MD
type: MusicGroup
description: MD or variants may refer to: Academic degrees Doctor of Medicine () Doctor of Medicine in Ayurveda MD (Homeopathy) Arts, entertainment and media Main droite or mano destra ('right hand'), in mus
popularity: 8
followers: 2020
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa4bf39342d783c19d927090da1251ef4509f63db6225369aa09420c0aa1bce55
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954139
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954139
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7fceafa4-c33f-41d1-bb3e-43c3c361d88b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7fceafa4-c33f-41d1-bb3e-43c3c361d88b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7fceafa4-c33f-41d1-bb3e-43c3c361d88b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T21:12:18Z
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 0xa4bf39342d783c19d927090da1251ef4509f63db6225369aa09420c0aa1bce55. Chain 2 (Bitcoin): anchored in block 954139 (2026-06-17T21:12:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7fceafa4-c33f-41d1-bb3e-43c3c361d88b.json and https://artists.proofprofile.net/proofs/artist/7fceafa4-c33f-41d1-bb3e-43c3c361d88b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T21:12:18Z
album: Atentamente Yo
  type: MusicAlbum
  date published: 2014-01-04
album: Atentamente Yo
  type: MusicAlbum
  date published: 2014-02-20
album: Todo Me da Igual
  type: MusicAlbum
  date published: 2015-04-22
album: Un Día a la Vez
  type: MusicAlbum
  date published: 2016-02-17
album: Seguimos
  type: MusicAlbum
  date published: 2016-08-26
album: Disfruta
  type: MusicAlbum
  date published: 2017-03-17
album: Enséñame a Bailar
  type: MusicAlbum
  date published: 2018-06-15
  track: Enséñame a Bailar
    type: MusicRecording
    duration: PT4M5S
    duration ms: 245225
    explicit: false
    by artist: MD
    in album: Enséñame a Bailar
      type: MusicAlbum
      date published: 2018-06-15
    isrc code: TCADQ1893827
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T23:16:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2d08fc25467406ad8177704d16c505408d06c62154381903686de3c3ea70f626
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959076
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959076
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADQ1893827
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T23:41:40Z
    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 0x2d08fc25467406ad8177704d16c505408d06c62154381903686de3c3ea70f626. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/TCADQ1893827.
      date published: 2026-07-21T23:41:40Z
    audio: Enséñame a Bailar
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.069
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.676
      additional property: Energy
        type: PropertyValue
        value: 0.697
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.293
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.11
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.787
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.797
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Días de Sol
  type: MusicAlbum
  date published: 2019-02-01
album: Siempre Tú
  type: MusicAlbum
  date published: 2019-02-22
  track: Siempre Tú
    type: MusicRecording
    duration: PT3M39S
    duration ms: 219136
    explicit: false
    by artist: MD
    in album: Siempre Tú
      type: MusicAlbum
      date published: 2019-02-22
    isrc code: TCAEC1902195
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T10:12:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa3542403f376a85f8ed2bea457f405a42998c415e568a5a5eb03699d2a765b43
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959123
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959123
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAEC1902195
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T11:35:32Z
    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 0xa3542403f376a85f8ed2bea457f405a42998c415e568a5a5eb03699d2a765b43. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/TCAEC1902195.
      date published: 2026-07-22T11:35:32Z
    audio: Siempre Tú
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 75.997
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      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: El Mundo Está Al Revés
album: Todo Es Temporal
album: Ver y No Tocar

Danceability
type: PropertyValue
value: 0.642

Energy
type: PropertyValue
value: 0.706

Speechiness
type: PropertyValue
value: 0.069

Acousticness
type: PropertyValue
value: 0.139

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.052

Valence (Positivity)
type: PropertyValue
value: 0.528

Loudness (dB)
type: PropertyValue
value: -5.733

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

El Mundo Está Al Revés
type: MusicAlbum
date published: 2020-04-15

Todo Es Temporal
type: MusicAlbum
date published: 2020-09-01

Ver y No Tocar
type: MusicAlbum
date published: 2023-09-29