Greg Funfgeld (born May 29, 1953, on Long Island, New York) is an American conductor, especially a choral conductor. He has been the artistic director and conductor of The Bach Choir of Bethlehem from
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 0x3b0774491d1b3ebff2f066bc6b5a74b6a5d0294be5c5d0a6fd2f3851b5e8d98f. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dcafb044-3b03-40c2-9ea3-ee07ee0ead61.json and https://artists.proofprofile.net/proofs/artist/dcafb044-3b03-40c2-9ea3-ee07ee0ead61.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Christmas Gift - A Dorian Holiday Celebration
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 0xdb7f93f2f9a039bfad6404533769aae4baf7df4f158a389aa5bd74a6d19c76dd. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/CALC40900131.
Bach, J.S.: Ascension Oratorio / Jauchzet Gott in Allen Landen / O Ewiges Feuer, O Ursprung Der Liebe
Bach, J.S.: Cantatas - Bwv 56, 140 / Ich Lasse Dich Nicht, Du Segnest Mich Denn (Wachet Auf!)
Bach, J.S.: Christen, Atzet Diesen Tag / Sie Werden Aus Saba Alle Kommen (Christmas in Leipzig - Choral Music for the Nativity) (Funfgel)
Bach - Magnificat BWV 243, Cantata "Gloria In Excelsis Deo" BWV 191; Vivaldi - Gloria RV 589
Magnificat In D Major, BWV 243 : I. Magnificat anima mea
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1150273f32213914baf625ad0c7da0c72aa7a77d24f59c474f7526c6a01ea2fa. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALC40900100.
Gloria In D major, RV 589 : I. Allegro: Gloria In excelsis Deo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484dc96e75c4ac060359960b834676ca3390207a656e744c771b13af87843ec2. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/CALC40900112.
Cantata "Gloria In excelsis Deo", BWV 191 : III. Sicut erat In principio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6fe0eb32e7c5cee0571a7dd36918631ccdd69b29ea9189948b3132f94ac6af3. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/CALC40900126.