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 0x5ce95bd77b9543384c7c766210b6046e918b9d86d8e9e3369bde734de138db99. 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/0fec51f1-d8a8-4829-ba04-c9915763a6d5.json and https://artists.proofprofile.net/proofs/artist/0fec51f1-d8a8-4829-ba04-c9915763a6d5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Das 9 às 5 (9 to 5) / Acho que Eu Gosto Mesmo é de Sofrer
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 0x303ce8624cb5e0588c626b92504f3a60796abf6f3ad1c8b17d2f59a43eac2aa1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BRBMG8200653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc348b58794bf25209332cfc18e85849de05241078773511066d41e7873ca3101. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:22:28Z), 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/BRBMG8200654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2b676961a468b9a7c5a20ecf22b1a8f282b834ca953a18d7f735b04dbba421. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BRBMG2005312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d44a3b18345a355bbd7cf1c5ccf7df674488ff5704cf14482d6c27400ceeb4. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/BRBMG7900281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed55f7327e3993fee6634c5494e153e5553d3d632ef361eb20c0db7e8522880. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/BRBMG8000239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990ae059b60d3fe21094ccffee083d0e755b207d57b192d3b4bc5776878308f5. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/BRBMG8200621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1461319587d5677e07a39536b14035b65d64822ba34937e72ac8fb636e78f3. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/BRBMG8100188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62738751c32203987bd19001ebb89d54364efa684628ac58443207c79f3bda67. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRBMG7900284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0be77c9b558ffe6da24ee5aa6600cbec5d33e6a92c27c32fe92c5d500db1533. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/BRBMG7900283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90d44a3b18345a355bbd7cf1c5ccf7df674488ff5704cf14482d6c27400ceeb4. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/BRBMG7900281.
Como Duas Crianças (Como Una Chica Y Un Muchacho)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148cf8bc9a9c5d4a0d68982cb72cbefd2694a0894cffaaac129a5a3e0de414c2. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/BRBMG7900334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62738751c32203987bd19001ebb89d54364efa684628ac58443207c79f3bda67. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BRBMG7900284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4b3f59c6f8ec6b88e0651c035bc109e36617b55592a6d21986dca07900043a. 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/BRBMG7900335.
Dá-Me, Dá-Me (Gimme Gimme Gimme Gimme Gimme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6138a2e2e3699413f0c312aa4868c3a01da858697a2e9c84fd18b08af6f0a14c. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/BRBMG7900282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fef707abdb1a57e5575eb42fef4722df2122b15bcddfd082f4449abd5d4c65d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BRBMG7900280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9717b3ebf13c171b0a9cd4e1477c78432c0f400430825115e001bd2ce6c69c59. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRBMG7900336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f92905ada3f1494f7bc6804c3b620ef271520bcbf9ad0a526eae093d2c791f9. 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/BRBMG7900338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed55f7327e3993fee6634c5494e153e5553d3d632ef361eb20c0db7e8522880. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:01:57Z), 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/BRBMG8000239.