Defspiral
type: MusicGroup
genre: j-rock
genre: visual kei
description: Defspiral (stylized as defspiral, and briefly existing under the name Wilma-Sidr) is a Japanese visual kei alternative metal band composed of most of the former members of the Underneath. When the Und
popularity: 11
followers: 2602
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe77a03a3bdc937c25c0b5cb6efb09a248d2d7345038ef4e4aed938fcfded112a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953697
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953697
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5c9c50ac-c879-421d-b13f-174d398df9d2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5c9c50ac-c879-421d-b13f-174d398df9d2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5c9c50ac-c879-421d-b13f-174d398df9d2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:49:28Z
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 0xe77a03a3bdc937c25c0b5cb6efb09a248d2d7345038ef4e4aed938fcfded112a. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5c9c50ac-c879-421d-b13f-174d398df9d2.json and https://artists.proofprofile.net/proofs/artist/5c9c50ac-c879-421d-b13f-174d398df9d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:49:28Z
album: BRILLIANT WORLD
  type: MusicAlbum
  date published: 2015-10-21
album: BRILLIANT WORLD
  type: MusicAlbum
  date published: 2015-10-21
album: AFTERGLOW
  type: MusicAlbum
  date published: 2017-02-22
album: AFTERGLOW
  type: MusicAlbum
  date published: 2017-02-22
album: PHANTOM
  type: MusicAlbum
  date published: 2017-06-07
album: PHANTOM
  type: MusicAlbum
  date published: 2017-06-07
album: TO THE GALAXY
  type: MusicAlbum
  date published: 2017-11-29
  track: PHANTOM
    type: MusicRecording
    duration: PT3M42S
    duration ms: 222800
    explicit: false
    by artist: Defspiral
    in album: TO THE GALAXY
      type: MusicAlbum
      date published: 2017-11-29
    genre: j-rock
    genre: visual kei
    isrc code: TCJPG1735730
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T07:01:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf49ccc5ef42d04d8644d56c7e6ffe3c211e427509a1074e8b254c032e77477f4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959107
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959107
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPG1735730
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T07:19:23Z
    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 0xf49ccc5ef42d04d8644d56c7e6ffe3c211e427509a1074e8b254c032e77477f4. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/TCJPG1735730.
      date published: 2026-07-22T07:19:23Z
    audio: PHANTOM
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.67
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.193
      additional property: Energy
        type: PropertyValue
        value: 0.916
      additional property: Speechiness
        type: PropertyValue
        value: 0.069
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.154
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.544
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.135
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: TO THE GALAXY
  type: MusicAlbum
  date published: 2017-11-29
album: recycled (Remix)
  type: MusicAlbum
  date published: 2019-07-25
album: recycled (Remix)
  type: MusicAlbum
  date published: 2019-07-25
album: Sen no hanataba
  type: MusicAlbum
  date published: 2020-04-10
album: 千の花束
  type: MusicAlbum
  date published: 2020-04-10
album: 明日への階段
  type: MusicAlbum
  date published: 2023-03-10
album: ASUENO KAIDAN
  type: MusicAlbum
  date published: 2023-03-10
album: VIVA LA VIDA / HIKARI NO SEKAI
  type: MusicAlbum
  date published: 2023-05-12
album: VIVA LA VIDA / 光の世界
  type: MusicAlbum
  date published: 2023-05-12
  track: 光の世界
    type: MusicRecording
    duration: PT5M40S
    duration ms: 340016
    explicit: false
    by artist: Defspiral
    in album: VIVA LA VIDA / 光の世界
      type: MusicAlbum
      date published: 2023-05-12
    genre: j-rock
    genre: visual kei
    isrc code: TCJPV2396578
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T17:21:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x17030d4a77c1b16760cef24a6a17ab526359b09fbc1ee981c7a00263e06c0d1d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958761
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958761
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: 光の世界
album: ALEGRIA / FLASH
album: ULYSSES
album: CHRONO TRAVELER
album: Nitefall
album: ECLIPSE
album: SPIN THE UNIVERSE -Ai no Wakusei-
album: 銀河航路
album: GINGAKOURO

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPV2396578

OTSTimestamp
type: PropertyValue
value: 2026-07-19T17:49:48Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17030d4a77c1b16760cef24a6a17ab526359b09fbc1ee981c7a00263e06c0d1d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/TCJPV2396578.
date published: 2026-07-19T17:49:48Z

光の世界
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 112.023
additional property: Musical Key
  type: PropertyValue
  value: 8
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.493
additional property: Energy
  type: PropertyValue
  value: 0.83
additional property: Speechiness
  type: PropertyValue
  value: 0.036
additional property: Acousticness
  type: PropertyValue
  value: 0.007
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.107
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.308
additional property: Loudness (dB)
  type: PropertyValue
  value: -3.739
additional property: Key Name
  type: PropertyValue
  value: Ab
additional property: Mode Name
  type: PropertyValue
  value: Minor

ALEGRIA / FLASH
type: MusicAlbum
date published: 2023-05-28

ALEGRIA / FLASH
type: MusicAlbum
date published: 2023-05-28

ULYSSES
type: MusicAlbum
date published: 2024-03-22

ULYSSES
type: MusicAlbum
date published: 2024-03-22

CHRONO TRAVELER
type: MusicAlbum
date published: 2025-02-22
track: CHRONO TRAVELER
  type: MusicRecording
  duration: PT4M27S
  duration ms: 267544
  explicit: false
  by artist: Defspiral
  in album: CHRONO TRAVELER
    type: MusicAlbum
    date published: 2025-02-22
  genre: j-rock
  genre: visual kei
  isrc code: TCJPE2503328
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T23:41:13+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf04e5416ed6146c2d6b284c52c254efd5ca291d4f385c4f2085c141360b30acf
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956857
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956857
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPE2503328
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T01:26:17Z
  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 0xf04e5416ed6146c2d6b284c52c254efd5ca291d4f385c4f2085c141360b30acf. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCJPE2503328.
    date published: 2026-07-06T01:26:17Z
  audio: CHRONO TRAVELER
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 145.953
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.437
    additional property: Energy
      type: PropertyValue
      value: 0.976
    additional property: Speechiness
      type: PropertyValue
      value: 0.164
    additional property: Acousticness
      type: PropertyValue
      value: 0
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.07
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.22
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.091
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

CHRONO TRAVELER
type: MusicAlbum
date published: 2025-02-22

Nitefall
type: MusicAlbum
date published: 2025-05-26

Nitefall
type: MusicAlbum
date published: 2025-05-26

ECLIPSE
type: MusicAlbum
date published: 2025-08-10

ECLIPSE
type: MusicAlbum
date published: 2025-08-10

SPIN THE UNIVERSE -Ai no Wakusei-
type: MusicAlbum
date published: 2025-09-11

SPIN THE UNIVERSE -Ai no Wakusei-
type: MusicAlbum
date published: 2025-09-11

銀河航路
type: MusicAlbum
date published: 2025-10-11

GINGAKOURO
type: MusicAlbum
date published: 2025-10-11