thumb|Gianni Raimondi, ca. 1955 Gianni Raimondi (17 April 1923 – 19 October 2008) was an Italian lyric tenor, particularly associated with the Italian repertory. Born in Bologna, Raimondi studied at
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 0x28d104dd37e0a27892f97b7dc8b164f80153ab46af636f6b6ef7d63363f07ec8. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d7b139b5-050a-4960-9f29-683e3911f31a.json and https://artists.proofprofile.net/proofs/artist/d7b139b5-050a-4960-9f29-683e3911f31a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Anna Bolena (1997 - Remaster): Da quel di che, lei perduta
Orchestra Del Teatro Alla Scala Di Milan
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 0xf3062cac78e55923d7cc8e99ab314d05463a2cc66f722c2d259885ff07fe6fcc. 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/GBAYC9705741.
Anna Bolena (1997 - Remaster): Desta sì tosto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf2dde5ffd6bb2b22516d4002f59a141145832b3d7987128c5e759f0408c6f9. 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/GBAYC9705744.
Anna Bolena (1997 - Remaster): Alcun potria ascoltarti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ad127b1f5589bd1447f1a00848cfda7fe50e35c936a75830bf86712e4f6409. 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/GBAYC9705753.
Anna Bolena (1997 - Remaster): In quegli squardi impresso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2dd469e286f8dac795b8c444b931c1294a871c4e39074ca00d8de6cea363c7. 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/GBAYC9705755.
Anna Bolena (1997 - Remaster): Ah! segnata è la mia sorte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb47273558498e2a1842c84ccc73c52757ad9db9d6dd9544023ab3cf9319f47. 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/GBAYC9705757.
Anna Bolena (1997 - Remaster): Non v'ha sguardo cui sia dato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547b8be6572cc4eb0defe97b9d41c3b530719695490bce435d767231de617671. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/GBAYC9705733.
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
Anna Bolena (1997 - Remaster): Chi veggo?...In Inghilterra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8fc83f2a3c164fbbd456547b34fb27af79e643070dfe8816d7c020d4c51a55. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBAYC9705740.
Anna Bolena (1997 - Remaster): Io sentil sulla mia mano (Anna/Enrico/Hervey/Percy/Rochefort/Coro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7f5d97dde7d80e3eb1c9a10687b775c519d29faecb75bede26e9f0a3e6717c. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/GBAYC9705746.
Anna Bolena (1997 - Remaster): In separato carcere tutti costor sien tratti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a55d762a30baa6ced85c0056e12e846f735d9cfc11cbd0119b5eb88360d4245. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/GBAYC9705756.