Singular Value
type: MusicGroup
description: In mathematics, in particular functional analysis, the singular values of a compact operator acting between Hilbert spaces and , are the square roots of the (necessarily non-negative) eigenvalues o
popularity: 2
followers: 13
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb69438f86af6e9f1515f290e18c15f154dbcd768bc7cd645954cd3d3263ff983
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e08527c5-c9fd-478a-90aa-1eb404559fbb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e08527c5-c9fd-478a-90aa-1eb404559fbb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e08527c5-c9fd-478a-90aa-1eb404559fbb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb69438f86af6e9f1515f290e18c15f154dbcd768bc7cd645954cd3d3263ff983","name":"Singular Value","registered_at":"2026-06-21T06:33:18Z","symbol":"NIM1848843","token_address":"0x8ec3a23b027bed00b03c7c51029a9a29858ef70c","type":"artist","uuid":"e08527c5-c9fd-478a-90aa-1eb404559fbb"}
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 0xb69438f86af6e9f1515f290e18c15f154dbcd768bc7cd645954cd3d3263ff983. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e08527c5-c9fd-478a-90aa-1eb404559fbb.json and https://artists.proofprofile.net/proofs/artist/e08527c5-c9fd-478a-90aa-1eb404559fbb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xb69438f86af6e9f1515f290e18c15f154dbcd768bc7cd645954cd3d3263ff983","name":"Singular Value","registered_at":"2026-06-21T06:33:18Z","symbol":"NIM1848843","token_address":"0x8ec3a23b027bed00b03c7c51029a9a29858ef70c","type":"artist","uuid":"e08527c5-c9fd-478a-90aa-1eb404559fbb"}
album: Alles nichts ohne Dich
  type: MusicAlbum
  date published: 2025-09-19
  track: Alles nichts ohne Dich
    type: MusicRecording
    duration: PT3M29S
    duration ms: 209778
    explicit: false
    by artist: Singular Value
    in album: Alles nichts ohne Dich
      type: MusicAlbum
      date published: 2025-09-19
    isrc code: QZZ7X2565102
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T03:02:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf73db13ff58947173492c5bc6b2da84d244e6fdf2d9ba34bc6029c95536773eb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958650
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958650
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7X2565102
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T03:36:41Z
    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 0xf73db13ff58947173492c5bc6b2da84d244e6fdf2d9ba34bc6029c95536773eb. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZZ7X2565102.
      date published: 2026-07-19T03:36:41Z
    audio: Alles nichts ohne Dich
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 114.965
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
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      additional property: Energy
        type: PropertyValue
        value: 0.813
      additional property: Speechiness
        type: PropertyValue
        value: 0.06
      additional property: Acousticness
        type: PropertyValue
        value: 0.195
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.139
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.197
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.275
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major