Osanna are an Italian progressive rock band. Origin The group originated in the Vomero neighborhood of Naples with the union of Lino Vairetti (voice), Danilo Rustici (guitar), Massimo Guarino (drums
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 0x98bf20844316841ca36002daba28369e13edf87f9a56561e9eb7c44027ae64ae. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8335aea-b179-4572-99ae-2543df2fdd77.json and https://artists.proofprofile.net/proofs/artist/c8335aea-b179-4572-99ae-2543df2fdd77.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 0x0e25011d3215391d3c72a8efbdb911c10748c4615c646716f61bb008738bc336. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ITD017103704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96156c4737bbd8372bac18ec73c480b7a67eae218ac57ecfd3522ad685a9fd8. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/ITD017103705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10abc0a78a9707e727346d9d35fa010f946adf4f84d0e84926609f74c6c8cc75. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:38:54Z), 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/ITD017103707.
Milano Calibro 9 (Preludio, Tema, Variazioni E Canzona)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33dd3b4be95952e2a3398849e3c695c1b19a8a4973ec0732adfd1b459cf7573a. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/ITD017201946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a75e5771305779867c92611f69232a5e3dd2888f7f6c908739ec9135dde6b7. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/ITD017201947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c1bdf0ea820dda55e4712a71f05b6ec687f85b6daf41ea3a578923f01f6890. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLAX70914142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c35ecbefc0b465a19d9cae15fe6754b505929d309232e176466a3b24b89fff9. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:10:33Z), 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/NLAX70914145.