Ivana Spagna (; born 16 December 1954), originally known simply as Spagna, is an Italian singer and songwriter. She is best known for her worldwide hit song "Call Me", released in 1987. Career Ivan
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 0x8f2a92e00afc96a57061251d4237384ed95ed4659ee4916cff014ce8e92c555f. 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/91dfedaf-7051-4743-a3da-a07ffc768f76.json and https://artists.proofprofile.net/proofs/artist/91dfedaf-7051-4743-a3da-a07ffc768f76.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 0x94d74904f5031f4f63ecbc52cbeddc33451dac5eebcfc94034b4c5b18c8f5502. 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/ITB001000225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ac57f25eadb39d179b55fbf0be9504fc1f5b3c4edc31421921bf9bce15ca70. 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/ITM000102883.
Happy Station (The Cube Guys Trip Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12983d99cab8ad3b9a1a55697a95cae34cd941163f3fb5522b5ab3678511958e. 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/USA2P2428433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc95fc254f8a7ee7253b9f7751153f30f30c67883be3f127fb4e87b1c1a5b282. 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/USA2P2403428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ac57f25eadb39d179b55fbf0be9504fc1f5b3c4edc31421921bf9bce15ca70. 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/ITM000102883.
Il Cerchio della Vita - di "Il Re Leone"/Colonna Sonora Originale
Il Re Leone (Edizione Speciale/Colonna Sonora Originale)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f4ac370efdf785c663a5f08cb1a67d78f81669bfcb4bef4baa35d91a7c9e88. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWD10524316.
New Italo Disco: Reloaded Hits & New Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373e95ff9612f5816f09805814401f04c9d7d5812b1a97194a198491a06760c9. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/DEB550400101.