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 0xc7be893bea78c0b60bef215cb01952c8217909b127f8d0aa0d79147e41302a95. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be69ed28-0123-4e77-bf50-9f3e030798ce.json and https://artists.proofprofile.net/proofs/artist/be69ed28-0123-4e77-bf50-9f3e030798ce.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 0x82f9c7769bbc2365c353cd894d051029a9bafd5a78cfd786a477fd2af9e1c795. Chain 2 (Bitcoin): anchored in block 957544 (2026-07-11T09:08:48Z), 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/USHM21850304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47243dd610433f576998bf876c359d4618e2660929d42dffabbb8d50916bc543. 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/USHM21850306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee76932910262e65e081e28ba9d1e628cc25b25583f96a7116c953b2ced80a3. 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/USHM21850307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d0c47a7656ef0268bc9a23ecda402f1ee25b4745a41654687fba29a910a05f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/USHM21850309.
You'll Be In My Heart (The Voice Performance)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7431cd83e66ac674359753233d18b783eaf5e7907d97b035a04480d65e7329. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/USUYG1391640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd94a74c8f3e768ddc05f94ac4687ae617141ef4538120a86cd2c28138c778f. 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/USUYG1395371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e3389d3fa82c6ffd19f58ed1b63248efad4d092e0e4f7aee6767b4ebf00e4f. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZNJV2226726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cadf5f0b191392f93107e66ba5a2ed43271c24bbf9519ef44fc6d9143307329. 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/QZGLS2312675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e8b9320ec0665b1d847f65d2f37218d370c3a811c56b1a7d1d7d4acd6c0578. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:43:49Z), 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/QT65Z2526482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e72981f0f01a5c40e452741f4293cbc7a6fc716a2ba586e84e4853d27853568. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CAN112000710.