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 0x213593ce03869d20c334b05b9c1397b3ac365944dbe1b73f81cb06da4edc1545. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1e75614d-2d77-4fdb-8364-dab741ec17fe.json and https://artists.proofprofile.net/proofs/artist/1e75614d-2d77-4fdb-8364-dab741ec17fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Round the Twist (Twisted Remix Short Edit)
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 0x9e16cffc5c5cfb8ed3a78dbc5100c2145fa8ccaecb8a93adb08fd656f13823bb. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/AUXN22153513.
Meet Her at the Love Parade (Samus Jay & Craig Leydon Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa5194849c2c82df230d1ea614298754a88476a7e8f60bee0f23b162b65f583. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/CA5KR2317986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af18abc48a16b21376cf5e65b39a505a5d79ba8667f4444909040b374c96772. 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/CA5KR2386604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ebd71b645504716a95bf1685d7040870060f42d7aefeba25b47679dffa70ea. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/CA5KR2422187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c3740ac5c6ad2aff6e9ac1567de9697f585650f0e84ac6fb8fe8f7ad587769. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:45:41Z), 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/CA5KR2453112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc58d15cdf088b082cb2f00e8b36a54455fb206f2a19bdfde550171f9daa6ea. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/CA5KR2494335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd57b6f18ff9b291e56e97e17084ca38843fcbc774db53b262afeab4f5451364. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:36:28Z), 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/CA5KR2504052.
Ring My Bell (The Remix Project 2025 Mix Edit)
Ring My Bell - The Remix Project 2025 Mix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59320de9e99c246b1fc49531f71708a9e409f59ac6b1f22d73f4640ef23721c1. 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/CA5KR2505827.
Ring My Bell (The Remix Project 2025 Extended Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a003340c28c9ee6dedccd5a69cfac0fdd3a9d78dd9b9c590be818d5e125394c. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/CA5KR2510078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8cf683c68deb34cf017d299978cd4796c767c720d1ca19a4d40049c74428b7. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/CA5KR2589267.