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 0x03af1baafb9d41676b30919c9733edc7d495e276f2d4d66f488cc840ccce6d70. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30d7d6c1-e0ac-4fda-8648-22ad8038635d.json and https://artists.proofprofile.net/proofs/artist/30d7d6c1-e0ac-4fda-8648-22ad8038635d.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 0x5fe55838cebf32fb176e0957ab5b08ebcd3108e56d00923b8eac81a81b40f353. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTB82498005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd79ffd24d0b335832ae4931ee5523345f5abdd6e6a7fbff6919a3dd41c14b8. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:50:22Z), 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/QZTB82498006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ebc41d7251cb2e6c5881acbb432cfef227fb2e2ea01fca170d12773420747b4. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T16:00:16Z), 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/QZTB82498007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc35d95d8b1dbc703e47e9fbcf9c9c7e95ab8fa8fbc71a0e44cef0dedb2d64ed. 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/QZTB82498008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9936335f6fb318a7b41d41d9cdbe5c44c0a1d8a6717354519b5005d5d0fc84bd. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:07:45Z), 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/QZTB82498009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a62e70c50330b53f2230d278a85fe58504044283eabc11441d4aab0a2ddb2d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZTB82498010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0829907c399f0ec2d94c037bf3e62dda346a7b5a7ebf8d95b7eb09651257a0. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZTB82498011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d03eb47f1e3a4b5b33faabe37c84732545e3a50571de2247394ccb979858e33. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZTB82498012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2872095aad358cf6f0075618df39b0eed27b13072297efd0d51a7153882028. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZTB82498013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9d43f78e931b33a73021071de28e47fd2517e2f389d78d183e2f6087e855d9. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZTB82498014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8bcac92061da6e36e57f4473ffd8cc6b24dcc0d6bdf962579af0353f99d392. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZTB92498073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222b4caf0ada724d17407fa8fd96987ff64229f6520e0677f1c0922528a47cd4. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZZ7R2418767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd61795721553ae50f4a9ada04a60792ac071a6a8d75e249ddfcc995047090b. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:45:54Z), 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/QT3F32428183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf50c6eba88db06401d892f9c06358e6b4e08f99b52663c456e54f521fea356c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZES72551724.
Philipp plein (Dexx69 & Sensei Shang Remix)
Philipp plein - Dexx69 & Sensei Shang Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35cd97b6c3895640b5b2455d748d23ac471099f8c7dc60b71f52232fe0e2eb38. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZMEN2507359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeaf0b79da279a10cc327a486961e0f48ce4a4fa539bd85e4ea5568e9876cdbc. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZTAS2548795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5a7e8aebad251e0caf14618b3be4dcbb4dd8dda5f0a24ee1b29d86667f3a81. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QT3FA2554880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcaf37ea05213d6b5d2e231bf42a0360dc674c9f0cf1f429cf2d137952fec5bc. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QT3FA2552102.