Sarah Toscano (born 9 January 2006) is an Italian singer-songwriter. She rose to prominence in 2024, after winning the twenty-third edition of the talent show Amici di Maria De Filippi. Early life a
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 0x1f012411184bfb8819b9163ca48c7b6e1057ba9dec02ab156069e3ee252dcb25. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7172d1b-1551-4279-ad02-94fe1bf7ae53.json and https://artists.proofprofile.net/proofs/artist/f7172d1b-1551-4279-ad02-94fe1bf7ae53.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 0xea3b97a248afdc0a679c1b3e51a2670521597174ca028f85ad36e59feadddb45. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITU232200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa690c823f28831353263f67afe00e29145e36bffa4adba1863a2366d26bf2c0c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T03:44:30Z), 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/QMFMF2304728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c6efd07c7199da542e07d1c3e7ce0b015613beb6244c389d5a198b35d776c7. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QMFMG2338401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0cf62c1289f6c7cdb7931ea524184fc1f175e3cb75f1f2519423fba565eb29. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QM4TX2430088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c6efd07c7199da542e07d1c3e7ce0b015613beb6244c389d5a198b35d776c7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMFMG2338401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0cf62c1289f6c7cdb7931ea524184fc1f175e3cb75f1f2519423fba565eb29. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/QM4TX2430088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34a55241c3956b4524a0ecf1023e13b7c864cdee7a6badabaebba396da3a8d7. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:06:25Z), 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/ITQ002400360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13c6b42878344dcdfd6795171cde008ddeb8ceccb43b6aeb8a6586b7446d2e1. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/IT5592500053.
Semplicemente (from the Netflix Series "RIV4LI")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651ee014e5e47a4c04d437c827fa6d2474a3482d95027dd22508a2eabeb29309. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/ITQ002501432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4350bed5b504401ca2928b223d3e3393cf2f22888178447ea1a0d0f6866d97. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/ITQ002500989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc232ed7ef981070893d04e773851e2347e777c61ac3490ff45e99ea578273ac6. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ITQ002500317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05757121ef302e2ff3e3103d62cf7629e101673ee48c669835339f736738094a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ITQ002401304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05757121ef302e2ff3e3103d62cf7629e101673ee48c669835339f736738094a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITQ002401304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc232ed7ef981070893d04e773851e2347e777c61ac3490ff45e99ea578273ac6. 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/ITQ002500317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc232ed7ef981070893d04e773851e2347e777c61ac3490ff45e99ea578273ac6. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ITQ002500317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c758d63871d28706a545bfb06b480e435007ef1ef2356323e9b5472a531392. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QM6MZ2487805.
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