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 0x02c19a87e9fd60b2d4a12e1071de5d11f153565355604a5ded3a547b88269954. 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/1bfd6d8d-e19b-4b43-bf2d-174280624d36.json and https://artists.proofprofile.net/proofs/artist/1bfd6d8d-e19b-4b43-bf2d-174280624d36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Manisch am lachen voll besoffen auf drei Pappen
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 0x31b9ad6f686f9d098d87988fbcb23071b231a5589bee8984d6f20b89c792ab5d. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DEZC62294460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5279e61d96d2247e9e1a8d9164fa7211ce68f851755ad6a4b314e569a4f28de8. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/DEZC62294461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0656675884b616667a04bc1a97a1a546adb69f91c2bfdb85abd8184780f90838. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DEZC62294462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8a79a42058eb6c80c4042d115fa9e73a5c8aefc7ec6665adb555ce818adcf3. 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/DEZC62294463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0a19570fa9dcdbfa4838c79214d700ccc42cb32fd2c76fd030328c09b70a1e. 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/DEZC62294464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5079d180994e335cfc03086f42404b6ecf77f1c1d03039bbfee2ded4117935e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEZC62294465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0933ba341cbe312e9661fe5a2b39734c79fce1f1a6c09a3ff1a70acd820c09. 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/DEZC62351744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5fed3eb4491884230cfb62f7234896830af566d1ed7e952dc72eba22a89faaf. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:43:49Z), 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/DEZC62351745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9083f60536cf9e8ce4e14dabbcfeb81c656f636658bfd81df52db0e8a787aa. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/DEZC62351746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6090a322a6936e7898921f4902ad7036cd196e95fc57f7bff4e832f09f804ceb. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/DEZC62351748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841a800164964828f3159f3d0a6806079b4b39b8cedda3571cc20a7d4437a832. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DEZC62414399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783b493056c853c273055a156e5d2c6928c45490bc7e0698f86bcb8c2eb8617a. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/DEZC62414400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85721461c42387081b4536dde5e4f5998dc8fd47b32177c05de36aa7bb6db648. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/DEZC62414401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dccd6af81ebb9831c10da4c83c270099cf0ccd567dc504dc2cfba0ce55f6ec1. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:41:50Z), 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/DEZC62414402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd5a719880a471cbb4e8d9f673b6a468018e24fe2d2631cd162983f71543f4a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEZC62414403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0977319ba25d8ce2c85d40bc5891e532c5a7833dcbe9ec2c9a1b4897b1218e. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:06:35Z), 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/DEZC62414404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa395411d6324aa3f636b4358045616ae112fb251a0bae29ac17fb767a2e4706b. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/DEZC62414405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec4722b5c706e9c716d3aacb87ef944f933ac8f542145ef91052968222a17d3. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:35:06Z), 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/DEZC62414406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3807daba5af59bbd72933255ed4a78a26fe087b48b5c4dfe0a8701ce6d16ec3b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEZC62414407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092ff7faf82f95ab632ebc7073b656b3d7997eb4d104b0199ee6e8313a588a72. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEVY82400468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf977d2ccedcdc6224173e625f599c969add6bee361879573628cab27f74ab47b. 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/DEVY82400472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11662bcaa2a792009a0af041f29b20be73338d675f3c152363509f2067bc521. 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/DEVY82400474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db39203950ee145be05bc9e48b75c5cb35eb5e0ee4f3ce9637851fab1f3ced1. 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/DEVY82400478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e58e5dd3a432807eca3c54a5b801e48782f768fbf66361addd07ffef0afe16d. 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/DEVY82400467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092ff7faf82f95ab632ebc7073b656b3d7997eb4d104b0199ee6e8313a588a72. 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/DEVY82400468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832713bc63baba06775092b02f5017162ce126d99d807100ebf9051a25a44bc0. 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/DEVY82400469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41140d78c95c3cb27e28363d5838c8343e350e69ad88f047ed06b78b90b90ad. 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/DEVY82400470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98cca56c80452e7e2e83fbf0951a59e1e28a89165c062b3ba6d27c22f120978c. 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/DEVY82400471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf977d2ccedcdc6224173e625f599c969add6bee361879573628cab27f74ab47b. 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/DEVY82400472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d34b99384d0ba9495310e3266f1842928438c8945038253e3f3377cf820e038. 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/DEVY82400473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11662bcaa2a792009a0af041f29b20be73338d675f3c152363509f2067bc521. 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/DEVY82400474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa266c8c883194d7c6f24d4bf600fcfcc3d8f9b24ca0819f785b98917c25829ce. 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/DEVY82400475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb0b743086b3d252b47b36cad5fe1c656f2b476fd48c358f23674c030d9e48e. 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/DEVY82400476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6009723550511a764e67255e7627357474cec9f582913c939a6e96e673f80fab. 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/DEVY82400477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db39203950ee145be05bc9e48b75c5cb35eb5e0ee4f3ce9637851fab1f3ced1. 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/DEVY82400478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe966868252a2c846fa6dfbcdd1d78f20c26e1e4b3b894064e5e177cd6c3540. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEVY82400523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee549f3338e2b383a2b1f8873e01eb71c3a5cd03fb516d7b45d3b6c2729dc874. 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/QZK6F2451183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc9e6d98f14ca91ff7f9beb4b0c77425e444dc3a64a10818ad06cccc436114d. 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/QZK6F2451189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05501fc3a6a0716e5bd3137ab533710c272549a01fd82eb7653f35f453bec85f. 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/CH7812368541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f205bdacf10376c8db0843d7b21b7bdac5efaa456898910a54447d6b72b5a51. 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/DEZC62445071.