MK or mk may refer to: In arts, entertainment and media Fictional characters Moon Knight, a Marvel Comics superhero M.K., an Into the Badlands (TV series) character Mary Katherine "M.K." Bomba,
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 0xe07a416d0e7b22d2008d71b5619faf0d5dd5313577eb2947a1d52f77d0064e4f. 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/cc7191cb-2600-4f48-9f6c-4f5910bb0205.json and https://artists.proofprofile.net/proofs/artist/cc7191cb-2600-4f48-9f6c-4f5910bb0205.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 0xf8d7fb7765f69510f2d877d48eb5fd05971e61b45b43843d05338eece3e9b3af. 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/TWCC32214750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3d33c1f993eb8fcfd5f75a4ed559c773d80c4fd0338bf542ab3756749ee84f. 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/TWCC32214751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1d294941b8b7969c9b1daabe623622f9b14e8ad9cf830f0f402dc8b76a9c44. 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/TWCC32214752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7aaafcab7a002c4275418e52e6180e25a245a18bc51b3b835ece84f922fcb57. 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/TWCC32214753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c7c7d6e886e51c6b1ca1eede6a40a04ff065528401144b9daecbc99d65b84d. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/TWCC32214754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ccaa10b96480bc4fc5d58038c8299219ef7286c796f52fa50b7d2b5f1b1ad6. 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/TWCC32214756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f36a21b8e009631d0b0884c646b70e6327430bea1ab1def744a67e5180dd62. 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/TWCC32214757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f5dc26c419f1a76a6ea0e71cfcdb33b3db4f8ed5a32a6d082b8ab9d714b2ce. 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/TWCC32214758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d808a3990d9d20cde799b6a2bf380b782da942f4b1b5f2dacc897ca6ec67669. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TWCC32214759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4259ffa7c955885c654a1aff17de63d7eaf93053ec4db3b382429b7a7c9bd2. 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/QZMHL2499179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167a1f5c848d1ce95f33ae616f37ee6d25da14302e3f042b3ac96b34a3957de9. 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/QZMHK2483803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8d16cbb719a6f6dc1ab54939d40c68b1c651a9a0476488c80bc42ae2ea97ea. 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/QZDA72555755.