SERF
type: MusicGroup
genre: dream pop
genre: post-punk
description: A spin exchange relaxation-free (SERF) magnetometer is a type of magnetometer developed at Princeton University in the early 2000s. SERF magnetometers measure magnetic fields by using lasers to detec
popularity: 12
followers: 819
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3f39e1bcb1c2c07aa1b4e1261f4fa49086c2a28c9559f5dbeb14fe7e69872144
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953616
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953616
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1bb08d91-724f-45c1-98c0-9c70ffe6c075.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1bb08d91-724f-45c1-98c0-9c70ffe6c075.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1bb08d91-724f-45c1-98c0-9c70ffe6c075
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T08:58:35Z
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 0x3f39e1bcb1c2c07aa1b4e1261f4fa49086c2a28c9559f5dbeb14fe7e69872144. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1bb08d91-724f-45c1-98c0-9c70ffe6c075.json and https://artists.proofprofile.net/proofs/artist/1bb08d91-724f-45c1-98c0-9c70ffe6c075.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T08:58:35Z
album: You Get a Sense You've Been Wrong
  type: MusicAlbum
  date published: 2019-10-10
album: You Get a Sense You've Been Wrong
  type: MusicAlbum
  date published: 2019-10-10
album: Health & Education
  type: MusicAlbum
  date published: 2019-11-01
album: Love Glove / SERF Split
  type: MusicAlbum
  date published: 2020-02-27
album: Faceless
  type: MusicAlbum
  date published: 2020-03-26
album: Restoration
  type: MusicAlbum
  date published: 2020-06-12
album: All You Need In Life Is Someone To Love And Your Family
  type: MusicAlbum
  date published: 2020-07-31
album: Everything Is Great
  type: MusicAlbum
  date published: 2021-08-05
album: 1260
  type: MusicAlbum
  date published: 2021-09-09
album: Coma
  type: MusicAlbum
  date published: 2021-10-14
album: The Dunes You Wander In
  type: MusicAlbum
  date published: 2021-11-18
  track: 1260
    type: MusicRecording
    duration: PT3M0S
    duration ms: 180526
    explicit: false
    by artist: SERF
    in album: The Dunes You Wander In
      type: MusicAlbum
      date published: 2021-11-18
    genre: dream pop
    genre: post-punk
    isrc code: AUMEV2156700
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-11T13:40:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x83f62b05ab4eebef9d1562d60f539ff8bc338067ecf3489192165e227f8fc8bd
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957576
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957576
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2156700
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-11T14:19:48Z
    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 0x83f62b05ab4eebef9d1562d60f539ff8bc338067ecf3489192165e227f8fc8bd. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/AUMEV2156700.
      date published: 2026-07-11T14:19:48Z
    audio: 1260
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 174.576
      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: 0.33
      additional property: Energy
        type: PropertyValue
        value: 0.911
      additional property: Speechiness
        type: PropertyValue
        value: 0.048
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.027
      additional property: Liveness
        type: PropertyValue
        value: 0.13
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.558
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.956
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Soup
  type: MusicAlbum
  date published: 2022-08-25
album: Leaking Vessel
  type: MusicAlbum
  date published: 2022-11-10
album: Speak Ill
  type: MusicAlbum
  date published: 2023-05-25
album: Broccoli Leaves
  type: MusicAlbum
  date published: 2024-10-03