Michl is a surname and male given name. Surname Notable people with this surname include: Andreas Michl (born 1980), Austrian footballer František Michl (1901–1977), Czech graphic artist Günther M
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 0x168ef3c0ccb31f4fb935b794367ffc97e9c447bbd50433d930d27eb5816855d9. 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/08ca1da0-583b-4bef-a60b-a13c0cc56d26.json and https://artists.proofprofile.net/proofs/artist/08ca1da0-583b-4bef-a60b-a13c0cc56d26.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 0xfbc5c9bfb0d701feda35ce1d4386f199bb5aa7d0e020bbfd45e18e3741c3e8c1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZDA72199800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ab2a36e4ba26d541ee7851749454e83056816ed12c6bbcc956713202956deb. 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/QZFZ22287957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f24df25c4e655e78a5bdf1dc08224233b608e7c8cc08f26fdc34e48fa1bc6b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZHNB2244714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c8c8e1cb70d09e45293caff2394efa5f3cc1386d219f82498de3980dbabfe4. 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/QZK6M2283660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc639f722f2d52473ecf912f1dc60df432381ccb397fc0b6b12105cd189adf8a9. 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/QZDA52386680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c8c8e1cb70d09e45293caff2394efa5f3cc1386d219f82498de3980dbabfe4. 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/QZK6M2283660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc5c9bfb0d701feda35ce1d4386f199bb5aa7d0e020bbfd45e18e3741c3e8c1. 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/QZDA72199800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3806213fcbfb4bdc2d442f044d0cddc66ba8833108b930e33b5cf534b3f83e9. 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/QZFYZ2112420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f24df25c4e655e78a5bdf1dc08224233b608e7c8cc08f26fdc34e48fa1bc6b. 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/QZHNB2244714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d9d19cea4414b18cffbc34b5cb75a8bf88a947a3771a3e04cd116c8fd77630. 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/QZDA52386681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6b18490d36ce33e84d1256cec7e6fa17f9153a8f103aaedadcc1dff0b70250. 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/QZDA52386682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43c11495c2b7100cd48ce43ef5f2ca03079c5d3f059164857cafeb70fc0cae2. 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/QZES62184768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717115015ccbbce78f64944c4f61433ffb966199da7910a3a596abe2520cf95d. 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/QZDA52386683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ab2a36e4ba26d541ee7851749454e83056816ed12c6bbcc956713202956deb. 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/QZFZ22287957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734fa8aa418947c34c803ebc704211dfb388a269266ec927d33581173a810fb1. 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/QZES62211811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c69bf97f903e579955a33423ec5b281069538f8be41271ffd6583653046461. 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/QZDA52386684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa217ba781653ee0a198315b7d61cf1adbf6d497871554e72c7314a824878fd2b. 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/QZTB82425102.