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 0x94c94dd58e553cc08f8815ba987672dd3aa661ed72aca988a32d8539f022e979. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2cc312c-9c58-4b2b-9cd2-2d925b4b2f27.json and https://artists.proofprofile.net/proofs/artist/b2cc312c-9c58-4b2b-9cd2-2d925b4b2f27.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Let Praises Rise, (Be Glorified) [Medley]
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 0x95710c7d57809826ec84f973c3a0c1808a929ebe677ff6be22ef2f6fbf8f6bec. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T21:51:40Z), 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/QZFYX2065450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14cb421bf52009a7cde5925d090a11cf73dd0ea96b82cf695548ee3d3ac6ae42. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USHM92406566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc029fee4f64259dce12223a80f1e3db18339209695b69a461b33de1d646261f7. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USHM92406567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f4b57dc9abac2924cca03aee3db6727057f3c503013df016b3647426bb3368. 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/USHM92406568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7954944465540617afcb2efe1c82bd81bf92c374675c472479e4dc2da27c1a9c. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/USHM92406572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4ed39326ba19f42519929293dc036229ba81604de471dcc0ec222297d6a772. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/USHM92406573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4914692baa54cb384e867254ae5660f3df14786903f02904f5a730c2cefe3280. 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/USHM92406576.