UNDEAD
type: MusicGroup
description: thumb|The Ghost of Barbara Radziwiłł by Wojciech Gerson. Ghosts are a common form of the undead. The undead are beings in mythology, legend, or fiction that are deceased but behave as if they were
popularity: 40
followers: 4300
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4f6c009c71446f621c243ed038d5d5153af046eae32cd9f1b55ecba1d3c119. 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/eda341fb-2f21-499b-9fa8-8d33ad94e6fe.json and https://artists.proofprofile.net/proofs/artist/eda341fb-2f21-499b-9fa8-8d33ad94e6fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
album: あんさんぶるスターズ！ アルバムシリーズ UNDEAD
  type: MusicAlbum
  date published: 2014
album: あんさんぶるスターズ！！ UNDEAD「Nightless World」 (Game Edit)
  type: MusicAlbum
  date published: 2020-11-01
album: あんさんぶるスターズ！！ ESアイドルソング season1 UNDEAD
  type: MusicAlbum
  date published: 2021-02-24
  track: Nightless World
    type: MusicRecording
    duration: PT3M40S
    duration ms: 220733
    explicit: false
    by artist: UNDEAD
    in album: あんさんぶるスターズ！！ ESアイドルソング season1 UNDEAD
      type: MusicAlbum
      date published: 2021-02-24
    isrc code: JPD642000446
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    additional property: CopyrightStatus
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0xa1d78496f0237746c964e27768ea0dd8ecad2daa97ad3a9016879c2abed94bfd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPD642000446.
      date published: 2026-07-05T19:27:56Z
    audio: Nightless World
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Time Signature
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      additional property: Danceability
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      additional property: Energy
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  track: BRAND NEW STARS!!
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    by artist: UNDEAD
    in album: あんさんぶるスターズ！！ ESアイドルソング season1 UNDEAD
      type: MusicAlbum
      date published: 2021-02-24
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    additional property: OTSTimestamp
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    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 0x4714dfb13da0baa9e2a1f440ee18ba3821e3174e43d7ad7f3df69237944c7d02. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPD642000447.
      date published: 2026-07-02T16:51:38Z
    audio: BRAND NEW STARS!!
      type: AudioObject
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      additional property: Danceability
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album: あんさんぶるスターズ！！ UNDEAD「FORBIDDEN RAIN」 (Game Edit)
album: UNDEAD ✕ 紅月「PERFECTLY-IMPERFECT」 あんさんぶるスターズ！！ FUSION UNIT SERIES 05 (Instrumental)
album: UNDEAD ✕ 紅月「PERFECTLY-IMPERFECT」 あんさんぶるスターズ！！ FUSION UNIT SERIES 05
album: UNDEAD「FORBIDDEN RAIN」あんさんぶるスターズ！！ ESアイドルソング season2
album: あんさんぶるスターズ！！ UNDEAD「Sustain Memories」 (Game Edit)
album: UNDEAD「Sustain Memories」あんさんぶるスターズ！！ ESアイドルソング season3
album: あんさんぶるスターズ！！ UNDEAD「Resurrection of Soul」 (Game Edit)
album: あんさんぶるスターズ！！アルバムシリーズ 『TRIP』 UNDEAD
album: あんさんぶるスターズ！ アルバムシリーズ UNDEAD (Instrumental)
album: あんさんぶるスターズ！！ UNDEAD「SWINGIN' PARONIRIA」
album: あんさんぶるスターズ！！アルバムシリーズ 『TRIP』 UNDEAD (Instrumental)
album: UNDEAD「Wanderlust Sailing」あんさんぶるスターズ！！ ESアイドルソング season6
album: This Side Of The Grave
album: Blood Enemy
album: This Side of The Grave

Valence (Positivity)
type: PropertyValue
value: 0.72

Loudness (dB)
type: PropertyValue
value: -1.359

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Major

あんさんぶるスターズ！！ UNDEAD「FORBIDDEN RAIN」 (Game Edit)
type: MusicAlbum
date published: 2021-11-13

UNDEAD ✕ 紅月「PERFECTLY-IMPERFECT」 あんさんぶるスターズ！！ FUSION UNIT SERIES 05 (Instrumental)
type: MusicAlbum
date published: 2021-12-09

