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 0x9adad2e7260cbad457a0baab1761a1c8f0b9148499f0559bd1639988f5f21746. 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/d8eaa8bf-eb77-4f53-bf30-1255ce752194.json and https://artists.proofprofile.net/proofs/artist/d8eaa8bf-eb77-4f53-bf30-1255ce752194.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 0x29eb152abc9a56c9f1b788eaeedee4fdefb3d124458ccedeae18a01fcac64790. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:00:39Z), 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/QZMEQ2278321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1808ec6b6091c67475d4d1078a077bb5d02aa6865c7d6a1ac4a4c58284264e4. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZMEQ2277260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc73119822a91e4b8cf8a04496b997dbf70191d6c923e8cae452f81489115989. 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/QZMEN2020631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c1be89a72403255a44b9d4635ab4c0cb88cd54095c6fde28b97361518fb12a. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/QZK6F2092613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8d994b3ad90e4367fe3d5e5bfd06be7da336c6a56096dbe4f50458fd823864. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZNWW2066673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38dd2414a015d14ee744e234013f0d71d55e957e25d352bda5fe1060b1346050. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:01:35Z), 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/QZMEN2038048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b866f49e204fccf3ee07af7e5852f9a83c87c33702d9250b0f8cc0729be891. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZMEN2009777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9746f868bcf1fbf40f8fb8d0ff89f0faa8bbfa7ccc8f30371313e09bbef77ce. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZMEN2039047.
Samin Yod (I Miss You) [feat. StanzinPetr]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab53f74cd17ebafa4d921e9b6fd4c93f1d7847ec5dc871ebe51d0f2929cb5cd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHN72161824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cad25c52299bea432b142db54f5e89b37a359d9476f80bdb275a7034e1413c3. 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/QZTBE2364358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e9365c6c144b10a55eb632178a6af4be2bc5cebc66887ef3e7d0aaf9829f7b. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/QZMEQ2567698.