Speex
type: MusicGroup
description: The Speex project is an attempt to create a free software speech codec, unencumbered by patent restrictions. Speex is licensed under the BSD License and is used with the Xiph.org Foundation's Ogg cont
popularity: 4
followers: 32
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/7320647e-19ec-4b0e-9cc1-3d959392669a.ots
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  value: https://artists.proofprofile.net/proofs/artist/7320647e-19ec-4b0e-9cc1-3d959392669a.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-17T08:11:48Z
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 0xdc13ac0a71156dff518746e467410261db78113401988bcc17ea51b357dcd847. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7320647e-19ec-4b0e-9cc1-3d959392669a.json and https://artists.proofprofile.net/proofs/artist/7320647e-19ec-4b0e-9cc1-3d959392669a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Dreaming Force
  type: MusicAlbum
  date published: 2023-10-02
album: Dreamscape
  type: MusicAlbum
  date published: 2024-02-04
album: Silence
  type: MusicAlbum
  date published: 2024-08-18
album: Rising to the Clouds
  type: MusicAlbum
  date published: 2024-11-20
album: Falling Apart
  type: MusicAlbum
  date published: 2025-03-21
  track: Falling Apart
    type: MusicRecording
    duration: PT2M52S
    duration ms: 172027
    explicit: false
    by artist: Speex
    in album: Falling Apart
      type: MusicAlbum
      date published: 2025-03-21
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    additional property: CopyrightStatus
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      type: PropertyValue
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    additional property: OTSBitcoinBlock
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      type: PropertyValue
      value: https://blockstream.info/api/block-height/958969
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6N2595090
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T04:58:13Z
    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 0x983e543a89a41a48c02fd1b15dcf0c681c2b0123958c1211eb6438310c4de492. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZK6N2595090.
      date published: 2026-07-21T04:58:13Z
    audio: Falling Apart
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 180.119
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.522
      additional property: Energy
        type: PropertyValue
        value: 0.94
      additional property: Speechiness
        type: PropertyValue
        value: 0.11
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.241
      additional property: Liveness
        type: PropertyValue
        value: 0.252
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.265
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.977
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: The Power
  type: MusicAlbum
  date published: 2025-07-11
  track: The Power
    type: MusicRecording
    duration: PT3M22S
    duration ms: 202025
    explicit: false
    by artist: Speex
    in album: The Power
      type: MusicAlbum
      date published: 2025-07-11
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T00:52:48Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6983f767f9d1360ef69c72f764914fc77e2a0e2223a5faf7309cd2dc491e7df0. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZTBE2542436.
      date published: 2026-07-13T00:52:48Z
    audio: The Power
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 157.955
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.457
      additional property: Energy
        type: PropertyValue
        value: 0.948
      additional property: Speechiness
        type: PropertyValue
        value: 0.357
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: FIRE

Acousticness
type: PropertyValue
value: 0.023

Instrumentalness
type: PropertyValue
value: 0.03

Liveness
type: PropertyValue
value: 0.395

Valence (Positivity)
type: PropertyValue
value: 0.204

Loudness (dB)
type: PropertyValue
value: -7.583

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Minor

FIRE
type: MusicAlbum
date published: 2025-10-17