Cappella Strumentale del Duomo di Novara
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 0xfd32add458faff9ee4fb78137b86c98bd770e48260088a4ae6703b0a7f5cd697. Chain 2 (Bitcoin): anchored in block 953678 (2026-06-14T19:23:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/61c3d743-c0cb-4a6b-847b-06f10f7984b4.json and https://artists.proofprofile.net/proofs/artist/61c3d743-c0cb-4a6b-847b-06f10f7984b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Leonarda: Sonate a 1, 2, 3 e 4 istromenti, Op. 16
12 Sonatas, Op. 16, Sonata prima: I. Allegro
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 0xdb6e2927e629b325836d4ba1ddc9cdd7cc312af78bc8848aab1f582c3e8ea359. 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/DEU241113077.
12 Sonatas, Op. 16, Sonata prima: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd222f30c1981943cbdb0c386cf9853ace361a888dc608bbc4efbfc9ef42fc289. 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/DEU241113078.
12 Sonatas, Op. 16, Sonata prima: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa1b62272b26122126538d8696f0012129678399fc70fac529ad9e3b2719810. 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/DEU241113079.
12 Sonatas, Op. 16, Sonata prima: IV. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1446e61f560514bc3c3a01921fdec9636c9ee75eb13f09aa1ec4f90d1cf0f4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEU241113080.
12 Sonatas, Op. 16, Sonata prima: VI. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e04b71da525d5c2e3637b5e4402ca6d77a4aed1589d3e36cb9b5eb3f11a600d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEU241113082.
12 Sonatas, Op. 16, Sonata seconda: I. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b91fab55ffcb50dc0f2694f9124f190a8648eb6e3a450a9055710aa55497cc. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEU241113083.
12 Sonatas, Op. 16, Sonata seconda: II. Spiritoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691aa988022c7de52d916d65bfc2f5af8da41852854eaa3eb21e117ed1d1961c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEU241113084.
12 Sonatas, Op. 16, Sonata seconda: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564b1f51b099d17addef419185b70c64cc4b85d206ace949fda5d4cff5e0c0a6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEU241113085.
12 Sonatas, Op. 16, Sonata seconda: IV. Adagio - Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd01a7d225ef51a6a5baedaf70b4b9e6dc7d28cd9db01f9fe60be757ceffff4e. 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/DEU241113086.
12 Sonatas, Op. 16, Sonata terza: I. Adagio - Presto - Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2da4b1005eddfc2d23642ba6c192f91ff76d3d98f32bc2dbe8a8e04cc6e15fb. 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/DEU241113088.
12 Sonatas, Op. 16, Sonata terza: VII. Presto - Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe612f7c22f6089bfe030aa7eb57f5e3b6b786801379ede331ff7afeba33cc9a. 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/DEU241113094.
12 Sonatas, Op. 16, Sonata settima: III. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90d5c5bfec55a49f1dce0c73162462ba379e8b09241d2befcd3fb4020a62bf0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEU241113117.
12 Sonatas, Op. 16, Sonata prima: V. Soli violini
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3955d8dc16085c6efe6663f317e4c3389528cd41a60da7b6225c4fedc17ddd5d. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/DEU241113081.
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
Twelve Motteti, Op. 6: V. Ave suavis dilecto, con violini
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3a627aa539af4a9f439452d36ade998ee5b77232ef05be0bd6e3bea7c60be5. 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/FR10S1764224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0b14420d4385f8d78836aaf510f5dac83585b67c51773520235d3e9e0b72ba. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/FR10S1764222.
Litany of the Blessed Virgin Mary, Op. 10
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cac75582be6c8526d6dec4d7900243a5e5be7b7821cbde52fc3ea0da3f3b3a. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/FR10S1764225.