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 0xdbc51f12a7f9bfd7778c76ec063c82a65ff529e8bf54d9798e4860a054f9ac04. 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/961911d0-af96-45ad-b22e-432b36e9946b.json and https://artists.proofprofile.net/proofs/artist/961911d0-af96-45ad-b22e-432b36e9946b.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 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 0x0bd2a359c87ba2334537843f53c77de2a70e67030597d2f59506a5218bd30b76. 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/BEN581100599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e83df43a2f2930978fa2d19229eac1284bac6d4f627de7bca92488aea70bb82. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/BEN581100600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0aadd2048fd8cbae1d7a43a0fa02478e3c29a2c810b6c4e71d55f9e564ceb8. 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/BEN581000105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b89eed5b5e2f418922201438d333664ac36b707e0289c4bfe70c7f32c7f8306. 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/FRUM72401179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b580313ced05f2a914d1188483388eb8849a504939904f9a05567d1d3a8a232. 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/AUDCB1702754.
Giving Me Something Better (feat. Obi Franky) [Aeroplane Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06169d329909e8105cf81db566746a9ac59e2a2cb1261f4667b98a2a8b73dce. 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/AUDCB1702097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875ce108a36b696c004301335355f283b7873b41b4b3ff11b715524f508b3534. 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/GBCPZ2018954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7515dc80ebecd3e4b449db0eacb2c779dbbde1cdb62aab51ba172eb55c136570. 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/FRPHR2000060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202072d67917aae0c6c8cefcee69af1d6cdf6a001286f7210ada2016255a28d0. 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/BEN581800391.
Love On Hold (feat. Tawatha Agee) [Remixes]
Counting On Me (feat. Aloe Blacc) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74033d4320c5ed1265a140fddfdb2234605792c6c0142dfed9456741a7ebcb2d. 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/NLZ541700333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f898f833017fe880363e6e0be9dce00513987a4db46d02ce5fe9f0894cec3e. 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/NLZ541601319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1143838542cdaadae4708f57ebd7a4ea994b1171281395d765c9b52b59c39919. 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/NLZ541600456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a54833a1707935c15ed2cd53a4cbafde12f02b5008cf1602f52a58aef0b7f99. 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/BEN581400631.
We Can't Fly / Caramellas (Cassius & Joakim Rmxs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b580313ced05f2a914d1188483388eb8849a504939904f9a05567d1d3a8a232. 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/AUDCB1702754.
Giving Me Something Better - Aeroplane Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca34cb5715cf3d05e41052e28734ae1a6f922dd36c9a38e1cca05239c343e53a. 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/GBCPZ2322407.