thumb|Angélique Ionatos in 2016 Angélique Ionatos (Αγγελική Ιονάτου: 22 June 1954 – 7 July 2021) was a Greek singer, guitarist, and composer. Much of her focus was on setting and singing classical and
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 0x6d4a387c26d090263f056fe579080c5f64192c7f6ae6015cac3f0f8d966e3318. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/47c66196-b897-438e-87bc-16a90345d628.json and https://artists.proofprofile.net/proofs/artist/47c66196-b897-438e-87bc-16a90345d628.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mia Thalassa (Inoatos chante Theodoraki)
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 0x5650b5b705e11ae8aab17dcc91f9ccba785a1b387d2f825a9fce02d843322ea5. 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/QM4TW2232819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd57ec3419520ce029bd20ce711e5ce712868c2a5e4b8453bfc5ed927fba065. 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/QM4TW2232820.
S'agapo Ghiat' Is' Oréa (Je t'aime parce que tu es belle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b645a3cd0252621a65ccec01d454775607f576927686fb938e17460c50663c. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QM4TW2232816.
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 0xf683873858b65b26971dcf9fcfe16c9c65779c58345aedb3678bc732a5dfde3c. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QM4TW2232821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d14e7860af7f3e79a417c40b731181afc02ceb87551b74c7066c32d2241343. 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/FRZ130030210.
To Tragoudi Tis Limnis - La chanson du lac
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780ea92299ae571e1c0ae0e369f4eb55fc73b631731ad929caa0612362f68067. 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/FRZ130030230.
Alas Pa' Volar (Angélique Ionatos Canta Frida Kahlo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98fb5b9515c057c76fe1fcfe14b1ccdef1c6ddd49382a200991674455a86064a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR47Q0300100.
Sappho de Mytilène (Parole de juillet) [Deluxe Edition]
Sappho de Mytilène (Edition Deluxe) [+ Parole de Juillet]
Comme un jardin la nuit / Like a Garden At Night (Like a Garden at Night)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e97838263c0bdfed2cf24d950b599ca3267a4b89e2fc43054eb3ba12a904b9. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/FR47Q0506660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3111b58b3352cee51d22215eff1e41960c079a042223c15e6b8f6f2857d582. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/FR47Q0506670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f2d09bdbda4ce7f6b171de74aa6ef2a8ac376d87be666e12157d9ce4b7be6d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FRZ139441090.