Glenn Herbert Gould (; né Gold; 25 September 19324 October 1982) was a Canadian pianist and broadcaster. Widely regarded as one of the greatest pianists of all time, he was renowned as an interpreter
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 0x31452e3689acf78cb356965e654220c19a02e456b4b7196ec95dc98ce1e200f7. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2c4a104-3730-4df2-8c74-344da140367a.json and https://artists.proofprofile.net/proofs/artist/e2c4a104-3730-4df2-8c74-344da140367a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bach: The Goldberg Variations, BWV 988 (1981 Gould Remaster)
Keyboard Concerto No. 5 in F Minor, BWV 1056: II. Largo
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 0x6a5877a83c98308d2bfa56611140a938d78cb3b4c85b559cf024b7567fb991f4. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM15800722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6cd2599ede4f22384a415162f15c01fa0cd4c0933ea68867e1174fa0e39c553. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11409807.
II. Adagio cantabile from Sonata No. 8 in C minor for Piano, Op. 13 "Pathétique"
Build Your Baby's Brain Vol. 3 - Through the Power of Beethoven
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef12f497e6070173480b563cc34f907fc0f0af503fff8634824a0d184183cd4. 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/USSM10409810.
Piano Concerto in F Minor, BWV 1056: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e847e323849f133ee8f5d43c2cbea0f936323c56eee4c1a661558ee9a702527. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10011590.
グレン・グールド・ギャザリング
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4145378056cb64c694a879ddc6fbfdead24fb843f880a89379559c09d94dfd. 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/JPU901802631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ce06f6feb42dcff7f758292a7cf0a362cbb6ddfafa8301a76251a27a69466e. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/JPU901802632.