Muzzi is an Italian surname. Notable people with the surname include: Antonio Muzzi (1815–1894), Italian painter Domenico Muzzi (1742–1812), Italian painter Oreste Muzzi (1887–1946), Italian swimmer
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 0xc0150e86be197f6e036273dfe345b89d985f2ed0c1e75a5455b6b3a5dc202daf. 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/f36235ab-e42e-4556-8e48-60bba0a25760.json and https://artists.proofprofile.net/proofs/artist/f36235ab-e42e-4556-8e48-60bba0a25760.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 0x2d237743e2ac623dd2a02d58895f4c60115eb4411b4d64856819e1ad42d1a23a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BXIV82267642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f6a1b910d3b5d2c00c045ab1d4d8d94962523dab4a037d8aeb1bc16c67ade2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNJX2268631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8934fc7b300dab6e9c6a2b96f2b8f17e345e3cd4a32558cb1a2acaac7b2ce9. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/BXIV82260231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46c8fe8f83b509e5cbd06c635d44cdcd61965d9253510a0ac9d39e29170bcc6. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/BXIV82288648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8269fd2521587bc6fb9c3bef206f7895b1afb9daf8e5619282326ae2f53acb3e. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/BXIV82315777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86e3a1b6da83a3f713f3332fa93ecbf1667d446e30716dbd8eec5dcfb8d4949. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/BXIV82381186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f07543ba1edb324fa9e605ef6b2369ab8f00f04c9e6bdf7bb16d082314711b1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BXIV82358086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa70e162469befde2d9a1a9746be3414c4c7671ed4799f5d91a23e734d90f3d. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/QZNJZ2367393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a63b927628b4ccdc99d7c225612c8b3de1b6455a0ba0928fd2106a0083fd76d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZW9L2393663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2733bd1516e67c4ce86d3cfe557956ca7f0ece790d3707a4fb3132fd2f83a103. 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/QZW9L2393664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d400599e3dbf2e014fe135ce2bbf435b2aeabd995a443eb09af5285fefdc45d. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/BXIV82225814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe00751833eb3fc2317fd53e4f8e41683ba6489e913370d1e00cf3bf0aea67a6. 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/BXIV82369399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28db31d4e588b3fce5e4e21a0ff7af471b6c4fc50f14fc4ff308b3bee2ec5601. 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/QZWDE2257246.