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 0x14e3be78e5ba6c67e8462e5c9323d8f42ba230226c67bce504868d31c59adcb2. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/38e27419-3d45-4aeb-b580-a9a788db1d54.json and https://artists.proofprofile.net/proofs/artist/38e27419-3d45-4aeb-b580-a9a788db1d54.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Giulio Cesare in Egitto, HWV 17 / Atto primo: Recitativo "Questa è Cornelia" - Live
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 0x86a419d202e187c86fc79d8b63bac8cf511ff59683a8a41ced821b46662b7d05. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEN960231505.
Giulio Cesare in Egitto, HWV 17 / Atto primo: Recitativo "La Reggia Tolomeo t'offre" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d892e5540f98247a1fe2265bbc846389908815bb1d2f4f816b20db976cfa5b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEN960231506.
Giulio Cesare in Egitto, HWV 17 / Atto primo: Recitativo "Già torna in se" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e9e5e9065add68529ad80e5c0fd641eeeabddefebbd3a70212f0f8961c6005. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEN960231508.
Giulio Cesare in Egitto, HWV 17 / Atto primo: Recitativo "Regni Cleopatra" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82bf91ef8c0dd5150bb4befc2e5b18b02df0c986c22309c43cd32b2200e230ba. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEN960231512.
Giulio Cesare in Egitto, HWV 17 / Atto primo: Recitativo "Sire, Signor!" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89f545e68501d8c8e449dad0699bce20b30e471b50fa68630522818ef11c4d3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEN960231514.
Giulio Cesare in Egitto, HWV 17 / Atto primo: Recitativo "Quì nobile donzella chiede chinarsi" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192a002734689c76cad7d0ed7275d30d46d8a13c360fcb68fa8756231c590bb4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEN960231517.
Giulio Cesare in Egitto, HWV 17 / Atto primo: Recitativo "Cleopatra, vincesti ..." - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859a7640885129c8f775c941b730d4e222e7d27fb4e7a64e06c9b8524333eda5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEN960231519.
Giulio Cesare in Egitto, HWV 17 / Atto primo: Recitativo "Ma chè! vile e negletta" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71a6f808d28e21551873522f03cb5ce692456b13d6f8584a54c8d89e19fd0b7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEN960231522.
Giulio Cesare in Egitto, HWV 17 / Atto primo: Recitativo "Cesare, alla tua destra" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a58f7f696b48e0b86d3fe43c6c71f85f92a94de9993cac4be668a4b74663c08. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/DEN960231524.
Giulio Cesare in Egitto, HWV 17 / Atto primo: Recitativo "Sire, con Sesto, il figlio" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e83af0b4f53d5fa8be6164a8b8e951076138c064c11a378557ecc76d5c010e. 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/DEN960231526.
Giulio Cesare in Egitto, HWV 17 / Atto primo: Recitativo "Cornelia, in quei tuoi lumi" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf353fdc77bd179d73e80587065a4438c267bb035246a673f6b048d8f1807708a. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEN960231527.
Giulio Cesare in Egitto, HWV 17 / Atto primo: Recitativo "Madre!" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5520c102c18475f0e5da263cfe22a7ddafb218a881646bf203ca7ff1e5f956. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEN960231529.
Giulio Cesare in Egitto, HWV 17 / Atto secondo: Recitativo "Eseguisti, oh Niren" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d7cbe08db1d2ee7694de688655f276b0ae3063bab209c728e012081c4529a7. 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/DEN960231531.
Giulio Cesare in Egitto, HWV 17 / Atto secondo: Sinfonia e Recitativo "Taci" / "Cieli" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f52e8a7185f4a977407a8683eb9af9db2647c31bff9242b9ccb14269433d87. 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/DEN960231533.
Giulio Cesare in Egitto, HWV 17 / Atto secondo: Sinfonia e Recitativo "Giulio, che miri" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da3dec3732cba78236df794a26992aa19f4020d53686b5c65219328abcfe6af. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEN960231534.
Giulio Cesare in Egitto, HWV 17 / Atto secondo: No. 17 Aria e Recitativo "V'adoro, pupille" / "Non ha in cielo il Tonante" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4d2780e18d1dc47cfe5149efd6eaf14b08dafa3286246cdf71d67c2c975b7b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEN960231535.
Giulio Cesare in Egitto, HWV 17 / Atto secondo: Recitativo "Vola, mio cor" - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0396fdc935210ff50e6d05201a399b57654c1c443d02008acccfa2e1bb9b535. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/DEN960231536.
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