Antonio Astarita (14 April 1939 – 15 April 1998), best known as Tony Astarita was an Italian Canzone Napoletana singer. Life and career Born in Naples, Astarita made his official debut in 1962 par
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeafaa2496792f6fe0571dfc3d375019d27771ea6b3a3349a031e0a922a66f67. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b77d836c-a172-47b9-9f45-5893515684f5.json and https://artists.proofprofile.net/proofs/artist/b77d836c-a172-47b9-9f45-5893515684f5.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07bb5b57c940a8c14feb57fcc86a2d0f68014de2351868699362a67a817c2b27. 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/ITG019802783.
Antologia Sonora Della Canzone Napoletana, Vol. 13
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c862f3c414053c6905e72a0ad477ff9a4c9e7bb0f19a456dd6775bb5a699b0. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USA2P2357334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b0089e8f4616ddb4238d6ba67bb9cbdcf7ad4f30335ba2e6b1b57c60eae028. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USA560761567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9e4c55b596085de239abf7722cd01e8e9f42788a736c4642007cb75fd21499. 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/ITG019803583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c85b87420d9e8ec2265065d840911e891254e138d75b916bf527ec2f221523. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/ITG019801795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba616ca0db638cb451fe60385131120ff822577e742b2fa89418a714414eb68a. 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/USA560561502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad27d2ba7f1f294ce998cd67df9b1ad3f6bcdc34b639bf91712798e98255e69. 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/USA2P2336436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9101f2eec19039ad259982c8bf1444b9c754066c29b8411262f36593fdbc3f. 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/USA2P2336441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489107ca9166fbd264c2a07854b6c5ecf1a7fef82a304f38db8bf75696db5048. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USA2P2336443.
Core spezzato (Best Neapolitan Classical Songs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fa97973370ba6133a5bbaa6da9a1d4787ad61f6ecd43a5709fd8e395542754. 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/FR6V81304214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6c72504e55a2e8a14bb12b5ed0b4e36663a797b8caa47e1bc9f287c85de231. 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/FR6V81304217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9ecfab914762bbff34a5d9fa2de1d6dc67fe08596e751c4497cda1f2b6507d. 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/FR6V81304219.
Antologia della canzone napoletana, Vol. 1 (The Best Collection of Classic Neapolitan Songs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531aa8883b792400dfe503af088b2f875303789326983c465b0b1b0b431b6f44. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/FR6V89302740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5242686ac9257ea5e7fbf2b242099f36eb7aa39f8a9d50af289b6cc2776863ca. 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/QM6N21477879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67cbd8b0b4170b222f6d2df569ef98ea6f9ac1892de3982341cf6707c8e1678. 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/QM6N21477880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4a153a42aafdf284ea86cd084dae73facd41e1bf000c30735930357cb61a1a. 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/QM6N21477881.
Antologia della canzone napoletana, Vol. 7 (The Best Collection of Classic Neapolitan Songs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7631cc6b5d3f4bdd412d69e860958670a724891c829957c0a6c0773ea56355. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/FR6V89502922.
Antologia della canzone napoletana, Vol. 6 (The Best Collection of Classic Neapolitan Songs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee2ef77d88ab447c567b3b7659cd30afd1f1172eeeb4a376862f97f34b65614. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/FR6V89402864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34ea31fb73561c8a9e33238cb23a94f91de83f280adb3e9d5d57069e2c2ca0e. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/FRX991581091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b46ef24774f1abcf4fccd120e26b7673e04e7de25a176ef27f0d69de2e8a2a. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/FRX871532043.
Antologia della canzone napoletana, Vol. 4 (The Best Collection of Classic Neapolitan Songs)
Antologia della canzone napoletana, Vol. 2 (The Best Collection of Classic Neapolitan Songs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdadf5da841fdaa2866a7b70b510c10bfd9b932270f91ea7c4fcccee50d5c6957. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/USA2P2441228.
Ricordi del Festival di Napoli, vol. 1 (1952 - 1957)
Antologia della Canzone Napoletana (Neapolitan Songs)