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 0x79ead9d1f6a404359ca6074d0745744e07ffa6c74cf7cd042b6d00b18f927cd9. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/542384b7-e04a-4c14-b654-853b028fbde4.json and https://artists.proofprofile.net/proofs/artist/542384b7-e04a-4c14-b654-853b028fbde4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Criminal Bassline Various Artists II - Mixed by Daniel Jaeger (DJ Mix)
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 0x840362ee7f9513475d59433f73b5e58d514e54c5bbc51e05759688349a113ba5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US83Z2034050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeca269582be6902b55e2213d2b7ba1ec41966e04734b9b3aaf3968a500ee2f1. 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/US83Z2034056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566420a51b66fc44d895b875de451378eac5b4027e4a1f442f27ea21f116e92f. 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/DEBE72100406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea726440ebbbe05ae3f01fcf273e87df9193ab4fed0f32f577fcea2b6b140858. 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/DESH42000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce4c6945e49384cdffc2d10b1f56e98cf86a1f549ea02cd482acc99a7417938. 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/DESH42000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2177300f747c86fc49dd17eb47db4b57dc7324a36e5d44683d44d791208500be. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:53:35Z), 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/DESH42000043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24dd376dada2be8de18d22d74243017b1144f7417f4275ff5d9eeee6b82ad0e. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/DEY472481002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6617a0895d76fc9ae3d2e6b309dc641198c6032dc8b79e73585bcc46e583f18a. 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/DEBE72200617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b15cdea4723f631a2ce3099223d0a3012f13b94ccb0ea9937929f5784a6298. 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/DEBE72200618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557b5ccbf3d618408896eaad166c4cc2a60a40b929b41d35e0bf252cd4e5ec50. 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/DEBE72000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303c905be57ebb1ad055ec5b3858ccfa66d3bc510fda6288416997fa4f024413. 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/DEXO51914252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf586f00afc4b1df0b56b87893dafe5a6de124ecf09c97b431da4637f5fd81d0f. 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/DEXO51914253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6bd45562e2d3e6be7fbf2668984e3238b1c2c937044700ff7364a2cf1cdd61. 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/DEXO51914254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed346c9633f5996e253e713ea44791bbea2df96c408cbfa8e67ca7f31e233410. 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/DEXO51914255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723ad670f25964b23004a0e080a48fb7fcac188559e442d3ab6885f2b254939b. 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/DEXO51914256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1bd923d71145307f8522f07ec140901aa7f707ac929a10bc1ac2a9580bdcccf. 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/DEXO51914257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a60bd9acc34686044a5307d3b3eea204a21731e2dd7d81bc9bab16b4e5a91c2. 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/DEXO51914258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38782e5f535d138356044b9c8c1af2eb34855b464daf6ada99c6b0bedc678128. 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/DEXO51914259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391c62c574fb1195307a99991ab957800f49ebeebd46ef8dc4fde0dcab309448. 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/DEXO51914261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557b5ccbf3d618408896eaad166c4cc2a60a40b929b41d35e0bf252cd4e5ec50. 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/DEBE72000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ec382395fec69ced96309119bd0d86e120deefdd5649ae91eb7f804795fa09. 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/DEBE72000046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d493fef3cac4a50cac3d592e4967dc70a31da3b2d2eb6558cfc383f3ca289a8. 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/DEBE72000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3473547209782131cf539f268d8da4e1833d6abcf7aa56f3a7cd47db9d1eaa98. 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/US83Z2024564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59efbaf4ce92532eb248a1373a7b49b8affc04213df9ef61775f7a5ec740383d. 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/US83Z2024565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98efff039414d49d3562939a34c49ff2adf015a595d1becb9645df250c72ed70. 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/US83Z2024570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430985c3a822d871c3b0c4b2e4380739712247efa198dd642adb475abf18614a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US83Z2024572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3513425fb5a6f0bb81318e078bfaeaf9b6d4c41e2f82a07d395127093850c7. 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/US83Z2024573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5320190057c368313c78660fc7f8c7b52025479ec050e73af477d8883dbb370a. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/US83Z2024571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521ad60bbb7faaa5f6b7d0ce95b56359fa4b2ebaac2f6186d675653760bc55d9. 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/DEY471983058.
Schneeweiss 15: Presented by Oliver Koletzki
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb82b388a47e6946466af311c6f9ad0c4520cffe184fce6dcbe93e6db417e147. 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/DEVU52363196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbccc44d8c1d245e84c59b32733ef7c673b95222843b77975e64055a3b2999765. 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/DEVU52363200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0137d9e77e91b045eed9ae2748ca7b9074062e887b045a88cf966915808ffe8f. 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/DESR42000350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ed6a345c899d070de5f9bb265ccff7088318a5b419c6a9273a8547e051fbba. 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/DEBE72100497.