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 0x009ae82ae4f8cef86dd6ef32ea9a1659b7110035d6e5ef556bb7775a73f890b6. 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/6fcfbcf4-9665-47bb-9989-f74f8f8871cd.json and https://artists.proofprofile.net/proofs/artist/6fcfbcf4-9665-47bb-9989-f74f8f8871cd.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 0xe007e2c6abe070be7c4267596a6faf34336fb6859a6398e5fbeece7ff5c3520c. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:09:10Z), 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/TCAFB2021369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bdcee309c7c33ddf823c92e17b69097ec0093470de5f653b1295249eb0fca5. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/ROBRA2404735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0162daf6da6790f31606e3f7d6056678b1d134bce866bc6c00225aeb0e631e4. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ROCMA2112528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4153b921d6fce60ec671f12fe813af4993e77be7eba0b4e32177ef6f4e2cc6. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:01:55Z), 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/ROCMA2112546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b08a3007ea2f4ef5a0d7ade196eeb2c7d6dee926b5c64fcb30c34744154536. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/ROBRA2404728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8ab2da59a47177e5b45df62769c00790026d0f92994c5182e3545d03f6266d. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/GX5MX2109279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f1e6c1c7308866ab2fa40b6ce16dedfe586a0f2b2bd7adc0fdf08af5ed6284. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ROBRA2404746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7a363e759e16f7e2d450d5a8ea7fd1a89f4704893a6bda6cbcedb5b968f2c7. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:06:32Z), 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/ROBRA2404740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20346ba7835b373dde7351802e599c6d742d5d90d8c1dda34897b341b84dee20. 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/DGA062385175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5918bb3e43abafc0e5ded14675f4ebf1391339f5916f2741a04c7e2aae43cc10. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:05:34Z), 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/DGA0L2399917.
Stanga unu, dreapta doi (La multi ani, romane!) [DJ Bonne Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d692ff67922b675ff61ff5487c55d3c08081e3b1892049438cf850664866ca9. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/ROBRA2404725.
Stânga unu, dreapta doi - La Mulți Ani, Române!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd480c748d0b50dc87a9cb77f8e8ecc0704619e0d5ad610f6788e7583597178c. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/ROROT2405830.
Stânga unu, dreapta doi (Dj Bonne Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91bbb024b54fcd6b922808d07f12d8bea8f0b8a75bf1b2da00b532473e79088a. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:39:10Z), 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/ROBRA2505019.