SirHamnet
type: MusicGroup
popularity: 26
followers: 2321
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf12437e5824416efd5345e83a4f9d3dd3c8f2e1578136078dff309718ed99d7e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4afdb274-8a94-434a-a897-eb1daa037971.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4afdb274-8a94-434a-a897-eb1daa037971.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4afdb274-8a94-434a-a897-eb1daa037971
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
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 0xf12437e5824416efd5345e83a4f9d3dd3c8f2e1578136078dff309718ed99d7e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4afdb274-8a94-434a-a897-eb1daa037971.json and https://artists.proofprofile.net/proofs/artist/4afdb274-8a94-434a-a897-eb1daa037971.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
album: Deathly Loneliness Attacks
  type: MusicAlbum
  date published: 2023-05-06
  track: Deathly Loneliness Attacks (Instrumental)
    type: MusicRecording
    duration: PT4M12S
    duration ms: 252692
    explicit: false
    by artist: SirHamnet
    in album: Deathly Loneliness Attacks
      type: MusicAlbum
      date published: 2023-05-06
    isrc code: QZPJ32257527
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T18:24:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6eba1f81f8b02f9e0c04650f2175a60fe7c80e480ff08792c9b681062d092072
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32257527
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0x6eba1f81f8b02f9e0c04650f2175a60fe7c80e480ff08792c9b681062d092072. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZPJ32257527.
      date published: 2026-07-03T19:59:51Z
    audio: Deathly Loneliness Attacks (Instrumental)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 156.009
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.527
      additional property: Energy
        type: PropertyValue
        value: 0.79
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.764
      additional property: Liveness
        type: PropertyValue
        value: 0.296
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.797
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.215
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Meikyou Shisui (From "Fate/Grand Order")
  type: MusicAlbum
  date published: 2023-07-24
  track: Meikyou Shisui (From "Fate/Grand Order")
    type: MusicRecording
    duration: PT5M0S
    duration ms: 300357
    explicit: false
    by artist: SirHamnet
    in album: Meikyou Shisui (From "Fate/Grand Order")
      type: MusicAlbum
      date published: 2023-07-24
    isrc code: QZPJ32269392
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T15:19:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9be31114ac63cae518823a6e3ceb42d36070541ec14d2089f0486e745c0a1fe1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32269392
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0x9be31114ac63cae518823a6e3ceb42d36070541ec14d2089f0486e745c0a1fe1. 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/QZPJ32269392.
      date published: 2026-07-05T01:12:41Z
    audio: Meikyou Shisui (From "Fate/Grand Order")
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 111.915
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.657
      additional property: Energy
        type: PropertyValue
        value: 0.505
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.314
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.149
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.328
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.783
      additional property: Key Name
      additional property: Mode Name
album: Pulse Towards Tomorrow - OP Size (From "The Legend of Heroes: Trails of Cold Steel")
album: MKDR (Eng. Cover)
album: letter song ~10 years later~
album: Warning Signs (Emo Rock Arrange)
album: Ano Natsu ga Houwa Suru (English Cover)
album: Sakura Biyori and Time Machine (English Version)

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Minor

Pulse Towards Tomorrow - OP Size (From "The Legend of Heroes: Trails of Cold Steel")
type: MusicAlbum
date published: 2023-08-22

MKDR (Eng. Cover)
type: MusicAlbum
date published: 2023-09-30
track: MKDR (Eng. Cover)
  type: MusicRecording
  duration: PT4M28S
  duration ms: 268909
  explicit: false
  by artist: SirHamnet
  in album: MKDR (Eng. Cover)
    type: MusicAlbum
    date published: 2023-09-30
  isrc code: QZPJ32300609
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-14T20:50:59+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1d96924acd72c00ddd6ccbdfff6b48a5c53eae8eeadbebbb853f75b577af6ad3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958067
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958067
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32300609
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-14T21:26:15Z
  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 0x1d96924acd72c00ddd6ccbdfff6b48a5c53eae8eeadbebbb853f75b577af6ad3. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZPJ32300609.
    date published: 2026-07-14T21:26:15Z
  audio: MKDR (Eng. Cover)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 109.993
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.728
    additional property: Energy
      type: PropertyValue
      value: 0.83
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.231
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.048
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.897
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.933
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Minor

letter song ~10 years later~
type: MusicAlbum
date published: 2025-01-02

Warning Signs (Emo Rock Arrange)
type: MusicAlbum
date published: 2025-07-26

Ano Natsu ga Houwa Suru (English Cover)
type: MusicAlbum
date published: 2025-09-24

Sakura Biyori and Time Machine (English Version)
type: MusicAlbum
date published: 2025-11-09