Delta
type: MusicGroup
genre: djent
genre: power metal
genre: progressive metal
description: Delta commonly refers to: Delta (letter) (Δ or δ), the fourth letter of the Greek alphabet D (NATO phonetic alphabet: "Delta"), the fourth letter in the Latin alphabet River delta, at a river mout
popularity: 15
followers: 3463
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-15T01:43:13Z
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 0x7dac15e2ea92eb87085c7d3e71e0352b7260b2174817590cd1b9a5e0dc075bb0. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8b989f86-d009-473d-b516-1186d8a1261c.json and https://artists.proofprofile.net/proofs/artist/8b989f86-d009-473d-b516-1186d8a1261c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T01:43:13Z
album: Apollyon Is Free
  type: MusicAlbum
  date published: 2005-01-15
album: Black & Cold
  type: MusicAlbum
  date published: 2006-03-03
album: Black & Cold
  type: MusicAlbum
  date published: 2007-05-03
album: Crashbreaker
  type: MusicAlbum
  date published: 2008-03-03
album: Crashbreaker
  type: MusicAlbum
  date published: 2008-10-28
album: Deny Humanity
  type: MusicAlbum
  date published: 2010-08-21
album: Alone
  type: MusicAlbum
  date published: 2013-06-07
album: The End of Philosophy
  type: MusicAlbum
  date published: 2013-11-01
  track: Like a Man
    type: MusicRecording
    duration: PT4M30S
    duration ms: 270480
    explicit: false
    by artist: Delta
    in album: The End of Philosophy
      type: MusicAlbum
      date published: 2013-11-01
    genre: djent
    genre: power metal
    genre: progressive metal
    isrc code: USHM91354097
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    additional property: CopyrightStatus
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T02:23:20Z
    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 0x0acf60e405dcdc8bc0f9f0293e84044a1b6a86d7422316d82e702ff1508bdc25. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/USHM91354097.
      date published: 2026-07-04T02:23:20Z
    audio: Like a Man
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 161.963
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.42
      additional property: Energy
        type: PropertyValue
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      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
        type: PropertyValue
        value: 0.114
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.419
      additional property: Loudness (dB)
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      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
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album: The End of Philosophy
  type: MusicAlbum
  date published: 2013-11-01
  track: Like a Man
    type: MusicRecording
    duration: PT4M30S
    duration ms: 270480
    explicit: false
    by artist: Delta
    in album: The End of Philosophy
      type: MusicAlbum
      date published: 2013-11-01
    genre: djent
    genre: power metal
    genre: progressive metal
    isrc code: CL1251604109
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    additional property: CopyrightStatus
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 0xded8f721df09386535a2e1820b69c97966d17bd0d2be80aef078bee28f8bb509. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/CL1251604109.
      date published: 2026-07-05T18:48:28Z
    audio: Like a Man
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 161.934
      additional property: Musical Key
      additional property: Mode (Major/Minor)
      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: New Philosophy
album: War Inside Me
album: Fake Freedom
album: Hate Recipe
album: Fears
album: Oceans
album: Live in Fear
album: The Tower
album: At Last
album: Gemini
album: So Wrong!
album: Appassionata Allegro Metal Troppo

Musical Key
type: PropertyValue
value: 0

Mode (Major/Minor)
type: PropertyValue
value: 1

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.417

Energy
type: PropertyValue
value: 0.936

Speechiness
type: PropertyValue
value: 0.091

Acousticness
type: PropertyValue
value: 0

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.118

Valence (Positivity)
type: PropertyValue
value: 0.444

Loudness (dB)
type: PropertyValue
value: -4.597

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

New Philosophy
type: MusicAlbum
date published: 2014-04-28

War Inside Me
type: MusicAlbum
date published: 2017-05-18

Alone
type: MusicAlbum
date published: 2017-07-21

Fake Freedom
type: MusicAlbum
date published: 2018-03-26

Hate Recipe
type: MusicAlbum
date published: 2019-07-26

Fears
type: MusicAlbum
date published: 2019-09-27

Oceans
type: MusicAlbum
date published: 2020-11-13

Fears
type: MusicAlbum
date published: 2021-05-25

Fears
type: MusicAlbum
date published: 2021-05-25

Live in Fear
type: MusicAlbum
date published: 2023-03-27

The Tower
type: MusicAlbum
date published: 2023-05-03

At Last
type: MusicAlbum
date published: 2023-11-02

Gemini
type: MusicAlbum
date published: 2024-07-18

So Wrong!
type: MusicAlbum
date published: 2024-08-23

Gemini
type: MusicAlbum
date published: 2024-09-27
track: Gemini
  type: MusicRecording
  duration: PT5M55S
  duration ms: 355580
  explicit: false
  by artist: Delta
  in album: Gemini
    type: MusicAlbum
    date published: 2024-09-27
  genre: djent
  genre: power metal
  genre: progressive metal
  isrc code: USHM82469270
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0xd03fcda00f31c04f9b45cbe3c458fd7523f2a5b07a2c9f79ebf027dd46951df1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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    value: 958680
  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/USHM82469270
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T06:04:14Z
  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 0xd03fcda00f31c04f9b45cbe3c458fd7523f2a5b07a2c9f79ebf027dd46951df1. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/USHM82469270.
    date published: 2026-07-19T06:04:14Z
  audio: Gemini
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 106.038
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.513
    additional property: Energy
      type: PropertyValue
      value: 0.929
    additional property: Speechiness
      type: PropertyValue
      value: 0.122
    additional property: Acousticness
      type: PropertyValue
      value: 0.003
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.008
    additional property: Liveness
      type: PropertyValue
      value: 0.126
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.16
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.669
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: The Great Dilemma
  type: MusicRecording
  duration: PT4M33S
  duration ms: 273000
  explicit: false
  by artist: Delta
  in album: Gemini
    type: MusicAlbum
    date published: 2024-09-27
  genre: djent
  genre: power metal
  genre: progressive metal
  isrc code: USL4Q2484611
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T10:32:41+00:00
  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958543
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958543
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4Q2484611
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T11:58:44Z
  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 0x61da87c3aa02af9086e4a03a8d5d88a8969d287db3af7dbb115a4f1b4cf72a32. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USL4Q2484611.
    date published: 2026-07-18T11:58:44Z
  audio: The Great Dilemma
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 145.011
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 1
    additional property: Danceability
      type: PropertyValue
      value: 0.497
    additional property: Energy
      type: PropertyValue
      value: 0.974
    additional property: Speechiness
      type: PropertyValue
      value: 0.125
    additional property: Acousticness
      type: PropertyValue
      value: 0
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.028
    additional property: Liveness
      type: PropertyValue
      value: 0.077
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.4
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.223
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Appassionata Allegro Metal Troppo
type: MusicAlbum
date published: 2025-07-04