Waldir Calmon
type: MusicGroup
popularity: 17
followers: 1956
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb4dac58e2d487ed9fbf5453072eea577f4d9bac2be1a13b7e6e1080722d5299b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953803
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953803
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eaf77443-967d-4df3-a674-babaf2ac5546.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eaf77443-967d-4df3-a674-babaf2ac5546.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/eaf77443-967d-4df3-a674-babaf2ac5546
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T15:41:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb4dac58e2d487ed9fbf5453072eea577f4d9bac2be1a13b7e6e1080722d5299b","name":"Waldir Calmon","registered_at":"2026-06-15T05:13:31Z","symbol":"NIM0692867","token_address":"0x40d11eee87d23b2297e44ff345c639f864410815","type":"artist","uuid":"eaf77443-967d-4df3-a674-babaf2ac5546"}
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 0xb4dac58e2d487ed9fbf5453072eea577f4d9bac2be1a13b7e6e1080722d5299b. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eaf77443-967d-4df3-a674-babaf2ac5546.json and https://artists.proofprofile.net/proofs/artist/eaf77443-967d-4df3-a674-babaf2ac5546.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T15:41:00Z
  text: {"copyright_id":"0xb4dac58e2d487ed9fbf5453072eea577f4d9bac2be1a13b7e6e1080722d5299b","name":"Waldir Calmon","registered_at":"2026-06-15T05:13:31Z","symbol":"NIM0692867","token_address":"0x40d11eee87d23b2297e44ff345c639f864410815","type":"artist","uuid":"eaf77443-967d-4df3-a674-babaf2ac5546"}
album: Samba... Alegria do Brasil
  type: MusicAlbum
  date published: 1956-01-01
album: Feito Para Dançar, n° 6: Waldir Calmon e Seu Conjunto
  type: MusicAlbum
  date published: 1957-04-05
album: Waldir Calmon E Seus Multisons
  type: MusicAlbum
  date published: 1970-03-03
album: Romance Sin Palabras
  type: MusicAlbum
  date published: 1971-08-17
album: Feito Para Dançar N° 5
  type: MusicAlbum
  date published: 1971-08-17
album: Para Ouvir Amando N° 2
  type: MusicAlbum
  date published: 1971-08-17
album: Chá Dançante: nº 2
  type: MusicAlbum
  date published: 1971-08-17
album: Clássicos Para Dançar
  type: MusicAlbum
  date published: 1982-08-17
album: Selecao De Ouro
  type: MusicAlbum
  date published: 1999
album: Selecao De Ouro
  type: MusicAlbum
  date published: 1999-01-01
album: O Lounge Brasileiro De Waldir Calmon, Moacyr Silva E Walter Wanderley
  type: MusicAlbum
  date published: 2004-01-01
album: The Music of Brazil / Dancing With the Orchestra of Waldir Calmon, Vol. 1 / Recordings 1952-1957
  type: MusicAlbum
  date published: 2009-10-02
album: Grandes Exitos
  type: MusicAlbum
  date published: 2012-11-01
  track: Na Cadência do Samba
    type: MusicRecording
    duration: PT2M51S
    duration ms: 171720
    explicit: false
    by artist: Waldir Calmon
    in album: Grandes Exitos
      type: MusicAlbum
      date published: 2012-11-01
    isrc code: USA561422810
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T23:36:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xdb0ce058575839521da36ebe815f1592cb40c037da440c10841c82ddb7cfe32a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958216
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958216
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA561422810
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T00:00:34Z
    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 0xdb0ce058575839521da36ebe815f1592cb40c037da440c10841c82ddb7cfe32a. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USA561422810.
      date published: 2026-07-16T00:00:34Z
    audio: Na Cadência do Samba
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 112.51
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.574
      additional property: Energy
        type: PropertyValue
        value: 0.473
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.711
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.105
      additional property: Liveness
        type: PropertyValue
        value: 0.245
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.707
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.11
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Risque
  type: MusicAlbum
  date published: 2014-08-01
album: Dinorah
  type: MusicAlbum
  date published: 2014-09-28
album: Essential Hits
  type: MusicAlbum
  date published: 2014-11-15
album: Dinorah
  type: MusicAlbum
  date published: 2019-02-28
album: Dinorah
  type: MusicAlbum
  date published: 2019-08-24
album: Feito Para Dançar Nº 5
  type: MusicAlbum
  date published: 2021-01-06
album: Solovox Master
  type: MusicAlbum
  date published: 2022-11-04
album: Alegria do Brasil
  type: MusicAlbum
  date published: 2023-04-07
album: Ritmos Melódicos N.º 3
  type: MusicAlbum
  date published: 2024-03-22
album: Por Amor à Viagem
  type: MusicAlbum
  date published: 2024-07-05
track: Airport Love Theme - Mixed
  type: MusicRecording
  duration: PT2M30S
  duration ms: 150975
  explicit: false
  by artist: Waldir Calmon
  in album: Brazil 45s (DJ Mix)
    type: MusicAlbum
    date published: 2024-04-19
  isrc code: GBCLQ2100262
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Airport Love Theme - Mixed
track: Afro Som - Mixed

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-25T18:23:33+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x3f22a8ff9e376d8a72a4bcffe7932acdfe1406dcf45837544d935f8c036d8493

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956304

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956304

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCLQ2100262

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:55:08Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f22a8ff9e376d8a72a4bcffe7932acdfe1406dcf45837544d935f8c036d8493. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCLQ2100262.
date published: 2026-07-02T03:55:08Z

Airport Love Theme - Mixed
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 110.678
additional property: Musical Key
  type: PropertyValue
  value: 5
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.609
additional property: Energy
  type: PropertyValue
  value: 0.677
additional property: Speechiness
  type: PropertyValue
  value: 0.079
additional property: Acousticness
  type: PropertyValue
  value: 0.214
additional property: Instrumentalness
  type: PropertyValue
  value: 0.619
additional property: Liveness
  type: PropertyValue
  value: 0.146
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.483
additional property: Loudness (dB)
  type: PropertyValue
  value: -11.152
additional property: Key Name
  type: PropertyValue
  value: F
additional property: Mode Name
  type: PropertyValue
  value: Minor

Afro Som - Mixed
type: MusicRecording
duration: PT1M17S
duration ms: 77850
explicit: false
by artist: Waldir Calmon
in album: Brazil 45s (DJ Mix)
  type: MusicAlbum
  date published: 2024-04-19
isrc code: GBCLQ2100263
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T21:15:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x72de5b921e90b2a12cc13155c5f67faf656943e11dd146837081846c6c333ebd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCLQ2100263
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0x72de5b921e90b2a12cc13155c5f67faf656943e11dd146837081846c6c333ebd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCLQ2100263.
  date published: 2026-07-02T03:55:08Z
audio: Afro Som - Mixed
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.982
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.585
  additional property: Energy
    type: PropertyValue
    value: 0.582
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.049
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.046
  additional property: Liveness
    type: PropertyValue
    value: 0.172
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.429
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.782
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor