1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x9e31a64ffaa1e37fab27e754e279e4716df6715d12defd8751a7ffa41f322ad3. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fea259c7-acd2-4099-92f3-777f3e8f7397.json and https://artists.proofprofile.net/proofs/artist/fea259c7-acd2-4099-92f3-777f3e8f7397.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 → block OTSBitcoinBlock must exist at that height 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 0xf7e99e6d8718d360a81f38d9d24908c2a93c2cd3d67a513000f4419ad1c60785. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:08:50Z), 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/QZDA42291175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c20b55ad5b2abf414effffe6cd9a99cb4e671109130ecb81cad110ebdfbdc4. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZFYX2335395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034eaac88a612d0f1b0ca0191854756cc0a9ee55ec161e76908d78bc775180a5. 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/QZK6Q2323557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63f6151db4be38de809d283e2f3e73ccdcc100535ef0166d0dea64e8d1dcbfd. 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/QZK6Q2323563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49eda941074c3af6b89e44fcf7f12b923bc1063ccf9e049c63351ef794afdab. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZHN52308138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1af7e321fd75406e2c1bd1f32efa60fa3f5e55cf5818c506bd9d754f53cd886. 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/QZTB62234782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06d5a7b68f35170a6bd72a1ace3d7c8124215b2c9dcad94697dd2f169abbdac. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZTAZ2326775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd242b568f6b4f268b0be53570ebf5cf6c611b82fdabc9cc33cd244ae61719cf. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZFZ32481968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4cc9d9b44edcf1de18e0afe4a366fb612cf52e6467f0e93fb8c519920afcac. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZDA62439970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05075899a49b95717fed1120276f4228f4bfbf7e18068aa0767b00f0909eb306. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZES72482849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d38eb689dab6f7af01f9a5c231c8a0809a20fa1617c4776073570caf2507ee5. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:09:14Z), 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/QZFZ62337725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a8a688ee467a2e3ec2e3252fae3ef7deb6b1fe3f476d453d714643d71fab47. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZFYY2526466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050360039591b2cd0d24f1cb96f4d71bfd119c39a6af752b0c3cf3c7446dadd2. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:08:31Z), 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/QZK6P2208281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe763183f0a469c07dc05a5628333a7eb271f677055c62c84653ea4e9d3797a3b. 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/QZFZ62313981.