Doug Mayer
type: MusicGroup
popularity: 11
followers: 274
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6d644161abd9301faa994d9348f227f8c2cfcecbde73429a3bc24295fb6e1bb0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953713
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953713
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/80637cf5-d515-4f1f-a100-20b2086d6f18.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/80637cf5-d515-4f1f-a100-20b2086d6f18.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/80637cf5-d515-4f1f-a100-20b2086d6f18
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T00:33:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6d644161abd9301faa994d9348f227f8c2cfcecbde73429a3bc24295fb6e1bb0","name":"Doug Mayer","registered_at":"2026-06-14T17:57:23Z","symbol":"NIM0531477","token_address":"0x31b3a2c600fc7b903033d0e3fd7879823af1ccd0","type":"artist","uuid":"80637cf5-d515-4f1f-a100-20b2086d6f18"}
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 0x6d644161abd9301faa994d9348f227f8c2cfcecbde73429a3bc24295fb6e1bb0. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80637cf5-d515-4f1f-a100-20b2086d6f18.json and https://artists.proofprofile.net/proofs/artist/80637cf5-d515-4f1f-a100-20b2086d6f18.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0x6d644161abd9301faa994d9348f227f8c2cfcecbde73429a3bc24295fb6e1bb0","name":"Doug Mayer","registered_at":"2026-06-14T17:57:23Z","symbol":"NIM0531477","token_address":"0x31b3a2c600fc7b903033d0e3fd7879823af1ccd0","type":"artist","uuid":"80637cf5-d515-4f1f-a100-20b2086d6f18"}
album: DAS ANTIGAS
  type: MusicAlbum
  date published: 2022-11-08
  track: DAS ANTIGAS
    type: MusicRecording
    duration: PT2M37S
    duration ms: 157500
    explicit: true
    by artist: Doug Mayer
    in album: DAS ANTIGAS
      type: MusicAlbum
      date published: 2022-11-08
    isrc code: BCI5M2200043
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T07:12:02+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x46551fcb8c4acde8ef13293710f413ef1c1fa3a181fa04c0478a81d79036ccbd
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956500
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956500
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCI5M2200043
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T13:55:21Z
    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 0x46551fcb8c4acde8ef13293710f413ef1c1fa3a181fa04c0478a81d79036ccbd. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/BCI5M2200043.
      date published: 2026-07-03T13:55:21Z
    audio: DAS ANTIGAS
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 128
      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: 0.871
      additional property: Energy
        type: PropertyValue
        value: 0.865
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.041
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.151
      additional property: Liveness
        type: PropertyValue
        value: 0.115
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.792
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.862
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: CONTRAMÃO
  type: MusicAlbum
  date published: 2022-12-06
album: BAILE
  type: MusicAlbum
  date published: 2023-02-07
album: TUPÍ
  type: MusicAlbum
  date published: 2023-03-21
album: SATÍVA
  type: MusicAlbum
  date published: 2023-04-20
album: SEMPRE FOI BAILE PACK #1
  type: MusicAlbum
  date published: 2023-08-03
album: MONTAGEM DAS TREVAS
  type: MusicAlbum
  date published: 2023-10-05
  track: MONTAGEM DAS TREVAS
    type: MusicRecording
    duration: PT3M50S
    duration ms: 230977
    explicit: true
    by artist: Doug Mayer
    in album: MONTAGEM DAS TREVAS
      type: MusicAlbum
      date published: 2023-10-05
    isrc code: BCI5M2300096
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T23:17:48+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5c86896dc14f4d261c820e023f12125ebea056697f24441983357ed87cde2efc
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958798
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958798
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCI5M2300096
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T02:19:32Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c86896dc14f4d261c820e023f12125ebea056697f24441983357ed87cde2efc. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:19:32Z), 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/BCI5M2300096.
      date published: 2026-07-20T02:19:32Z
    audio: MONTAGEM DAS TREVAS
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 133.052
      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: 0.918
      additional property: Energy
        type: PropertyValue
        value: 0.98
      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: DAS ANTIGAS II

Speechiness
type: PropertyValue
value: 0.322

Acousticness
type: PropertyValue
value: 0.229

Instrumentalness
type: PropertyValue
value: 0.03

Liveness
type: PropertyValue
value: 0.628

Valence (Positivity)
type: PropertyValue
value: 0.332

Loudness (dB)
type: PropertyValue
value: -4.63

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Minor

DAS ANTIGAS II
type: MusicAlbum
date published: 2024-02-20