X50
type: MusicGroup
description: X50 or X-50 may refer to: Electronics Canon EOS Kiss X50, a digital single-lens reflex camera Dell Axim X50, a personal digital assistant Korg X50, a music workstation synthesizer Minolta DiMAGE
popularity: 11
followers: 1822
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaeb6ac5d0241173a449629265536ef90870332cdd78f493331743fccabee1368
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953807
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953807
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f3cb1886-ec07-4aaa-81b9-169a54d309fb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f3cb1886-ec07-4aaa-81b9-169a54d309fb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f3cb1886-ec07-4aaa-81b9-169a54d309fb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T16:39:18Z
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 0xaeb6ac5d0241173a449629265536ef90870332cdd78f493331743fccabee1368. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f3cb1886-ec07-4aaa-81b9-169a54d309fb.json and https://artists.proofprofile.net/proofs/artist/f3cb1886-ec07-4aaa-81b9-169a54d309fb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T16:39:18Z
album: Wonderland
  type: MusicAlbum
  date published: 2017-05-13
album: Adventure
  type: MusicAlbum
  date published: 2017-05-16
album: Goats
  type: MusicAlbum
  date published: 2017-05-25
album: Life
  type: MusicAlbum
  date published: 2017-06-19
album: Summer Dawn
  type: MusicAlbum
  date published: 2017-07-07
album: Utopia
  type: MusicAlbum
  date published: 2017-08-12
album: Afterlife
  type: MusicAlbum
  date published: 2017-09-21
album: Supermoon
  type: MusicAlbum
  date published: 2017-10-20
album: Aurora
  type: MusicAlbum
  date published: 2017-11-15
album: Dreams
  type: MusicAlbum
  date published: 2018-01-23
  track: Dreams
    type: MusicRecording
    duration: PT3M23S
    duration ms: 203441
    explicit: false
    by artist: X50
    in album: Dreams
      type: MusicAlbum
      date published: 2018-01-23
    isrc code: QZAPG1887764
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T19:50:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd1620d1a0f9375b259ee99dc3079a878d3017a6332e7649ea64dc6731a0f795d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957750
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957750
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAPG1887764
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T20:39:38Z
    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 0xd1620d1a0f9375b259ee99dc3079a878d3017a6332e7649ea64dc6731a0f795d. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZAPG1887764.
      date published: 2026-07-12T20:39:38Z
    audio: Dreams
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 195.997
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.502
      additional property: Energy
        type: PropertyValue
        value: 0.664
      additional property: Speechiness
        type: PropertyValue
        value: 0.21
      additional property: Acousticness
        type: PropertyValue
        value: 0.169
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.737
      additional property: Liveness
        type: PropertyValue
        value: 0.115
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.502
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.733
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Journey
  type: MusicAlbum
  date published: 2018-02-11
album: Home
  type: MusicAlbum
  date published: 2018-04-08
album: Boop
  type: MusicAlbum
  date published: 2018-05-04
album: Penguin
  type: MusicAlbum
  date published: 2018-05-30
  track: Penguin
    type: MusicRecording
    duration: PT3M27S
    duration ms: 207690
    explicit: false
    by artist: X50
    in album: Penguin
      type: MusicAlbum
      date published: 2018-05-30
    isrc code: QZDA41808608
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T23:57:53+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd6f016b082203b01f7797ca45ad083faf9b636af4a88fe123b5ba4920db9c1b6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958224
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958224
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA41808608
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T02:28:43Z
    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 0xd6f016b082203b01f7797ca45ad083faf9b636af4a88fe123b5ba4920db9c1b6. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZDA41808608.
      date published: 2026-07-16T02:28:43Z
    audio: Penguin
album: Be With U
album: Moving On
album: Miss U

Penguin
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 118.003
additional property: Musical Key
  type: PropertyValue
  value: 1
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.694
additional property: Energy
  type: PropertyValue
  value: 0.903
additional property: Speechiness
  type: PropertyValue
  value: 0.041
additional property: Acousticness
  type: PropertyValue
  value: 0.065
additional property: Instrumentalness
  type: PropertyValue
  value: 0.886
additional property: Liveness
  type: PropertyValue
  value: 0.087
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.472
additional property: Loudness (dB)
  type: PropertyValue
  value: -6.397
additional property: Key Name
  type: PropertyValue
  value: C#
additional property: Mode Name
  type: PropertyValue
  value: Minor

Be With U
type: MusicAlbum
date published: 2018-11-02

Moving On
type: MusicAlbum
date published: 2019-06-26

Miss U
type: MusicAlbum
date published: 2020-04-30
track: Miss U
  type: MusicRecording
  duration: PT2M45S
  duration ms: 165471
  explicit: false
  by artist: X50
  in album: Miss U
    type: MusicAlbum
    date published: 2020-04-30
  isrc code: QZES52083084
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T16:23:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x48c077a7b1c58a6fa0a8e07f79096d400b5556d15d2ca9cae8ab7ade0c30a5b3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956725
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956725
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52083084
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:12:41Z
  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 0x48c077a7b1c58a6fa0a8e07f79096d400b5556d15d2ca9cae8ab7ade0c30a5b3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZES52083084.
    date published: 2026-07-05T01:12:41Z
  audio: Miss U
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 97.02
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.578
    additional property: Energy
      type: PropertyValue
      value: 0.686
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.046
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.973
    additional property: Liveness
      type: PropertyValue
      value: 0.1
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.653
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.611
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major