Richard Yeo (ca 1720–1779) was a British medalist and Chief Engraver at the Royal Mint,He held the post until his death in 1779 and was succeeded by Lewis Pingo (1743-1830 (The Grove Encyclopedia of
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 0xbcb4b76b9cdc56795d11b4e8d152bbddb7db94edf8a8830a99ca3fa26b48c24d. 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/57fe1893-cded-4bb4-ac3f-ef6473506951.json and https://artists.proofprofile.net/proofs/artist/57fe1893-cded-4bb4-ac3f-ef6473506951.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ave Maria, CG 89a (Arr. for Choir, Harp & Strings)
Catholic Classics, Vol. 4: Catholic Latin Classics
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 0x9e75e4d99ddc751e2a8c147993d54e7a627b91ad521dd4f1a742ec5153608699. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US7850010087.
Messe Solennelle, Op. 12, FWV 61: Messe solennelle, Op. 12, FWV 61: Panis Angelicus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce8f6502e6c577ae7dbd8a815ba0d95599e4fb9aeffe9d3e300b312c5ba3400. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US7850010089.
12 Songs of Various Nationality, WoO 157: No. 4, O Sanctissima
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4561fe509880ded3255c17be5ad75e662ab3caaa6e7e622bad7ff6647e3a7c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US7850010092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03de4d3ec9ce1d09dff2c8243189a41793cf0751767edf8968ac1829c52732c5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US7850010094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6628ac0a92b6affd9e9473b3bfc7831a4a10a4a7b94138d436906fe93ba2c05. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US7850010099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c69e9b06abd69b2913a1b3a4f1fab70b7ed6efbb56f8071b5dcba369d4a8028. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US7850010105.
Ave Maria “Méditation sur le Premier Prélude de Piano de S. Bach” (Version for Voice & Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e75e4d99ddc751e2a8c147993d54e7a627b91ad521dd4f1a742ec5153608699. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US7850010087.
Messe a 3 voix (Mass in 3 voices), Op. 12, M. 61: Panis angelicus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce8f6502e6c577ae7dbd8a815ba0d95599e4fb9aeffe9d3e300b312c5ba3400. Chain 2 (Bitcoin): anchored in block 957057 (2026-07-07T15:21:38Z), 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/US7850010089.
Ellens Gesang III (Ave Maria!), Op. 52 No. 6, D. 839 "Hymne an die Jungfrau” [Version for Choir]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7d6e687377f54afef457c835e1f4acfa547dd0cce5a07ff124cea2b1455734. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US7850010091.
12 Songs of Various Nationality, WoO 157: No. 4. O sanctissima
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4561fe509880ded3255c17be5ad75e662ab3caaa6e7e622bad7ff6647e3a7c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US7850010092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03de4d3ec9ce1d09dff2c8243189a41793cf0751767edf8968ac1829c52732c5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US7850010094.
Exsultate jubilate, K. 165: Jubilate Deo - Version for Chorus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915c19f7924524dff1e38c6e03cdf3d42498856278c41c80837c97a3ed3c18cd. 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/US7850010095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b850f3c4f332ca3de0a66faffc57e5d244351207b46423e6b2be1c9110714af. 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/US7850010096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe461070a8f92f591d7fad7de602969b1819accd28b77d7a6f01f624c85f26f. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/US7850010097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe4d70def8dd9ee8764b9968f39865955cd4ea990e320de8be78336c16a47fc. 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/US7850010098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6628ac0a92b6affd9e9473b3bfc7831a4a10a4a7b94138d436906fe93ba2c05. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/US7850010099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ba1709a83f9333716057ca34d8092013f555d1de4a9ff4e3207648319d391c. 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/US7850010103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26aefdd9ef4ffc271b590ad891b3268473689c45ad80a9ecd57451f23629cd7d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US7850010104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c69e9b06abd69b2913a1b3a4f1fab70b7ed6efbb56f8071b5dcba369d4a8028. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US7850010105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb146d21bf25e8be569281a6cfef2327d0b950b23f3fc3b9cc9ca38e2fc720d3f. 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/US7850010106.