hadulm
type: MusicGroup
popularity: 8
followers: 68
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe2c59598f2069f7a2a0baae3983442c541a4075550d9f04e196cbd3199f01c18
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0e507ed0-c4d3-4656-92ed-7174dabbd428.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0e507ed0-c4d3-4656-92ed-7174dabbd428.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0e507ed0-c4d3-4656-92ed-7174dabbd428
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
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 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 0xe2c59598f2069f7a2a0baae3983442c541a4075550d9f04e196cbd3199f01c18. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0e507ed0-c4d3-4656-92ed-7174dabbd428.json and https://artists.proofprofile.net/proofs/artist/0e507ed0-c4d3-4656-92ed-7174dabbd428.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
album: Deltarune: Disbalance (Chapter 2 AU Soundtrack)
  type: MusicAlbum
  date published: 2019-08-25
album: MIRRORSIDE
  type: MusicAlbum
  date published: 2019-11-06
album: Ducklings
  type: MusicAlbum
  date published: 2019-11-09
album: UnnaM
  type: MusicAlbum
  date published: 2020-01-20
album: underswap UST
  type: MusicAlbum
  date published: 2020-06-12
  track: PAPYRUS!!
    type: MusicRecording
    duration: PT1M37S
    duration ms: 97500
    explicit: false
    by artist: hadulm
    in album: underswap UST
      type: MusicAlbum
      date published: 2020-06-12
    isrc code: QZTAT2459159
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T22:40:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa388d48397df1a09d4a6f2f33ee3bf4e7a4d87b0e774bacf2ca8de6b71533fd0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958792
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958792
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAT2459159
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T22:55:52Z
    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 0xa388d48397df1a09d4a6f2f33ee3bf4e7a4d87b0e774bacf2ca8de6b71533fd0. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZTAT2459159.
      date published: 2026-07-19T22:55:52Z
    audio: PAPYRUS!!
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.996
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.809
      additional property: Energy
        type: PropertyValue
        value: 0.525
      additional property: Speechiness
        type: PropertyValue
        value: 0.261
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.852
      additional property: Liveness
        type: PropertyValue
        value: 0.053
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.971
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.798
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Me when i
  type: MusicAlbum
  date published: 2020-07-14
album: FROSTCORE
  type: MusicAlbum
  date published: 2020-10-12
album: Snowtown
  type: MusicAlbum
  date published: 2021-01-18
album: NARANJA
  type: MusicAlbum
  date published: 2021-02-05
album: You and I, like birds on the sky
  type: MusicAlbum
  date published: 2021-03-06
album: Routine Check
  type: MusicAlbum
  date published: 2021-03-18
album: Perseverance Pass
  type: MusicAlbum
  date published: 2021-04-02
album: Hadulm's Undertale AU Collection, Vol. 1
  type: MusicAlbum
  date published: 2021-05-29
album: Hadulm's Undertale AU Collection, Vol. 2
  type: MusicAlbum
  date published: 2021-05-30
album: Hadulm's Undertale AU Collection, Vol. 3
  type: MusicAlbum
  date published: 2021-06-01
album: Hadulm's Undertale AU Collection, Vol. 4
  type: MusicAlbum
  date published: 2021-07-02
album: Starwalkin
  type: MusicAlbum
  date published: 2022-01-22
album: Still Alive
  type: MusicAlbum
  date published: 2023-02-23
album: Paths
  type: MusicAlbum
  date published: 2023-11-25
album: Through the world
  type: MusicAlbum
  date published: 2024-07-08
album: mjmstuff
  type: MusicAlbum
  date published: 2024-07-16
album: FIGHT THE WORLD
  type: MusicAlbum
  date published: 2024-08-25
album: For the last time
  type: MusicAlbum
  date published: 2024-12-10
album: LABERYNTH
  type: MusicAlbum
  date published: 2024-12-10
album: Square
  type: MusicAlbum
  date published: 2025-01-14
album: Even more stuff i made bundled together
  type: MusicAlbum
  date published: 2025-04-04
album: UnnaM(ed) Battle Music
  type: MusicAlbum
  date published: 2025-09-06