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 0x51f24383ec8e148a030cc1bc6e8d4eb02901b7326d37f50ac6c6ef8a13ad47ca. 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/cbeda5fb-c95c-4e2c-aa22-c92a03af0b26.json and https://artists.proofprofile.net/proofs/artist/cbeda5fb-c95c-4e2c-aa22-c92a03af0b26.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4977643e3cc533c0b1be6af3a68904ff35ccc2d711de335d0b308d29e3be61c. 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/DEGR81711701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807f67cabefa2d326c9ab16304cab89fe950d2db7e899399ce5700a536a1007b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEGR81711697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9721a990a5348ff6b2981dc855258946e6faf684bcbb8ff1273081c914e3a5e1. 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/DEGR81711699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b05c607bc26d5cc60ea7aca92fa257beca515f4653b52eed5f48a38583ecf82. 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/DEGR81711695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a278322df8ae2db978adff283bfbce26ec0dcd4b57ad3f76ff25f05fa53718. 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/DEGR81711700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b79463b7e11391102c6499facda4700ff628dc061f566a29cbd68c33d728210. 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/DEGR81711698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22eb3d689e418a9d7d7e820dddf5831288bf7e16110b1fd7a4fe2266cc5a8c33. 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/DEGR81711696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f890fb21a787a8d351ff628a0ca04b4341fe3502b5e7311429a23d376f509d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEGR81711647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc139f582c243ae89f3113bc2ae5d7c3828af2c35328e785b07f92a98ecefb76. 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/DEGR81711694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc4f51f1dad07850cb9746e2698cf7c43583e49c57930c820a1576d3114b13c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEGR81711704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1ad2844a4d54374101ed8e41c07248217b1ab6207cdb843c02ab5211f0a8eb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEGR81712194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc338d578ef6e6dd9358851387a9e1a662c058df9f1506f60f6ec1e7d2fcc2c89. 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/DEGR81712195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82aa97b6e8b36a70720e4dcc729573117ec4623b7a85a8e75179f0c8b07c62a2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DGA072439115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55be8aa8c9d0251d17e5955e30d77332c12192bf3094196f1f71aec1818e4ac6. 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/FRX762435075.
Was kümmert uns die Zeit (Ferrylake Remix)
Was kümmert uns die Zeit - Ferrylake Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79e3a67d48014878ebb9868a9ae26455b4c6aa87fb15f310bbcbd1011761b65. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR59R2462750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9566d71280818ad67a991ccf06d2dde74d20cc215437ab63e833c5309be690. 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/DGA052376545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883eda367995a9521de53149794128a65db5fd96ebaabf23ebdb56261a103498. 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/FR96X2358058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ebadb11f45d4ec691952256cb68cb90038e0534205f1841d3215657a91aa18. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRX762188245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3be8e5bcda85764613ab584f4e76c111d406035da99a845c18cb03d4e06d161. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR59R2156650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd038a06f5f0e0100e7ba9cececb5b3cafa0d280d9ae9b14ada327504f650764e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRX282068583.
Warum eigentlich nicht wir (Crystal Rock & Felix Schorn Mix)
Warum eigentlich nicht wir - Crystal Rock & Felix Schorn Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d445a83f6664482a03f288eef4bf48015defb468df9fc93143820e3a2038afa. 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/QM6N22135347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3be8e5bcda85764613ab584f4e76c111d406035da99a845c18cb03d4e06d161. 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/FR59R2156650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b0fa17d6159b0c62854c193e49bae0f83f3a729d63a08209260932d56a83c2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR10S2104375.
Was kümmert uns die Zeit (Keno Hybro Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd038a06f5f0e0100e7ba9cececb5b3cafa0d280d9ae9b14ada327504f650764e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX282068583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6027638294c6437203fb13ec56b7f08fe5b2cc144452ea57352ece38a4d1b7ca. 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/DEGR81506896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c15bf5ec0dd1bf739cf3ac2df25ae2bdda6c1f9a1fc5a0056adbeb1b0d7c37. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEGR81506943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a9264f45b47326c89cee584df1282477821bf177e59fa69cf90d15119be4fd. 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/DEGR81914821.
Herz auf Halbmast - Wundaba FullBeat Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe51a15373ae25012271ab08f9a9d00c499f0be409643d84f88a6c18fc6c50c. 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/FR2X41813481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89edf2c994bd4ae674605d9f4088a6426bfd811b6a2d2690ebb0b5c753788742. 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/FR2X41813482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9721a990a5348ff6b2981dc855258946e6faf684bcbb8ff1273081c914e3a5e1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEGR81711699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af6f3039e73acbb8e581f8b0b17e7cf2b80682a7f7351119ce402d140e00a6d. 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/DEGR81712743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99c7600f18e18e70ce2b65ce6c138403aa391eb060024445849dd8f6ae62ddc. 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/DEGR81711984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6b53645709a05ff20db348f293a46c0b644d9a98023e9df781ee25b96f9510. 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/DEGR81507256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa4b941f738511bedc5f1231e96d189bf1c648cc03f73f70809b830604cf4db. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEGR81507255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9cdd425e285dcc2911c9901fc709616c3bd524f07a90d7ddb1f806a4c61d55. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEGR81506359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3654f9a5d00c05e162d134f300d48642d139a0c9391892a28aa452d7a71c76c. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-21T17:19:39Z), 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/DEGR81506360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37befe866da854cacf48f306fd4544482de2d05b07015e14c9fb2f8cf9428137. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEA621500300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea062e187f4113ed97d4d61e5ce8ecaec0a5b7af215902d87e076a65c561cfe. 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/NL4NL2182245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74847e385feac0a16895f2b40dcebb6d6e8e1ac857a784b048e288a73b26340b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR10S2529293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb9ebc1cfeea84fd8fcae09554081b59bcadcc3927c8e04a7104f7d45ce3755. 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/DGA0R2492008.