H. Hawkline
type: MusicGroup
genre: art pop
genre: psychedelic pop
description: Huw Evans (born 15 March 1985), also known as H. Hawkline, is a Welsh singer-songwriter and radio and television presenter based in Cardiff. He also lived and worked in Los Angeles for several years.
popularity: 15
followers: 9609
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additional property: OTSVerifyInstructions
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  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
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  date published: 2026-06-15T01:05:33Z
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album: A Cup of Salt
  type: MusicAlbum
  date published: 2011-08-15
album: The Strange Uses of Ox Gall
  type: MusicAlbum
  date published: 2011-08-29
album: Ghouls
  type: MusicAlbum
  date published: 2013-06-17
album: Ghouls
  type: MusicAlbum
  date published: 2013-06-17
album: Moons in My Mirror
  type: MusicAlbum
  date published: 2015-02-02
album: Moons In My Mirror
  type: MusicAlbum
  date published: 2015-02-02
album: In the Pink of Condition
  type: MusicAlbum
  date published: 2015-02-02
album: In the Pink of Condition
  type: MusicAlbum
  date published: 2015-02-02
album: In the Pink of Condition
  type: MusicAlbum
  date published: 2015-02-03
album: It's a Drag
  type: MusicAlbum
  date published: 2015-08-03
album: It's a Drag
  type: MusicAlbum
  date published: 2015-08-03
album: It's a Drag
  type: MusicAlbum
  date published: 2015-08-03
album: Last Thing On Your Mind
  type: MusicAlbum
  date published: 2017-01-18
album: Last Thing on Your Mind
  type: MusicAlbum
  date published: 2017-01-18
album: My Mine
  type: MusicAlbum
  date published: 2017-03-21
album: My Mine
  type: MusicAlbum
  date published: 2017-03-21
album: Engineers
  type: MusicAlbum
  date published: 2017-04-10
album: Engineers
  type: MusicAlbum
  date published: 2017-04-10
album: I Romanticize
  type: MusicAlbum
  date published: 2017-06-02
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      date published: 2017-06-02
    genre: art pop
    genre: psychedelic pop
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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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ceb655f930b5abf22e5d27b696e50cf637af1341811d3ebc0e07be8cb416d5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBPVV1601624.
      date published: 2026-07-03T21:18:05Z
    audio: Means That Much
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  track: Last Thing on Your Mind
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    by artist: H. Hawkline
    in album: I Romanticize
      type: MusicAlbum
      date published: 2017-06-02
    genre: art pop
    genre: psychedelic pop
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    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Last Thing on Your Mind
album: Milk For Flowers
album: Suppression Street
album: Plastic Man
album: Empty Room

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OTSVerificationAPI
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OTSTimestamp
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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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259ed1c0d6d98beec1fa7af432833035c1215ed8071e81d975e73b96f8e2071f. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/GBPVV1601633.
date published: 2026-07-17T05:45:43Z

Last Thing on Your Mind
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additional property: Tempo (BPM)
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additional property: Danceability
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additional property: Energy
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additional property: Instrumentalness
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additional property: Valence (Positivity)
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additional property: Mode Name
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I Romanticize
type: MusicAlbum
date published: 2017-06-02

I Romanticize
type: MusicAlbum
date published: 2017-06-02

Milk For Flowers
type: MusicAlbum
date published: 2022-11-15

Suppression Street
type: MusicAlbum
date published: 2022-12-08

Plastic Man
type: MusicAlbum
date published: 2023-01-30

Empty Room
type: MusicAlbum
date published: 2023-02-16

Milk For Flowers
type: MusicAlbum
date published: 2023-03-10
track: Milk For Flowers
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  duration: PT3M47S
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  by artist: H. Hawkline
  in album: Milk For Flowers
    type: MusicAlbum
    date published: 2023-03-10
  genre: art pop
  genre: psychedelic pop
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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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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca6775cdadba8217598f1a19795d116686799c653d2527b252f6361c60176af. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/GBPVV2003568.
    date published: 2026-07-14T21:07:34Z
  audio: Milk For Flowers
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track: Athens at Night
  type: MusicRecording
  duration: PT3M48S
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  by artist: H. Hawkline
  in album: Milk For Flowers
    type: MusicAlbum
    date published: 2023-03-10
  genre: art pop
  genre: psychedelic pop
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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
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    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30043ba05373eb70cf953f6103a071147ff9cfa261e9b8e746a793101d2002e2. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/GBPVV2003573.
    date published: 2026-07-19T08:43:25Z
  audio: Athens at Night
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