Checkmate
type: MusicGroup
description: right|thumb|upright=1.35|Black is checkmated and loses the game. Checkmate (often shortened to mate) is any game position in chess and other chess-like games in which a player's king is in check (thr
popularity: 8
followers: 242
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x877b16e5db83c0ec85931661745eda2b7249b5aa61cd78681d41a53d28f1debd
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fa9c659b-0ff0-4b30-b427-5a05ae33637e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fa9c659b-0ff0-4b30-b427-5a05ae33637e.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fa9c659b-0ff0-4b30-b427-5a05ae33637e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877b16e5db83c0ec85931661745eda2b7249b5aa61cd78681d41a53d28f1debd. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa9c659b-0ff0-4b30-b427-5a05ae33637e.json and https://artists.proofprofile.net/proofs/artist/fa9c659b-0ff0-4b30-b427-5a05ae33637e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
album: Welcome To The Game
  type: MusicAlbum
  date published: 2000-01-01
album: Another World
  type: MusicAlbum
  date published: 2000-09-06
  track: Another World - Hardmix
    type: MusicRecording
    duration: PT3M25S
    duration ms: 205120
    explicit: false
    by artist: Checkmate
    in album: Another World
      type: MusicAlbum
      date published: 2000-09-06
    isrc code: BEK011001898
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    additional property: CopyrightStatus
      type: PropertyValue
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      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEK011001898
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T20:12:32Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94449f6f42981dd3b4b7ce7fe8bfe976e58f1ca62ac3c4de36b406d997de46cc. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/BEK011001898.
      date published: 2026-07-16T20:12:32Z
    audio: Another World - Hardmix
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.134
      additional property: Musical Key
        type: PropertyValue
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      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.754
      additional property: Energy
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      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.421
      additional property: Liveness
        type: PropertyValue
        value: 0.044
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.226
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.067
      additional property: Key Name
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      additional property: Mode Name
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album: Echoes
  type: MusicAlbum
  date published: 2007-01-01
album: City of Heroes
  type: MusicAlbum
  date published: 2009
album: Don't Doubt It
  type: MusicAlbum
  date published: 2009-05-19
album: Till She Say Ok - Maxi Single
  type: MusicAlbum
  date published: 2010-04-16
album: Get Your Tippy Toe On
  type: MusicAlbum
  date published: 2010-08-13
album: Mi Citi & Mii 3 (M.C.M 3)
  type: MusicAlbum
  date published: 2012-05-03
album: ATX Pioneer (feat. Above All Money Gang) [A Hero's Son]
  type: MusicAlbum
  date published: 2013-01-25
album: Life and Times of Davis Jr
  type: MusicAlbum
  date published: 2013-06-13
album: Separate
  type: MusicAlbum
  date published: 2013-10-24
album: I Like It Hot
  type: MusicAlbum
  date published: 2014-02-03
  track: Queen of Chinatown - Midnight Express Remix
    type: MusicRecording
    duration: PT6M37S
    duration ms: 397781
    explicit: false
    by artist: Checkmate
    in album: I Like It Hot
      type: MusicAlbum
      date published: 2014-02-03
    isrc code: ITJ871400073
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    additional property: CopyrightStatus
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    additional property: OTSVerificationAPI
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      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITJ871400073
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T02:21:25Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 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
    subject of: OpenTimestamps Proof of Existence
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      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76bfc2a9565b933a9a79cd2acd00b4ba33ab0c009513e2263efd832d955fa98b. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/ITJ871400073.
      date published: 2026-07-19T02:21:25Z
    audio: Queen of Chinatown - Midnight Express Remix
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Musical Key
      additional property: Mode (Major/Minor)
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
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      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Days Gone By
album: The Endless Fall
album: The Stoop Kid EP
album: You Spin Me Round (Like a Record)
album: Lady
album: Winter
album: House Party
album: Occhi di giada
album: Wylin' Out
album: A.B.M
album: Dip Twerk
album: Love Is Gone Away
album: Share My Love
album: I DO

Musical Key
type: PropertyValue
value: 11

Mode (Major/Minor)
type: PropertyValue
value: 0

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.756

Energy
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value: 0.719

Speechiness
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value: 0.059

Acousticness
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value: 0.001

Instrumentalness
type: PropertyValue
value: 0.91

Liveness
type: PropertyValue
value: 0.219

Valence (Positivity)
type: PropertyValue
value: 0.751

Loudness (dB)
type: PropertyValue
value: -9.075

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Minor

Days Gone By
type: MusicAlbum
date published: 2014-02-26

The Endless Fall
type: MusicAlbum
date published: 2016-06-01

The Stoop Kid EP
type: MusicAlbum
date published: 2016-08-09

You Spin Me Round (Like a Record)
type: MusicAlbum
date published: 2016-12-02

Lady
type: MusicAlbum
date published: 2017-10-27

Winter
type: MusicAlbum
date published: 2017-10-31

House Party
type: MusicAlbum
date published: 2018-03-21

Occhi di giada
type: MusicAlbum
date published: 2018-09-08

Wylin' Out
type: MusicAlbum
date published: 2019-05-24

A.B.M
type: MusicAlbum
date published: 2019-05-24

Dip Twerk
type: MusicAlbum
date published: 2019-05-24

Love Is Gone Away
type: MusicAlbum
date published: 2020-12-16

Share My Love
type: MusicAlbum
date published: 2020-12-16

I DO
type: MusicAlbum
date published: 2022-06-22