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 0x3d96e4339e561cfc30cd786c62d0cc9ad107484a1895c7db1761ba2922960792. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b7658eb5-ac06-48cd-b516-f9cfc7207208.json and https://artists.proofprofile.net/proofs/artist/b7658eb5-ac06-48cd-b516-f9cfc7207208.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kirkby, Emma: Musique and Sweet Poetrie - Jewels From Europe Around 1600
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 0x4b256b01be2c3241c88c342808783b77c50ee0596da4f3ec97e11b467b299c41. 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/AUAB00851011.
Chorale Prelude, "Wir glauben all" in einem Gott, Vater", BWV 740 (Arr. William Gillies Whittaker)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328bbe3902fcded8a9d9be1c7df43fbfde65740e48617d647b39782004f71b91. 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/AUAB01350015.
Harp Recital: Galassi, Mara - Dentice, F. / Luzzaschi, L. / Dell'Arpa, G.L. / Mayone, A. / Raimondo, P.P. / Trabaci, G.M. (Il Viaggio Di Lucrezia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18509c41d4225f4c53ca3e2a91c660bb78db30577af7da5cfb9e4798ad30e919. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES7899900501.
Meraviglia d'amore: Love Songs from 17th Century Italy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28111f807f648c3fc73bc4c3872ce9ab10115fdd8272c2a9bc7e6e2aac6bf07. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DECP61703002.
Sonate di chitarra con intavolatura franzese: Ciaccona
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa707086590ddd74cd690ad6e704ee53c0ec7dbed5646207257aba91d9d2f856d. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/DECP61703004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3ed989893c51e94c45c793d53a4fed3c7fc3a428425796df4613cf1786f9c2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DECP61703007.
Varii scherzi di sonate, Book 4: Passacaglia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fd69c8f4d35389658dc2f2f517329d3369f340d20382f2f3f43a3aeab21aeb. 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/DECP61703008.
Intavolatura di liuto, Book 1: Toccata - Volta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bce6cc9fc9032f1594061d71ba39aa96652ac95da01246cba1d2c9acfdfa98c. 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/DECP61703012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14d1763bf29f93c6e796aa0b8434726344c85055a7416edfb52fddeff629753. 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/DECP61703016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ced76514a746c131d0ff455095dd30cdba32e7eec86a7fb49ba26a02b0dc405. 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/DECP61703019.
The Galileo Project: Music of the Spheres
European Renaissance: Music for Pleasure
Galilei: Il primo libro d'intavolatura di liuto
Forlorn Hope Fancy: Renaissance Dances and Fantasies for Lute
Scienziati musici nel Rinascimento e nel primo Barocco
Lute Recital: Timofeyev, Oleg - Kapsberger, G.G. / Melli, P.P. / Bernia, V. / Galilei, M. / Ballard, R. / Grotte, N. / Vallet, N. / Timofeyev, O.