Velvetbound
type: MusicGroup
popularity: 6
followers: 802
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x68b3833d516c7ff838d228e80ef257bc0dfb8b37d93601d6c16fc814f7972fb3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c09640f6-dc91-4b0e-9596-5491706c15aa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c09640f6-dc91-4b0e-9596-5491706c15aa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c09640f6-dc91-4b0e-9596-5491706c15aa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
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 0x68b3833d516c7ff838d228e80ef257bc0dfb8b37d93601d6c16fc814f7972fb3. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c09640f6-dc91-4b0e-9596-5491706c15aa.json and https://artists.proofprofile.net/proofs/artist/c09640f6-dc91-4b0e-9596-5491706c15aa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
album: Pawn
  type: MusicAlbum
  date published: 2024-12-25
album: 歩
  type: MusicAlbum
  date published: 2024-12-25
album: I Don't Know
  type: MusicAlbum
  date published: 2025-01-29
album: アイドンノウ
  type: MusicAlbum
  date published: 2025-01-29
album: Fujichaku
  type: MusicAlbum
  date published: 2025-02-26
album: 不時着
  type: MusicAlbum
  date published: 2025-02-26
  track: 不時着
    type: MusicRecording
    duration: PT2M33S
    duration ms: 153027
    explicit: false
    by artist: Velvetbound
    in album: 不時着
      type: MusicAlbum
      date published: 2025-02-26
    isrc code: TCJPD2588263
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T08:42:39+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x84330f89c6face1a00c86397395c7327f0899d9fc2530e070051ea746bc4dce8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958853
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958853
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPD2588263
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T09:11:53Z
    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 0x84330f89c6face1a00c86397395c7327f0899d9fc2530e070051ea746bc4dce8. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/TCJPD2588263.
      date published: 2026-07-20T09:11:53Z
    audio: 不時着
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 149.943
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.708
      additional property: Energy
        type: PropertyValue
        value: 0.669
      additional property: Speechiness
        type: PropertyValue
        value: 0.08
      additional property: Acousticness
        type: PropertyValue
        value: 0.026
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.15
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.856
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.71
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: スタンドバイミー
  type: MusicAlbum
  date published: 2025-03-31
album: Stand By Me
  type: MusicAlbum
  date published: 2025-03-31
album: 月と北極星
  type: MusicAlbum
  date published: 2025-04-16
album: The Moon and the North Star
  type: MusicAlbum
  date published: 2025-04-16
album: エピローグ
  type: MusicAlbum
  date published: 2025-05-21
  track: エピローグ
    type: MusicRecording
    duration: PT3M58S
    duration ms: 238963
    explicit: false
    by artist: Velvetbound
    in album: エピローグ
      type: MusicAlbum
      date published: 2025-05-21
    isrc code: TCJPH2514948
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T19:24:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9e2b89aaafb101ced8c5fdb70dd3ff527ac3b12109e1488fd330462496137f0b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958771
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958771
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPH2514948
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T19:27:18Z
    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 0x9e2b89aaafb101ced8c5fdb70dd3ff527ac3b12109e1488fd330462496137f0b. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/TCJPH2514948.
      date published: 2026-07-19T19:27:18Z
    audio: エピローグ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 176.127
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
      additional property: Danceability
      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: Epilogue
album: Stop
album: Pony
album: ポニー
album: まどろみに咲く
album: Blooming in Slumber
album: Fushidara
album: ふしだら
album: インサイド
album: Inside

Time Signature
type: PropertyValue
value: 3

Danceability
type: PropertyValue
value: 0.473

Energy
type: PropertyValue
value: 0.628

Speechiness
type: PropertyValue
value: 0.035

Acousticness
type: PropertyValue
value: 0.099

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.139

Valence (Positivity)
type: PropertyValue
value: 0.57

Loudness (dB)
type: PropertyValue
value: -7.686

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

Epilogue
type: MusicAlbum
date published: 2025-05-21

Stop
type: MusicAlbum
date published: 2025-06-18

Stop
type: MusicAlbum
date published: 2025-06-18

Pony
type: MusicAlbum
date published: 2025-07-23

ポニー
type: MusicAlbum
date published: 2025-07-23

まどろみに咲く
type: MusicAlbum
date published: 2025-08-27

Blooming in Slumber
type: MusicAlbum
date published: 2025-08-27

Fushidara
type: MusicAlbum
date published: 2025-09-24

ふしだら
type: MusicAlbum
date published: 2025-09-24

インサイド
type: MusicAlbum
date published: 2025-10-22

Inside
type: MusicAlbum
date published: 2025-10-22