kmmk
type: MusicGroup
description: KMMK may refer to: the ICAO code for Meriden Markham Municipal Airport, in Meriden, Connecticut, United States KMMK (FM), a radio station (88.7 FM) licensed to serve Coggon, Iowa, United States KM
popularity: 2
followers: 66
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdb65522e2a9181acf9871a75b25a04232ba057a36e7577781edc06e6fb67bcb1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953968
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953968
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/28b8e976-cd29-4e82-9117-ffa4464791a9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/28b8e976-cd29-4e82-9117-ffa4464791a9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/28b8e976-cd29-4e82-9117-ffa4464791a9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:01:49Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb65522e2a9181acf9871a75b25a04232ba057a36e7577781edc06e6fb67bcb1. Chain 2 (Bitcoin): anchored in block 953968 (2026-06-16T16:01:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/28b8e976-cd29-4e82-9117-ffa4464791a9.json and https://artists.proofprofile.net/proofs/artist/28b8e976-cd29-4e82-9117-ffa4464791a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:01:49Z
album: Escombros (Demo)
  type: MusicAlbum
  date published: 2019-11-02
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  type: MusicAlbum
  date published: 2020-01-24
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  type: MusicAlbum
  date published: 2020-04-24
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  type: MusicAlbum
  date published: 2020-08-28
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  type: MusicAlbum
  date published: 2021-04-08
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  type: MusicAlbum
  date published: 2021-08-27
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  type: MusicAlbum
  date published: 2024-11-29
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  type: MusicAlbum
  date published: 2024-12-24
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  type: MusicAlbum
  date published: 2025-01-09
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  type: MusicAlbum
  date published: 2025-02-22
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  type: MusicAlbum
  date published: 2025-07-11