Michael Anthony Mangini (born April 18, 1963) is an American musician, best known for his tenure with the progressive metal band Dream Theater, with whom he performed from 2010 to 2023. He has also pl
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 0xc9a52504ccd9f5bcc31d3f06044ad3c600fc0ca6afe528f9f1c539a8288e7097. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23661ecc-4406-4711-98dd-2834ba1cbeb4.json and https://artists.proofprofile.net/proofs/artist/23661ecc-4406-4711-98dd-2834ba1cbeb4.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 0x26e3d3688a44035dcbdbdbe42ea4523a5f8a2f972fa4ddc7dc720acb429b9c1b. 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/US78S0511201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2413ed33da97e636ffad566fad563d1a331c8129948ec88d63df1ecf9196df. 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/US78S0511206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cbf95a4fab6428480dc39fdd4069651b00d9277f9e9cb33eb616a61f97fe73e. 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/US78S0511210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe434e95577d77db76a1366c5d987ff71a5a91d8d4675d5b07ddcfe133992b2a2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US78S0511203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7251b69a3c48d0e11ccc8c344c6cd96d1efb28e997f9904a5c33f58d7f7b25d. 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/US78S0511205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11904d0b18cca2de19b5da09313d486cd36af58a6623f8979dc412b3bf4711d5. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US78S0505604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a9490d4bd8bd76d088f944128619356f89e1c7648cf68ce74485718397640d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/US78S0511208.
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 0xee400e8cbb0f6581ac0d05fdb3eb8695f661178b32ed0a7a65237f60202662b8. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/US78S0511209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab3fa4fc61d591f906d2a66513d60632ef9f6d2184f15140ff9fabaeeea1910. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/US78S0511202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42999cba53eb6d243c99cfed40c80844ea08afaee09d68642007e64d0b24fb8. 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/US78S0511204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315631ef1e1e479c6562cedf72c04b20ee6eb5de080f42ac66718982725d95c8. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/US78S0511207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff1c27db59ce19b69342a1f69056773074993cf42ef2ba3cf3f927d97843247. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/US78S0511211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d9ef15da514211b4d7082e9ab77fb796e44012035602314940a6e5844efb6c. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/US78S0510607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01fa95475cc53b5123674d7cff7fdc44704c9f20e78219002031e1adff1c7e98. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/US78S0510609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4516a78990cbd0b2046fc1d6bc534099491aa631945a30118b87bc7ba6a578a. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/US78S0505601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b6871fb597d86856ff8a6c498f2654e53feb1e2f6834848571768b5f84ff86b. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/US78S0505602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b865c680ea1a21d58c27ff1a751d93494d8ebe1114dea2083d06dee845d8eb. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US78S0505603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7dd09c89d5048ca5a91252e07cce4198c323a0dbafab195dcadc94481a21048. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US78S0505605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8117a2123eef81baed5d55355184e622e13ac522325334cdc5a7ab839e1b590. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/US78S0505606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea29005993dcf80b7610584edab46e260937c3d1bfb07e6c54d8b4653c5d1bf0. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/US78S0505607.