Damiano David (; born 8 January 1999) is an Italian singer and songwriter. He is the frontman of the rock band Måneskin, which won the Sanremo Music Festival 2021 and subsequently the Eurovision Song
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 0x6f1ff88d9ae527349e7e47fa101df47fe6e73d8137c439e93b99d3b9f8781359. 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/8f67887a-51da-4086-b541-ec0ce9096a39.json and https://artists.proofprofile.net/proofs/artist/8f67887a-51da-4086-b541-ec0ce9096a39.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 0x88f9023aa58ad50d5a86928a329240843c5bc7d229184fdbf92f829f3d3716d5. 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/ITB002500183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24dbdf470caa79d3f48b6322866cb508cb789b61a86f2404f18af56902ec91cb. 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/ITB002500184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02e6b605cb0586653186f3dde299205d04f6a2e6c4635e10276536279371c02. 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/ITB002500107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdada8feaa59cc0ad8947db8b74338ffe423eaf999aaceffebbbc3537dd0a7553. 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/ITB002500178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86520251889e59fd44440c3e3c441331e6f4959a5e8e6f3cd111d012ee456528. 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/ITB002500182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4cc76aa1ab2ac89e93038554ca80065132cb0caaa97a8a1a8793939f377bb5. 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/ITB002500185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6d39fe87bc8499762343b101b0c367188bfea64ad81fba4f312b8ce093e6b6. 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/ITB002500186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a052cdac12029bfa557becbcb9560d5c099a83e614490b3c07c4656eb62ddb5. 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/ITB002500177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3699a89bc3ef0d2efbe4184c4b78bfaebf9239cc271b47d6a64780573c0d0b2. 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/ITB002401158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e86527896c33cd4df3d8f2b39a8969f2991def8bd06b2cd318fcc41b3c098d. 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/ITB002500179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089f9c738cdba0cd3d86c92b5d3ecc117c1c892d24ac273002057100c7c223d3. 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/ITB002500180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f47aa812652fa66801502db61cb9637ea492a468583fe1e6302eab9b28448e. 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/ITB002500187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265f6b88d94edf483e3d721bd2507632a46be58fdcd37ffe4f47e6ef53c2985c. 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/ITB002401013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273a5e8ecaf94f057cb80c985c8e0da10c8f7cc0099097dc94ede4f9cff70dbb. 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/ITB002500181.