Arc of CHESS
type: MusicGroup
genre: j-rock
genre: visual kei
popularity: 9
followers: 984
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x83b18dbe5246014c3271ef32406ff046bce92b828d24943a948fad9400752fbe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/58babf6a-11c4-4cc7-8ef1-3b9540e9fe6e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/58babf6a-11c4-4cc7-8ef1-3b9540e9fe6e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/58babf6a-11c4-4cc7-8ef1-3b9540e9fe6e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x83b18dbe5246014c3271ef32406ff046bce92b828d24943a948fad9400752fbe","name":"Arc of CHESS","registered_at":"2026-06-16T20:27:07Z","symbol":"NIM1166279","token_address":"0x325a0d9b03c66c99e02dfbcddff1bc79328e32ae","type":"artist","uuid":"58babf6a-11c4-4cc7-8ef1-3b9540e9fe6e"}
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 0x83b18dbe5246014c3271ef32406ff046bce92b828d24943a948fad9400752fbe. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/58babf6a-11c4-4cc7-8ef1-3b9540e9fe6e.json and https://artists.proofprofile.net/proofs/artist/58babf6a-11c4-4cc7-8ef1-3b9540e9fe6e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x83b18dbe5246014c3271ef32406ff046bce92b828d24943a948fad9400752fbe","name":"Arc of CHESS","registered_at":"2026-06-16T20:27:07Z","symbol":"NIM1166279","token_address":"0x325a0d9b03c66c99e02dfbcddff1bc79328e32ae","type":"artist","uuid":"58babf6a-11c4-4cc7-8ef1-3b9540e9fe6e"}
album: Sechs
  type: MusicAlbum
  date published: 2022-07-22
  track: in just pain my Dear
    type: MusicRecording
    duration: PT4M25S
    duration ms: 265200
    explicit: false
    by artist: Arc of CHESS
    in album: Sechs
      type: MusicAlbum
      date published: 2022-07-22
    genre: j-rock
    genre: visual kei
    isrc code: TCJPS2255651
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T06:34:13+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8fdfce3b9283d8f32c22c72d0629f46ba515f48ceccbaa90410d507104f76ee3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2255651
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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 0x8fdfce3b9283d8f32c22c72d0629f46ba515f48ceccbaa90410d507104f76ee3. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCJPS2255651.
      date published: 2026-07-04T11:19:20Z
    audio: in just pain my Dear
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.025
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.412
      additional property: Energy
        type: PropertyValue
        value: 0.74
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.244
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.375
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.535
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Chaos
  type: MusicAlbum
  date published: 2022-07-22
album: 絶狂集
  type: MusicAlbum
  date published: 2022-07-22
album: 華悪集
  type: MusicAlbum
  date published: 2022-07-22
album: aishiteru (English ver.)
  type: MusicAlbum
  date published: 2024-05-13
album: I love you (English Ver.)
  type: MusicAlbum
  date published: 2024-05-25
album: lovesong #02 "kisaragi"
  type: MusicAlbum
  date published: 2025-03-12
album: lovesong #01 "mutsuki"
  type: MusicAlbum
  date published: 2025-03-12
album: lovesong #03 "yayoi"
  type: MusicAlbum
  date published: 2025-03-17
album: 恋奏曲第八章 ～葉月～
  type: MusicAlbum
  date published: 2025-03-17
album: lovesong #09 "gennotsuki"
  type: MusicAlbum
  date published: 2025-03-17
album: lovesong #04 "uduki"
  type: MusicAlbum
  date published: 2025-03-17
album: lovesong #05 "satsuki"
  type: MusicAlbum
  date published: 2025-03-17
album: lovesong #10 "kannaduki"
  type: MusicAlbum
  date published: 2025-03-17
album: lovesong #06 "minaduki"
  type: MusicAlbum
  date published: 2025-03-17
album: lovesong #08 "haduli"
  type: MusicAlbum
  date published: 2025-03-17
album: lovesong #12 "kagirinoduki"
  type: MusicAlbum
  date published: 2025-03-17
album: lovesong #07 "randuki"
  type: MusicAlbum
  date published: 2025-03-17
album: lovesong #13 "meguriduki"
  type: MusicAlbum
  date published: 2025-03-17
album: lovesong #11 "shimotsuki"
  type: MusicAlbum
  date published: 2025-03-17
album: Despair
  type: MusicAlbum
  date published: 2025-04-01
album: Izayoi
  type: MusicAlbum
  date published: 2025-04-01
album: Despair
  type: MusicAlbum
  date published: 2025-04-01
album: Requiem of B (English ver.)
  type: MusicAlbum
  date published: 2025-04-01
album: 僕はココニイルヨ
  type: MusicAlbum
  date published: 2025-04-18
album: I'm here.
album: Pure
album: From One's Heart
album: I miss you.
album: 螺旋
album: rasen
album: kan no tsuki
album: Cross
album: aez
album: From One's Heart (English Ver.)

I'm here.
type: MusicAlbum
date published: 2025-04-18

Pure
type: MusicAlbum
date published: 2025-04-18

From One's Heart
type: MusicAlbum
date published: 2025-04-18

I miss you.
type: MusicAlbum
date published: 2025-04-18

From One's Heart
type: MusicAlbum
date published: 2025-04-18

螺旋
type: MusicAlbum
date published: 2025-06-04

rasen
type: MusicAlbum
date published: 2025-06-04

kan no tsuki
type: MusicAlbum
date published: 2025-06-04

Cross
type: MusicAlbum
date published: 2025-06-12

Cross
type: MusicAlbum
date published: 2025-06-12

aez
type: MusicAlbum
date published: 2025-06-26

aez
type: MusicAlbum
date published: 2025-06-26

From One's Heart (English Ver.)
type: MusicAlbum
date published: 2025-09-24