M
type: MusicGroup
description: M, or m, is the thirteenth letter of the Latin alphabet, used in the modern English alphabet, the alphabets of several western European languages and others worldwide. Its name in English is em (prono
popularity: 5
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa6d7d811310931e90be2d5a4010720490749d2d143f6036bee6283315a6de511
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e7b5fc8-4d00-4e88-bbad-885f00228453.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e7b5fc8-4d00-4e88-bbad-885f00228453.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8e7b5fc8-4d00-4e88-bbad-885f00228453
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
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 0xa6d7d811310931e90be2d5a4010720490749d2d143f6036bee6283315a6de511. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e7b5fc8-4d00-4e88-bbad-885f00228453.json and https://artists.proofprofile.net/proofs/artist/8e7b5fc8-4d00-4e88-bbad-885f00228453.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
album: duele estar contigo
  type: MusicAlbum
  date published: 2021-01-30
album: nopasanada
  type: MusicAlbum
  date published: 2025-07-16
  track: nopasanada
    type: MusicRecording
    duration: PT0M56S
    duration ms: 56158
    explicit: true
    by artist: M
    in album: nopasanada
      type: MusicAlbum
      date published: 2025-07-16
    isrc code: QZWFH2536873
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T20:07:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x33a447b90f71df05627c26ad4400c804a951866bbb71b95068db02e4e67c9f92
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958203
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958203
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFH2536873
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T23:08:50Z
    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 0x33a447b90f71df05627c26ad4400c804a951866bbb71b95068db02e4e67c9f92. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:08:50Z), 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/QZWFH2536873.
      date published: 2026-07-15T23:08:50Z
    audio: nopasanada
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 137.077
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.702
      additional property: Energy
        type: PropertyValue
        value: 0.574
      additional property: Speechiness
        type: PropertyValue
        value: 0.316
      additional property: Acousticness
        type: PropertyValue
        value: 0.62
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.015
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.503
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.979
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: self_medication.wav
  type: MusicAlbum
  date published: 2025-07-19