UNDEAD ✕ 紅月「PERFECTLY-IMPERFECT」 あんさんぶるスターズ！！ FUSION UNIT SERIES 05
type: MusicAlbum
date published: 2021-12-09
track: FUSIONIC STARS!!
  type: MusicRecording
  duration: PT3M49S
  duration ms: 229253
  explicit: false
  by artist: UNDEAD
  in album: UNDEAD ✕ 紅月「PERFECTLY-IMPERFECT」 あんさんぶるスターズ！！ FUSION UNIT SERIES 05
    type: MusicAlbum
    date published: 2021-12-09
  isrc code: JPD642101064
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  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPD642101064
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T10:47:44Z
  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 0x957baf1764e45c1b689503ff2bb59e8ae276bd9045c2d53ab92a76770494e8c6. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPD642101064.
    date published: 2026-07-03T10:47:44Z
  audio: FUSIONIC STARS!!
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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      type: PropertyValue
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    additional property: Valence (Positivity)
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    additional property: Key Name
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    additional property: Mode Name
      type: PropertyValue
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UNDEAD「FORBIDDEN RAIN」あんさんぶるスターズ！！ ESアイドルソング season2
type: MusicAlbum
date published: 2022-01-19
track: FORBIDDEN RAINs
  type: MusicRecording
  duration: PT3M2S
  duration ms: 182880
  explicit: false
  by artist: UNDEAD
  in album: UNDEAD「FORBIDDEN RAIN」あんさんぶるスターズ！！ ESアイドルソング season2
    type: MusicAlbum
    date published: 2022-01-19
  isrc code: JPD642101122
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T10:16:20+00:00
  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
    type: PropertyValue
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  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 0x64c72800c8a3b0c112caeacdb3a26f91f60986f1dc6a3e842aad897743a3fe92. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:10:12Z), 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/JPD642101122.
    date published: 2026-07-21T13:10:12Z
  audio: FORBIDDEN RAINs
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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あんさんぶるスターズ！！ UNDEAD「Sustain Memories」 (Game Edit)
type: MusicAlbum
date published: 2022-05-28

UNDEAD「Sustain Memories」あんさんぶるスターズ！！ ESアイドルソング season3
type: MusicAlbum
date published: 2022-08-17

あんさんぶるスターズ！！ UNDEAD「Resurrection of Soul」 (Game Edit)
type: MusicAlbum
date published: 2023-11-13

あんさんぶるスターズ！！アルバムシリーズ 『TRIP』 UNDEAD
type: MusicAlbum
date published: 2024-01-24
track: No one knows…
  type: MusicRecording
  duration: PT0M49S
  duration ms: 49093
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  by artist: UNDEAD
  in album: あんさんぶるスターズ！！アルバムシリーズ 『TRIP』 UNDEAD
    type: MusicAlbum
    date published: 2024-01-24
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    type: PropertyValue
    value: 2026-07-02T16:51:38Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90906f8e77171ec790c31707b4f1d4039689789d783f86e8763e858b385415c6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPD642300646.
    date published: 2026-07-02T16:51:38Z
  audio: No one knows…
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    additional property: Danceability
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    additional property: Key Name
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あんさんぶるスターズ！ アルバムシリーズ UNDEAD (Instrumental)
type: MusicAlbum
date published: 2024-05-26
track: Melody in the Dark (Instrumental)
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  additional property: OTSVerifyInstructions
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    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
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    date published: 2026-07-05T18:48:28Z
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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track: ハニーミルクはお好みで (Instrumental)
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  additional property: OTSBitcoinBlockVerifyURL
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  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
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    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dcab26d5bf92ad74d8bc021a5a0e7304fd8ec6386cedfdacbee880fec4b56ff. 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/JPD642400143.
    date published: 2026-07-05T01:12:41Z
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    additional property: Instrumentalness
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    additional property: Valence (Positivity)
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track: Valentine Eve's Nightmare (Instrumental)
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    value: https://blockstream.info/api/block-height/958965
  additional property: OTSVerificationAPI
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPD642400145
  additional property: OTSTimestamp
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  subject of: OpenTimestamps Proof of Existence
  audio: Valentine Eve's Nightmare (Instrumental)

OTSTimestamp
type: PropertyValue
value: 2026-07-21T04:29:05Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b76efc3ed571dbb1b38f5dc48cdc1c2ef415689db6bf453b3ec2ed379407366. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/JPD642400145.
date published: 2026-07-21T04:29:05Z

Valentine Eve's Nightmare (Instrumental)
type: AudioObject
additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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あんさんぶるスターズ！！ UNDEAD「SWINGIN' PARONIRIA」
type: MusicAlbum
date published: 2024-05-28

あんさんぶるスターズ！！アルバムシリーズ 『TRIP』 UNDEAD (Instrumental)
type: MusicAlbum
date published: 2024-06-29

UNDEAD「Wanderlust Sailing」あんさんぶるスターズ！！ ESアイドルソング season6
type: MusicAlbum
date published: 2025-07-13

This Side Of The Grave
type: MusicAlbum
date published: 2025-08-01

Blood Enemy
type: MusicAlbum
date published: 2025-08-22

This Side of The Grave
type: MusicAlbum
date published: 2025-09-19
track: I am the Curse
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    type: MusicAlbum
    date published: 2025-09-19
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  additional property: CopyrightRegisteredAt
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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    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 0x9bedd9e31723170d6e8ea061d882e695873c01b4159b5889294234d2544ce7f7. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/NOEOK2596030.
    date published: 2026-07-05T12:31:54Z
  audio: I am the Curse
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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      value: 0
    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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