Question Mark
type: MusicGroup
genre: hard house
description: The question mark (also known as interrogation point, query, or eroteme in journalism) is a punctuation mark that indicates a question or interrogative clause or phrase in many languages. History Th
popularity: 32
followers: 4969
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7d03fcfe526a78280e47dc8cb9e1460c9a80b385d078231ebcab5507b540b723
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/184674a3-1a42-4e5e-af65-f25b4aeef4bd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/184674a3-1a42-4e5e-af65-f25b4aeef4bd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/184674a3-1a42-4e5e-af65-f25b4aeef4bd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7d03fcfe526a78280e47dc8cb9e1460c9a80b385d078231ebcab5507b540b723","name":"Question Mark","registered_at":"2026-06-12T15:01:42Z","symbol":"NIM0031979","token_address":"0xc6986dc69ab07de5f2a75766f6201d1601916f96","type":"artist","uuid":"184674a3-1a42-4e5e-af65-f25b4aeef4bd"}
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 0x7d03fcfe526a78280e47dc8cb9e1460c9a80b385d078231ebcab5507b540b723. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/184674a3-1a42-4e5e-af65-f25b4aeef4bd.json and https://artists.proofprofile.net/proofs/artist/184674a3-1a42-4e5e-af65-f25b4aeef4bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x7d03fcfe526a78280e47dc8cb9e1460c9a80b385d078231ebcab5507b540b723","name":"Question Mark","registered_at":"2026-06-12T15:01:42Z","symbol":"NIM0031979","token_address":"0xc6986dc69ab07de5f2a75766f6201d1601916f96","type":"artist","uuid":"184674a3-1a42-4e5e-af65-f25b4aeef4bd"}
album: Enigma
  type: MusicAlbum
  date published: 2000-05-05
album: Enigma
  type: MusicAlbum
  date published: 2000-05-05
album: The Birds
  type: MusicAlbum
  date published: 2002-01-14
  track: The Birds - Original Edit
    type: MusicRecording
    duration: PT3M16S
    duration ms: 196870
    explicit: false
    by artist: Question Mark
    in album: The Birds
      type: MusicAlbum
      date published: 2002-01-14
    genre: hard house
    isrc code: GBKQU1931015
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T13:54:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4d1e8a7d864cad806f247f957983f47d9b26a4918400d00176c5cd244c3335db
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958563
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958563
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU1931015
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T14:29:03Z
    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 0x4d1e8a7d864cad806f247f957983f47d9b26a4918400d00176c5cd244c3335db. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/GBKQU1931015.
      date published: 2026-07-18T14:29:03Z
    audio: The Birds - Original Edit
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.02
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.758
      additional property: Energy
        type: PropertyValue
        value: 0.994
      additional property: Speechiness
        type: PropertyValue
        value: 0.067
      additional property: Acousticness
        type: PropertyValue
        value: 0.009
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.004
      additional property: Liveness
        type: PropertyValue
        value: 0.102
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.368
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.277
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: The Birds (Mixed)
  type: MusicAlbum
  date published: 2002-01-14
album: Mentira
  type: MusicAlbum
  date published: 2005-01-01
album: Mentira
  type: MusicAlbum
  date published: 2005-01-01
  track: Mentira - Solar System vs. Elastica Remix
    type: MusicRecording
    duration: PT6M44S
    duration ms: 404573
    explicit: false
    by artist: Question Mark
    in album: Mentira
      type: MusicAlbum
      date published: 2005-01-01
    genre: hard house
    isrc code: ES5050500762
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T02:52:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x886c136f48afae4d15918300461dd5e9e98b32223121abc5d674742eaf27e138
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956476
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956476
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5050500762
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T09:04:44Z
    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 0x886c136f48afae4d15918300461dd5e9e98b32223121abc5d674742eaf27e138. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ES5050500762.
      date published: 2026-07-03T09:04:44Z
    audio: Mentira - Solar System vs. Elastica Remix
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 136.996
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.719
      additional property: Energy
      additional property: Speechiness
      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: Famous Tunes
album: A whiter shade of pale
album: A Whiter Shade Of Pale
album: Warm Evil
album: Losing Choices
album: The Birds (David Rust Remix - D1)
album: The Birds (David Rust Remix) - D1
track: We'll Meet Again

We'll Meet Again
type: MusicRecording
duration: PT1M47S
duration ms: 107860
explicit: false
by artist: Question Mark
in album: Gravity Falls (Original Soundtrack)
  type: MusicAlbum
  date published: 2024-01-12
isrc code: USWD12097734
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T10:30:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaaf986a1ad6506678328c7430e5966297f5daa5e1cf11d6b20529066d8f11290
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12097734
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953528
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T15:41:10+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf986a1ad6506678328c7430e5966297f5daa5e1cf11d6b20529066d8f11290. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USWD12097734.
  date published: 2026-06-13T17:25:41Z
audio: We'll Meet Again
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 50
  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
  additional property: Energy
    type: PropertyValue
    value: 0
  additional property: Speechiness
    type: PropertyValue
    value: 0
  additional property: Acousticness
    type: PropertyValue
    value: 0
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0
  additional property: Loudness (dB)
    type: PropertyValue
    value: -4.615
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Energy
type: PropertyValue
value: 0.934

Speechiness
type: PropertyValue
value: 0.053

Acousticness
type: PropertyValue
value: 0

Instrumentalness
type: PropertyValue
value: 0.813

Liveness
type: PropertyValue
value: 0.764

Valence (Positivity)
type: PropertyValue
value: 0.285

Loudness (dB)
type: PropertyValue
value: -9.253

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Minor

Famous Tunes
type: MusicAlbum
date published: 2008-01-01

The Birds
type: MusicAlbum
date published: 2009-01-05

A whiter shade of pale
type: MusicAlbum
date published: 2009-11-01

A Whiter Shade Of Pale
type: MusicAlbum
date published: 2009-11-01

Warm Evil
type: MusicAlbum
date published: 2014-04-22

Losing Choices
type: MusicAlbum
date published: 2020-02-04

The Birds (David Rust Remix - D1)
type: MusicAlbum
date published: 2021-10-08

The Birds (David Rust Remix) - D1
type: MusicAlbum
date published: 2021-10-08