Gatto is a surname. Notable people with the surname include: Alessandro Gatto (born 1994), Italian footballer Alfonso Gatto (1909–1976), Italian poet and writer Alfredo Caruana Gatto (1868–1926),
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 0x3718e1394a7524195e92595ad7388db62773ad1c9ffb1c79a1a633c8c68c88aa. Chain 2 (Bitcoin): anchored in block 953614 (2026-06-14T08:40:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/19019cc6-22a0-4d88-ba9d-f6c55e5f1cfc.json and https://artists.proofprofile.net/proofs/artist/19019cc6-22a0-4d88-ba9d-f6c55e5f1cfc.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 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 0xc61b2b0aa956a4d3733852812f8a3c45b745bab5eb0d0ebe93d5baba05a31511. Chain 2 (Bitcoin): anchored in block 957634 (2026-07-12T00:26:43Z), 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/GX3Q92505466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbacc82f2be778b40314b3871e9608980ad35e6fd4e0a372e6875476e738c3db0. 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/ITCO51750056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec92e865e2ba0e06f2cb3ba914ce6a8685b3d32f92ee88c33ffc773fe577f1ce. 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/ITCO51750044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ceaa9e1d01836c218676a685b4fae68a1d7aac2804a1c5ef9e82e587dd055f. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/ITCO51750057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe825a4c792e369f55836c071c088c3509796100897113d4fe25a16f3d37b41bb. 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/ITCO51750043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96cd049e33ac10c484767f49f570ebc10cea49cf6ce44a05a70b1d4a5076fc93. 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/ITCO51750050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84a6e6e2bdf811483bafffd99763981dea21f577799c343f597c14667569c24. 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/ITCO51750051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc36f748419d4487287246e241250df29dfc7feb6c259bf13680223a0dd571c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITCO51750047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe3c0bcaa018f6fdce1b9a3af2fde2a9379d6a038a5a06a402a9842924d88aa. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITCO51750048.