World Under Blood
type: MusicGroup
genre: death metal
genre: melodic death metal
description: World Under Blood is an American melodic death metal band from Los Angeles, California. Formed in 2006, the band originally featured vocalist and guitarist Deron Miller and drummer Tim Yeung, with bas
popularity: 7
followers: 2912
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14726e97713495ecd53fd2a6f719d028bed970e283acf922c820cafedf956606. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5409eef4-1db3-452e-93b8-43d94074c67e.json and https://artists.proofprofile.net/proofs/artist/5409eef4-1db3-452e-93b8-43d94074c67e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
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album: Tactical
  type: MusicAlbum
  date published: 2011
album: Tactical
  type: MusicAlbum
  date published: 2011-07-26
album: Tactical
  type: MusicAlbum
  date published: 2011-07-26
album: Tactical (Bonus Version)
  type: MusicAlbum
  date published: 2011-07-26
album: Tactical
  type: MusicAlbum
  date published: 2011-07-29
album: Tactical
  type: MusicAlbum
  date published: 2011-07-29
  track: A God Among the Waste
    type: MusicRecording
    duration: PT4M14S
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    by artist: World Under Blood
    in album: Tactical
      type: MusicAlbum
      date published: 2011-07-29
    genre: death metal
    genre: melodic death metal
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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 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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c9d3fca5fba80b5b5087f9d3d101e9e8a869b5cf670649f859465674b495f5. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/DED831100197.
      date published: 2026-07-20T07:01:21Z
    audio: A God Among the Waste
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        value: 129.091
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      additional property: Mode (Major/Minor)
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      additional property: Time Signature
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        value: 4
      additional property: Danceability
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      additional property: Energy
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      additional property: Speechiness
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        value: 0.093
      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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        value: 0.197
      additional property: Loudness (dB)
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      additional property: Key Name
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        value: C#
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        value: Major
  track: Into the Arms of Cruelty
    type: MusicRecording
    duration: PT4M39S
    duration ms: 279560
    explicit: false
    by artist: World Under Blood
    in album: Tactical
      type: MusicAlbum
      date published: 2011-07-29
    genre: death metal
    genre: melodic death metal
    isrc code: DED831100198
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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 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 0x063c10f4b7460fd8d8da3ce2429437917330cc544d80e80cb087a849cfdcc2d3. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/DED831100198.
      date published: 2026-07-21T03:51:22Z
    audio: Into the Arms of Cruelty
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      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: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Pyro-Compulsive
album: Tactical (Exclusive Bonus Version)

Danceability
type: PropertyValue
value: 0.458

Energy
type: PropertyValue
value: 0.991

Speechiness
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value: 0.133

Acousticness
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value: 0

Instrumentalness
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value: 0.006

Liveness
type: PropertyValue
value: 0.407

Valence (Positivity)
type: PropertyValue
value: 0.386

Loudness (dB)
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value: -5.124

Key Name
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value: F

Mode Name
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value: Minor

Pyro-Compulsive
type: MusicRecording
duration: PT4M44S
duration ms: 284093
explicit: false
by artist: World Under Blood
in album: Tactical
  type: MusicAlbum
  date published: 2011-07-29
genre: death metal
genre: melodic death metal
isrc code: DED831100199
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additional property: CopyrightStatus
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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
  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 0xa8d9dd0abc415e1ae5dc4f1da6d726da909f09c4013a6845fea49cfa83bf1315. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/DED831100199.
  date published: 2026-07-22T02:05:55Z
audio: Pyro-Compulsive
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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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
    value: 0.3
  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -4.364
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
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Tactical
type: MusicAlbum
date published: 2011-07-29

Tactical (Exclusive Bonus Version)
type: MusicAlbum
date published: 2011-07-29

Tactical
type: MusicAlbum
date published: 2011-08-01