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 0xdc22770e94be6e7d330b90b8191b5f84a72e69d1e8b7e0d7dae47d4b2c6ffddd. 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/027b6f22-7124-473a-a259-739554dc537a.json and https://artists.proofprofile.net/proofs/artist/027b6f22-7124-473a-a259-739554dc537a.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 0x4c6c8da7601b53bbd9b313d8fdcdaf588397a6d7193d6552844e4f6051221d1b. 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/DEA811900184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31a7d887bcd097bdea08bce98392e58d5b085e6208d7003e26554ffa41d2f8f. 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/DEA811900177.
Morgenstund - Gestört Aber GeiL Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5473b1a64bec45a50cc65e92090fb265064517f68a67e763ab00a08a1acc9eee. 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/DEA811900178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bbeb2b6e29a3fb37a7985e1a3d8a65553c18a8dcdb0a6dc702e6bd37f7a148. 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/DEA811900180.
Morgenstund - Stefan Gruenwald & Chassio Club Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744fd2a4cf31e0a491729dbdcd720e4da9ad24f9c4b55ff54ccc3d425ce2485f. 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/DEA811900183.
Morgenstund - Stefan Gruenwald & Chassio Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a39f4e434428dca36b2ddedea4a7b159d7ce3f69a15bc3f28fff3bf27218baa. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEA811900179.
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 0x29549f82c2b7b9736e27eb26298f539398f0cbb6c430ad2342e71d6407fd4daa. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEA811900181.
Morgenstund - Gestört Aber GeiL Club Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6763204647328a22243bf2cd1849f7880b5ef4014ee3c64618c738574b114d2. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/DEA811900182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0f00d9b5bc6641ebbec8b337f8ae9bb4ed7c99d199af9a196e578ffdefe030. 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/DEA811801584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b856b0f9ee375ef0ff0fcc1627a5c6321ee13491a5e4c372b228fc7bb46476f. 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/DEUM70502211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efff5b6c3d1d17a6211cf0aa1ad1cd4e0cee27636ed44d5f25d796899c28e57. 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/DEN120205892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cb8eeefed875462442e090e58837ccaf0e05f53c3cd0be9a6332fe10484bce. 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/DEN120205846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4dfc3e1cff84b595ad48a30d36b5e1e156872e259a45ef3945a9074c030c088. 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/DEN120205885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6d327a04e9eef53de3aa992f834fe9d39c2f4d6da37bc7427a9fed0c3afa76. 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/DEN129901471.
Magik Seven Mixed By DJ Tiësto (Live in Los Angeles)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594aed50c3aa35997a7e6c32830decaf9bf7edf751bc5de47bb9b52f4e463c7c. 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/NLD681801934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40bfc64335b75deb879c8baccd9504c08cb4ae5ab75d1cc21115c0175ae68f16. 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/NLE719801903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe643f4b2ef881333d4a28a4cdf36856b8aebb7ccbaa00adad327f20f90d6af5a. 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/DEE862300219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82af6c9c25208fd1664ecb60e4ffaad089e2581990e23c84f80100b0cc698831. 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/DEE862300220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d7ac35795520a242d218444f888b81ff204b27dfb591fa45f6a100a441928b2. 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/DEE862300221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d36432f4040fbbfe840eb431541cb8c6745459079b19dfc083e3edc1e6cc9ba. 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/DEE862300222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8734e2978e23aa3f02e2bd7171e78d1947d20c3d2b17614e752a40928e1e4a25. 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/DEE862300223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e144f52c4049eb9af0190fd3051252517c291370b36ec4b7d77f8a3f8480b5. 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/DEE862300224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33efb4cef218f1a5bbe9a2af3f428714d166b3d74e1974d827d68c6dde9398d8. 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/DEE862300225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1c7dba17109c8029232a2c98db811ba9c03d91d555f3047a8d65ef61d3fa4c. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEN120205893.
New Classics – zum Entspannen und Genießen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a88b61dd2787afa7690a5cbb8cda17b43d36ff6c81b74707024d0aafef9d63. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEN961301000.