Cappella Neapolitana is an early music ensemble based in Naples and dedicated to the recovery of Neapolitan musical heritage, primarily from the baroque era. thumb|250px|Cappella Neapolitana The ens
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 0x63e7fe4eaccffa7fc0b09a0f1dba58177e7c6f138d4df359fda9a58ed00631af. Chain 2 (Bitcoin): anchored in block 953782 (2026-06-15T12:13:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d52f0cb4-9857-4eca-825c-c3f0fb4558fd.json and https://artists.proofprofile.net/proofs/artist/d52f0cb4-9857-4eca-825c-c3f0fb4558fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x081184493f02935b2b2e790e5988de8568a01f2f59b041775efdfebd40faa5f7. 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/GBAYC2003579.
Vivaldi: Farnace, RV 711, Act 2: "Gelido in ogni vena" (Farnace)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9797acd47da913cb26696c80788c0b6d4564890577ebfca321638193caf921b9. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/GBAYC2003578.
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
Boerio: Bello tiempo passato (Rev. & Reconstr. by Antonio Florio)
Tormento d’Amore - Provenzale: La Stellidaura, Act 1: "Deh rendetemi ombre care"
Provenzale: La Stellidaura, Act 1: "Deh rendetemi ombre care"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332f64a5e6cf2e0a29d9cc8b1d9608f405009c77c741234c342b199cffd44db4. 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/GBAYC2003570.
Responde mihi: Liturgical Music in Baroque Naples
Didone abbandonata, Act I Scene 5: Son regina e sono amante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261e15c6164aadc0aa675916be61a459ae95b1ee57993831ae1fdf7c0482ba5f. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/NLE422436101.
Ciro riconosciuto, Act I Scene 5: Ognor tu fosti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b682c2b81a26fcfd63cde8399ba5208170b7a0390cceeb3955e70da8ab3821. 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/NLE422436105.
Artaserse, Act III Scene 5: Mi credi spietata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae3a18df59fbbfed17fc3c1f83c8b74518bc6ae260d508570a794cf5b824f26. 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/NLE422436106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7127645d1a7cca01d06720e7d306ba1d7dd0b12115e94234fff61c68f7d683. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/NLE422436109.
La capricciosa, Act I Scene 12: Signora padroncina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c26882be095b30069ff6664682a00bf85622413b88805fefd650db8f1c6118. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/NLE422436102.
Didon, Act II Scene 3: Ah que je fut bien inspirée
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d8fa744cb54874d3a96637a33e53a3a35edf6396eb7b1c8fa1e55064512e5d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLE422436103.
Zenobia: Sinfonia. Allegro con spirito - Andantino a mezza voce - Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209fb6f4c2897fc10a945511de987bfb85538fb1ae2905dcc6a24b7ab325aa6e. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/NLE422436104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6effd66dcc31b8d432a909d59daf55b71560a97b067bf97501631a6b28361b33. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/NLE422436107.
Le faux lord, Act I Scene 7: O nuit! Déesse du mystere
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b764844ee5ed44fd83977752f41a70241ff6a888d53e0b24d75c243ed188958. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLE422436108.
Atys, Act II Scene 8: Tremblez ingrats de me trahir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac665c0df9d0f524df519db2b6460ed14c9675927166ae795e6626d88c7a39a. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/NLE422436110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100a75f20efcf27c04c1ea4ad744029f3e0ba547021fb1c126197cc24a2623b4. 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/NLE422436111.
Lo stravagante, Act I Scene 5: Majo p'e la capo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5c7d41e11c44a5a36e04aee77db9a15d7cbfc4345592d4c52d4f4f3fe0d6ae. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/NLE422436112.