Guido and Maurizio De Angelis, also known as Oliver Onions, are a prolific duo of Italian musicians, multi-instrumentalists, composers and singers, as well as television and film producers. They reach
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 0x4787dfe23c4575fe1c9680ac91ebebd40747c879a2978e160ee5e2f6ca6f0a4c. Chain 2 (Bitcoin): anchored in block 953618 (2026-06-14T09:16:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1dba90ae-2495-41f9-ab5a-2735451600cc.json and https://artists.proofprofile.net/proofs/artist/1dba90ae-2495-41f9-ab5a-2735451600cc.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Trastevere (Original Motion Picture Soundtrack)
E poi lo chiamarono il magnifico - Man of the East (Original Motion Picture Soundtrack)
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 0x9ca668ef776de4ed3ddd0a0174b36f82630fb7cdb0d749777f9fe8ff945a4dbe. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITC460900877 — a six-check JSON result.
Canterbury n.2 - Nuove storie d'amore del '300 (Original motion picture soundtrack)
Milano trema: la polizia vuole giustizia (Original Motion Picture Soundtrack)
Arrivano Joe e Margherito (Original Motion Picture Soundtrack)
Il cittadino si ribella (Original Motion Picture Soundtrack)
Il grande racket (Original motion picture soundtrack)
La tigre è ancora viva: Sandokan alla riscossa! (Original Motion Picture Soundtrack)
Goodbye & Amen (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f6ced3ef2055f646778d87f4f176eda8b2e8fb6e3ebfb789fc14441fa970f5. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITD811341801 — a six-check JSON result.
Mannaja (Original Motion Picture Soundtrack)
I corpi presentano tracce di violenza carnale (Original Motion Picture Soundtrack) [Remastered]
Orzowei - Il marsigliese (Original Motion Picture Soundtrack) [Remastered]
La moglie di mio padre (Original Motion Picture Soundtrack)
Tedeum (Original Motion Picture Soundtrack)
L'arbitro (Original Motion Picture Soundtrack)
The Adventure Film World Of Guido & Maurizio De Angelis
Original Television Soundtracks Collection
Vintage Italian Soundtracks: Spaghetti Western
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe03657a6248639d16abdef99e6f1438e5da936eb3448ba2675ee3e32c35c3a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITF730701338 — a six-check JSON result.
Tema di Candida (From "E poi lo chiamarono il Magnifico - A Man from the East") - Version 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78f07fd37392a3a343175d686135cf3f2674e26fcfb2699f5e766bc9f1a3dd3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBHGA1527264 — a six-check JSON result.
Made in Italy: The Best of Italian Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc24fd82c3e2fb51f9a37c990c11f4f18a846ebdea49a71081f74314b324e0d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRTRB2020877 — a six-check JSON result.