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 0xbc326c83e4de28c539a1b6b99dc68e94995a9c02469cc37c453bb3f31c916d36. 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/328a2199-8690-4fde-ad6d-cfd7e2647d73.json and https://artists.proofprofile.net/proofs/artist/328a2199-8690-4fde-ad6d-cfd7e2647d73.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 0x6a8787a5a070f357bc6d1ea08fd445b6c39a93e1a6bafba9e38b5511926006a2. 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/DEHK92108557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca9d480cc46975fbb5859846e7d0d0d1b9666c499ddd7fe9b5f4358d6f762f2. 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/DEHK92107799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbcec953ba8f3ad1a35b350230f8a239ba0bc41f436fa33ae1fb08e50cfe5ba2. 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/DEHM81900957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfca2855064aa6c634be9336738fb321716c132db7ee3af2aa696fc68299a1f. 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/DEHM81900760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20cc4e100dad5448f5f5192791645b476307a4ec3863dca0b03eb2e1ec492e99. 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/DEHM81900761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x885e4f7d1e0e2b838220d89ba56037128c80afca3342f12bb188a4405fb6814c. 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/DEHM81900762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb808fc91d498b9c5d7461e5e0bb90130515de0fad45bc7716eda3991c4326afd. 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/DEHM81900694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de02cca75007773d40275bb17fa2109a82c5d40589ce2b80a4d81ab30f66194. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEHM81800636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c3d850e35a93b5cb809bac2d870ebfb74819fc82a93c801e45fbdc3a3863ff. 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/DEHM81800338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2ffc87f463e40078d83568b8405785027497c0d488dfe635155c553859e46c. 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/DEHM81800294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc2000f1d4c5b58152c58d0715894c88ac0876d064b54d0644847faa953f24f. 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/USZXT2455377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca9d480cc46975fbb5859846e7d0d0d1b9666c499ddd7fe9b5f4358d6f762f2. 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/DEHK92107799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16aff0ff66c86d50e618f004ef7bdaf7a6e0f22dec9a7a7f8205cbe96a19d13. 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/DEHK92104744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f33987de8094b74b349c157e580a96339c5a5d479e3674d7a7fd2fb84bc5b37. 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/DEHK92108551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc697cb296d263cf46ee4a560385351aa3c0fce38368ce2963651707c8ea0d8f0. 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/DEHK92107779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872643131093ff13cb08a916ad5ed2bfa8c37ce267a8de9b7bfe2f8e6755d4fe. 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/DEHK92108552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf742d124da79694d4ddd79f9ef26e50d649e41e89dff8d0a4c66e42ab5a058ec. 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/DEHM82100000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6219b9735bf496079e90d4ffddf86f5bb328586a2a0d2e566dc3d6e5be26c04d. 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/DEHK92108554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f93a160d0b2a9c56f6fcd4bc2ae8e1fe8c8f7b35ce1104420fb7d9be1d9db2. 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/DEHK92108555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415a4c39bfacb2008aad2121f01bd3c0cb8e90b7659e3b09a187b572b465b905. 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/DEHK92107739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5035c8ad9a11cd445f4fc13b8f7ebdb6ec8513cb430f02a1f797f07aa68a1891. 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/DEUM72300124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1acf2074dd38a7afb53377748045a3382b63cbb2b8a843a97bb51b8a738d1a20. 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/DEHK92108558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08878682fc1cdaf3def4e8042ec3854f24669b9ec353af04504722933016de16. 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/DEHK92104725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3ccd2a3c2ee332531de9e43a5ab20da43a333f013c9700c2908a0a19d25abd. 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/DEHK92107732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ac7796e30a63df804b685ebb0023ae5ddea6233bacc1a9942754824d4ab143. 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/DEHK92108559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a22b683ad18f880f5212cd3093351fd3f76e93f91780fdb99cda87b70417407. 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/DEHK92108560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6557e38c0d223f796aac9477a0a3c5f915c6d7335bf5d70ea26d1d71f138af. 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/DEHK92108561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595bbe7c934b0f3bb2ca888314067e7dce07f6eaa55f0a4f21d77614a1b4b7a7. 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/DEHK92108562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0316c5d74541460eadf101785d774baac356daafd202898f9b267013e8cf84b4. 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/DEHK92108563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7bcdc3dd28465004e7e30615552868044887a92362c5fd9991fc08b4717d370. 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/DEHM82100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9231cae66ad266005eb22111f45f2da92f1de4e52d1b6e82dc30f7094938a059. 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/DEUM72204980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8787a5a070f357bc6d1ea08fd445b6c39a93e1a6bafba9e38b5511926006a2. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEHK92108557.
So gehn die Gauchos (So gehn die Deutschen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf5f8c563486c1e3ccf0b699fd7a55b8ec3a3de1e5511df299d47ac6728ba01. 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/DEZ521400135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8ee04fb9ef43d2f1e282c70fd9055ebfb706fc7357a96f979d817e73e0f961. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USZXT2454585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33babe75d5714895a795cbc119bbd4c2c665383d1ab54135e2e6ce4ee54b2f57. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/USZXT2454811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16aff0ff66c86d50e618f004ef7bdaf7a6e0f22dec9a7a7f8205cbe96a19d13. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEHK92104744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c340c77caf9e30868d59ab2823cbb344fdf6f6bd1d3356c8bd1898556eb02d6. 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/USZXT2454188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf742d124da79694d4ddd79f9ef26e50d649e41e89dff8d0a4c66e42ab5a058ec. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEHM82100000.