acc78b8619d15f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BKAVO2200214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe459988ce702c49eef3bf4d7fa65aa11a19c4f5123dacc164116b34fa6c1811d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BXNT62207768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca4e164f85d5414a1e9f542d616ce31219f2c2e5f81ab0e8bd6d75701ff8e6d. 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/QZMHL2320911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a28f4d73b06d2a61f23ef95d1600b614b380b7a724c6967efbc4b364e5db9d. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/BXIV82428571.
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