Ec Marv
type: MusicGroup
popularity: 21
followers: 20784
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2087a285eb10b5157d496859f32081fe9aee86274c85039b7b55cb2286332aca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c3fc4bff-d14f-4cba-95f1-7c24cd2683ea.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c3fc4bff-d14f-4cba-95f1-7c24cd2683ea.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c3fc4bff-d14f-4cba-95f1-7c24cd2683ea
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2087a285eb10b5157d496859f32081fe9aee86274c85039b7b55cb2286332aca","name":"Ec Marv","registered_at":"2026-06-12T09:14:07Z","symbol":"NIM0252912","token_address":"0x1a7b2f5de1ee3520f7babb2fd266a1feb3bce076","type":"artist","uuid":"c3fc4bff-d14f-4cba-95f1-7c24cd2683ea"}
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 0x2087a285eb10b5157d496859f32081fe9aee86274c85039b7b55cb2286332aca. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3fc4bff-d14f-4cba-95f1-7c24cd2683ea.json and https://artists.proofprofile.net/proofs/artist/c3fc4bff-d14f-4cba-95f1-7c24cd2683ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x2087a285eb10b5157d496859f32081fe9aee86274c85039b7b55cb2286332aca","name":"Ec Marv","registered_at":"2026-06-12T09:14:07Z","symbol":"NIM0252912","token_address":"0x1a7b2f5de1ee3520f7babb2fd266a1feb3bce076","type":"artist","uuid":"c3fc4bff-d14f-4cba-95f1-7c24cd2683ea"}
album: Thats My Bestfriend
  type: MusicAlbum
  date published: 2015-10-11
album: Thats My Bestfriend
  type: MusicAlbum
  date published: 2015-10-11
  track: Thats My Bestfriend
    type: MusicRecording
    duration: PT2M51S
    duration ms: 171937
    explicit: false
    by artist: Ec Marv
    in album: Thats My Bestfriend
      type: MusicAlbum
      date published: 2015-10-11
    isrc code: TCAHQ2389236
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T05:46:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xee4cb76c8a268f1041222dc2859426585d66ce07f72bb7da5ca98b57bab37b0e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958373
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958373
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAHQ2389236
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T06:09:33Z
    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 0xee4cb76c8a268f1041222dc2859426585d66ce07f72bb7da5ca98b57bab37b0e. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCAHQ2389236.
      date published: 2026-07-17T06:09:33Z
    audio: Thats My Bestfriend
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 92.713
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.48
      additional property: Energy
        type: PropertyValue
        value: 0.618
      additional property: Speechiness
        type: PropertyValue
        value: 0.398
      additional property: Acousticness
        type: PropertyValue
        value: 0.68
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.104
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.339
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.808
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Before the Fame
  type: MusicAlbum
  date published: 2016-03-16
album: Bestfriend, Pt. 2
  type: MusicAlbum
  date published: 2016-05-23
album: Here for You (feat. Britt Bandz)
  type: MusicAlbum
  date published: 2016-08-15
album: Bestfriend, Pt. 3
  type: MusicAlbum
  date published: 2016-09-09
album: Bestfriend, Pt. 3
  type: MusicAlbum
  date published: 2016-09-09
album: Nah Fr
  type: MusicAlbum
  date published: 2016-11-18
album: Been Doin That Shit
  type: MusicAlbum
  date published: 2016-12-31
album: Nothin to It
  type: MusicAlbum
  date published: 2017-03-04
album: Remember When
  type: MusicAlbum
  date published: 2017-03-24
album: Cleveland on the Map
  type: MusicAlbum
  date published: 2017-04-07
album: They Tried It
  type: MusicAlbum
  date published: 2017-06-13
album: Blizzard
  type: MusicAlbum
  date published: 2017-06-27
album: Before the Fame 3
  type: MusicAlbum
  date published: 2017-11-05
album: Bigger Picture
  type: MusicAlbum
  date published: 2018-01-12
album: Who Run It
  type: MusicAlbum
  date published: 2018-04-04
album: No Limit
  type: MusicAlbum
  date published: 2018-06-24
album: Lemarv James
  type: MusicAlbum
  date published: 2018-07-27
album: Before the Fame 4
  type: MusicAlbum
  date published: 2019-03-29
album: Before the Fame 4
  type: MusicAlbum
  date published: 2019-03-29
album: Free the Gang
  type: MusicAlbum
  date published: 2019-05-07
album: Left the City
  type: MusicAlbum
  date published: 2019-07-04
album: So Cleveland
  type: MusicAlbum
  date published: 2019-09-15
album: Blast Off
  type: MusicAlbum
  date published: 2019-11-26
album: Hope
  type: MusicAlbum
  date published: 2019-11-26
album: Venting
album: Letter to Bill, Pt.2
album: Beat da Odds
album: In My Feelings
album: It's Forever Up

Venting
type: MusicAlbum
date published: 2020-07-10

Letter to Bill, Pt.2
type: MusicAlbum
date published: 2020-09-10

Beat da Odds
type: MusicAlbum
date published: 2021-01-01

In My Feelings
type: MusicAlbum
date published: 2022-01-13

It's Forever Up
type: MusicAlbum
date published: 2022-10-31