Peter Breinholt is a recording artist in the Salt Lake City, Utah music scene. Breinholt grew up in Philadelphia, where his father Robert H. Breinholt taught at the Wharton School of Business at the
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 0x11e569f623633d38571e77e73f15f091cdb02a2617086274997183e1021849d9. Chain 2 (Bitcoin): anchored in block 953782 (2026-06-15T12:13:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4f5d174-cd43-43d0-8f8c-c4b4b16980da.json and https://artists.proofprofile.net/proofs/artist/d4f5d174-cd43-43d0-8f8c-c4b4b16980da.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 0xb1ae684cc88aa1b8c399d262e5177d29f429f00f47ef9f1e3d8199486682c264. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USHM90416060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77aabfe1aeabe0343a81db725f769c783b3cf6114120a3ea139acf967981ff3b. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T15:53:49Z), 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/USHM90416094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd60c8206538135d7729a53ca741395dd451d5bb564cef545daa738ddc3cd00b. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:08:21Z), 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/USCGH0880244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc1d86cf2a38e4e30d897650fed7cf14ed02215f907db38c62814d672b53eab6. 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/USCGH0880250.