Herman Bellstedt (February 12, 1858, Bremen – June 8, 1926, San Francisco) was a well-known American cornet soloist. Early life He was born in the Free and Hanseatic City of Bremen. He immigrated t
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75e5c8d6112681ecc119f3b1e9bbfebfde6122bdf6b7fe7be4ca45c643e1bad. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5a32bbdb-5aa5-4231-9060-2be083ab485b.json and https://artists.proofprofile.net/proofs/artist/5a32bbdb-5aa5-4231-9060-2be083ab485b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Capriccio Brilliante (Arr. for Brass Band by Sandy Smith)
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd009650527c3a900e01008c95325ae1cd7a3c52480f1473b90c242df475a6ced. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD8707811 — a six-check JSON result.
Antonsen, Ole Edvard: Golden Age of the Cornet (The)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1214b7ac3ed3d30bbe2c4027ffe44b3bff358c2a98caa38982b6eb6f7037d8. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEP0698110 — a six-check JSON result.
Napoli Variations (arr. for wind orchestra)
Cincinnati Wind Symphony: American Variations
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af020eba723f4a05576e870ca9adbf140652aed0c52c5b25f929351a2b3e7b9. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNE90806013 — a six-check JSON result.