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 0xe52f23f6d0371c1c87d1fbe9e8ad3d8cc6f3e4dbfcefbf141b1176ced5c2a5ee. 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/43b528a4-aada-4ef9-b4d8-11580d4af9de.json and https://artists.proofprofile.net/proofs/artist/43b528a4-aada-4ef9-b4d8-11580d4af9de.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 0xcd01cd9ebb8876316b8115e44d76f36affd385a7530b21522893199b7351aade. 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/DECE72401795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a38d438c990af2b560476743b6243aae72e1c69863f0c607fc4203975bc88c. 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/DECE72401796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6c0569d6351506b0378b6634da1f47cc3aad8ea5b2a846c0c4a3900b5416db. 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/DECE72401797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c9a062c5cbac838d25878073cc339cfeb58d7655c1cb56c94ae4aa72bbba6c. 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/DECE72401798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022f258980a644a4fc4f671c6b48a5c831cc4597dd830ef7e66c75190cee4bd5. 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/DECE72401799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28ddff4c00fcdaab7f2156a0d3d09aecb631e3869918762dcc4184e0d4e0d59. 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/DECE72401800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76b265b160aaba74321cda295985676e6d2d9722c2f9d29d150a97c40a12332. 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/DECE72401801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb941536dc734db7523d334432b80da87ed7302a5ea66bbab49a2fc19a39f0dea. 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/DECE72401802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb834131cbdbe1fa7e8b32c9f5555f344f174417bc8bb3d3b9c8673386a94fbb5. 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/DECE72401803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816f4d56ad9b13d26d33d45af1f40687dbe963e28e465928478afb2da1a9fbea. 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/DECE72401804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc382d94be5535fdd5641fe5c483c722e482f5ec4ee5e40cffda6aef2b06143. 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/DECE72401805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acfabd118b1d5a641eb43314d9ac26111533b47fa194647ad34b4b77b4bef10. 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/DECE72401806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d51b0868d4dcefef8b8b52717b8cfbe5c4fdfe51894a109b8e9b9eb3c8e202d. 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/DECE72401807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x110eb39fcde7baf15cf2b7ac6a063ae8eba2e93b01bd0e7cd37faa15d8c37c76. 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/DECE72401808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb834131cbdbe1fa7e8b32c9f5555f344f174417bc8bb3d3b9c8673386a94fbb5. 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/DECE72401803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acfabd118b1d5a641eb43314d9ac26111533b47fa194647ad34b4b77b4bef10. 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/DECE72401806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28ddff4c00fcdaab7f2156a0d3d09aecb631e3869918762dcc4184e0d4e0d59. 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/DECE72401800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6c0569d6351506b0378b6634da1f47cc3aad8ea5b2a846c0c4a3900b5416db. 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/DECE72401797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4ce0c10ac4aad2e30fab6d712d795854d861667107f2551b17745c004552bf. 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/DEUM72000982.
Dann mit der Pumpgun 2.0 (feat. Azad & Kool Savas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a199eb6ab3542071ecbc41a984e3ce6d672ba3c91d66af0869620fb60910561. 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/DECE72201764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e95ecc97b3196ad1332f3976d25784d68b5d8d90c4ec3119d38e5c8b3871279. 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/DEUM72000985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2cd3a677c8331ef066342e6b2c6048c4f8d54ea8ba56c62785fc8f642ed827. 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/DEUM72000990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166cacb9b780047e1d5d4078dc78ac6c7ff1186024fed8c5d24f94a7c69408de. 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/DECE72201762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99589d53e30dee79f620f3a1142aa0a94ea83885f198de142d606959f92305cd. 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/DECE72201763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00b542686f44ad015a48d2c8b8eaa8a30bdd9d2f43974dca9bd70799a831262. 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/DECE72201765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a250243d6f80b58909c1ef499b40e9d474963554ad74a2b4573fbf50380255e. 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/DECE72201766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2df826bc41b692b469018933d9fdda58298546d24a690f0049e3c28e88893d. 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/DECE72201767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a68e578f6cb77cfc7928c653dc8b4093b2e8ff3b58be930606f852bff721e1. 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/DECE72201768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d78756f36405a21dadf8b49134fbe093e9f1141ecf89cb646b8019b3c1cc1ea. 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/DECE72201770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a64f444f1e811d3f869e6ed7b7300bcdb484936815b3e523621f9388908bc42. 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/DECE72201771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9359e26030f8e1e074bbd8db3acc335315be4ed45d7d385b9d4fb924114cf7e9. 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/DECE72201772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8fe557038a35d83eb6e154a4f6ad164adcaf20402b922f16c76a87c01403f85. 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/DECE72201773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb3a7d792391016b9ba6ced82f31ae66b3fe2b1d7ce0f67b00d8a4da0b9c103. 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/DECE72100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65171c86f376dd764c5548f47a54bb14cfcec4c866d522f19350be410abbcef8. 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/DECE72100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a97d123466c48c0eb8cb5c4672fd38bc7b84e049b1d9c1a4af7757e3c668542. 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/DECE72100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ce0ebf10d5893d4798d667aef4f49423f65f4e1e04da90eb2a8253a809aaca. 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/DECE72100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa53d4c72212b95e169d7d72eb8fa7ed15f401494cdefff563e9b9dfe2f35bd. 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/DEUM72000977.