Amedeo Preziosi (2 December 1816 – 27 September 1882) was a Maltese painter and traveler known for his watercolours and prints of Constantinople, the Balkans, Ottoman Empire, and Romania. Biography t
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 0xefb99eacc537a4efbc477533314c2ce9ad4d81dc6b07c22103c59367eea7cb17. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/abe9a20f-1221-4ff6-ab16-071aab6b62e0.json and https://artists.proofprofile.net/proofs/artist/abe9a20f-1221-4ff6-ab16-071aab6b62e0.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 0xf7071a6e4fb5ba095df96208c1d44dac36a5fc57989ae0918f7e6228ecf479a0. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T07:58:22Z), 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/ITBPY2300001.
Tuo figlio si droga (feat. Amedeo Preziosi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45d112c274e830842acd70b17d898faab3c5508cfba362eff4cc7eddc6880c3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITK192300014.
Sono arrivati i caramba (prod. Parkah e Durzo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb515ddaae77e9034c98c9907ffb246f627fc023d7ec37c9e7997b35c230605. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITK192000090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a88586ff073bc6d64f19926e9bfb5f0cba2351add06f22575c8b6a5519cda4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITK192100176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb337b355b4e11a04b677ea880bfc915fbc095346b80bfe55cf841e9ffe96fe33. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITK191800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae83f88a6415ca4daac0f63f8ac94dc5760172a97e6c5f81a0fd0e50b31217c5. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ITB002000347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1944e9e840776c7bf05c7022271a8a9b08dd77090e78c356da2d4aa7570a3e9. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/ITK191800248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c4ce96f9453c0f69d7d41295eede96b327a0cb2d88f70022ecf5ad3089ac4f. 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/ITK192000099.
C'era una volta il Sabato sera (prod. Matt Joe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31ceda5addedd4c3460b73b42e18e48015bf7e452441927a8ea3d3110beac58. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ITB002000707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae83f88a6415ca4daac0f63f8ac94dc5760172a97e6c5f81a0fd0e50b31217c5. 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/ITB002000347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae83f88a6415ca4daac0f63f8ac94dc5760172a97e6c5f81a0fd0e50b31217c5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITB002000347.
Faccio la brava (feat. DJ Matrix & Amedeo Preziosi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677723c880e6dd338da85091314cc6190cf65c5aac7538c61858990ca4899905. 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/ITK191800011.
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 0xe81b8b0017db387dc86a140e167f9a523768f47debd02e78638cefeb8185cec0. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ITK191600158.