Ghosts That We Knew
type: MusicGroup
genre: metalcore
popularity: 9
followers: 2263
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3aca37935b087a6f2dae1159c65243a1e0d3f7235efcc58baf72db002a620a0a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ab29e458-b306-4679-b7b6-bd559e9e226a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ab29e458-b306-4679-b7b6-bd559e9e226a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ab29e458-b306-4679-b7b6-bd559e9e226a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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 0x3aca37935b087a6f2dae1159c65243a1e0d3f7235efcc58baf72db002a620a0a. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab29e458-b306-4679-b7b6-bd559e9e226a.json and https://artists.proofprofile.net/proofs/artist/ab29e458-b306-4679-b7b6-bd559e9e226a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0x3aca37935b087a6f2dae1159c65243a1e0d3f7235efcc58baf72db002a620a0a","name":"Ghosts That We Knew","registered_at":"2026-06-20T09:37:23Z","symbol":"NIM1581952","token_address":"0x62f80a566ed7a8101300ecae5ed2231feaaf7d24","type":"artist","uuid":"ab29e458-b306-4679-b7b6-bd559e9e226a"}
album: Set Me Free
  type: MusicAlbum
  date published: 2023-05-19
  track: Set Me Free
    type: MusicRecording
    duration: PT4M23S
    duration ms: 263200
    explicit: false
    by artist: Ghosts That We Knew
    in album: Set Me Free
      type: MusicAlbum
      date published: 2023-05-19
    genre: metalcore
    isrc code: TCAGZ2364727
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
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      type: PropertyValue
      value: 2026-07-14T22:06:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
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    additional property: OTSHash
    additional property: OTSBitcoinBlock
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      value: 958074
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958074
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGZ2364727
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-14T22:45:25Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367c924ee1d87531b4fb4e935fedb42c7a9238665ef3d21bb5ef3876af7aff86. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/TCAGZ2364727.
      date published: 2026-07-14T22:45:25Z
    audio: Set Me Free
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 74.961
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.351
      additional property: Energy
        type: PropertyValue
        value: 0.858
      additional property: Speechiness
        type: PropertyValue
        value: 0.062
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.038
      additional property: Liveness
        type: PropertyValue
        value: 0.152
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.281
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.51
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Last Time
  type: MusicAlbum
  date published: 2023-07-14
album: Salvation
  type: MusicAlbum
  date published: 2023-08-31
  track: Salvation
    type: MusicRecording
    duration: PT3M35S
    duration ms: 215172
    explicit: false
    by artist: Ghosts That We Knew
    in album: Salvation
      type: MusicAlbum
      date published: 2023-08-31
    genre: metalcore
    isrc code: TCAHI2315761
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
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      type: PropertyValue
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    additional property: OTSBitcoinBlock
      type: PropertyValue
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956656
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAHI2315761
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T14:03:39Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6c51dddfe006c86861dcedaec50b5d51ec518daf13f790406e43ab07cc19b9. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCAHI2315761.
      date published: 2026-07-04T14:03:39Z
    audio: Salvation
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 144.901
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.422
      additional property: Energy
        type: PropertyValue
        value: 0.944
      additional property: Speechiness
        type: PropertyValue
        value: 0.124
      additional property: Acousticness
        type: PropertyValue
        value: 0.005
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.702
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: What We Are in the Dark
album: Stay
album: Intertwine

Liveness
type: PropertyValue
value: 0.147

Valence (Positivity)
type: PropertyValue
value: 0.212

Loudness (dB)
type: PropertyValue
value: -5.484

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Minor

What We Are in the Dark
type: MusicAlbum
date published: 2023-10-06

Stay
type: MusicAlbum
date published: 2025-05-16

Intertwine
type: MusicAlbum
date published: 2025-11-07