Norman Fox & The Rob-Roys are an American 1950s doo-wop group from The Bronx, New York, United States. Background The group formed in New York in 1956, and were one of the few interracial groups reco
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 0xdb5da322b9aed37151a1046fbcdbd79aa11808fb3e4566af24a7c727be9dcf10. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1fdafdf8-b91a-4ea1-9ed6-fb2a0ae36772.json and https://artists.proofprofile.net/proofs/artist/1fdafdf8-b91a-4ea1-9ed6-fb2a0ae36772.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 0xe9fb9e9333b78279ab8e3bf47ce62253b4559e1588c0ed7bf44f69632b3fa271. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:10:04Z), 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/USHM81600873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8f09f85f21f52e880f7358859c564f49169de93fdf177f897f1674e88e1dde. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/USCGJ1780791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e504e3ce724ce03eeded596816062255839376e682fd7a5ea4fbdf36cbcba9b. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/USHM81543103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4abb2417a656d62b4968267a6b028d95e3d01cb0cd8fc6a38182c022073729. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:49:57Z), 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/USHM21670316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e69e4af90b808d9534e7287d51746635863520fbdd652cb1e16f4bce3f7a99. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USHM81653913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23dcb93f05f3805f485a42a4d011e6165ac8649e7833e6bf52bf9b7bdb1e0329. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USA561392858.