Alexander Lafayette Chew Wilder (February 16, 1907 – December 24, 1980) was an American composer, author, and radio host. Considered one of the most inventive and lyrical American composers, he wrote
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 0x973e0e564d81d18236dba6e4df2e01384ca9970a0840152b653bcc21219851d8. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/31a39422-14a2-46d8-a5fc-538120865862.json and https://artists.proofprofile.net/proofs/artist/31a39422-14a2-46d8-a5fc-538120865862.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Alec Wilder, Christer Danielsson, Georg Friedrich Händel, Georges Barboteu, Johann Sebastian Bach: Tuba Tubissima
Take a Walk on the Wilder Side: Flute Music by Alec Wilder
Music for the Lost Souls and Wounded Birds
Alec Wilder: Suite for Flute, Oboe, Bass & Harpsichord "Baroque Suite"
I'll Be Around (Arr. Bill Charlap for Piano)
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 0xd610e5bdc9439cd8fae12865ebce20d94b57c6d507b5494dda6ba042d1dd795b. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/GBBBC2100367 — a six-check JSON result.
Pas Seul - Music for Piano by Alec Wilder, Vol. II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd610e5bdc9439cd8fae12865ebce20d94b57c6d507b5494dda6ba042d1dd795b. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBC2100367 — a six-check JSON result.