Robert Johnson
type: MusicGroup
genre: blues
genre: classic blues
genre: country blues
description: Robert Leroy Johnson (May 8, 1911August 16, 1938) was an American blues musician and songwriter. His singing, guitar playing and songwriting on his landmark 1936 and 1937 recordings have influenced la
popularity: 46
followers: 602256
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd8f6732a2442df920c1cf4d62e5eb961874a69d8a7f6f06d6827b77f198642. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/198091eb-d98b-4a79-9f47-4cdee26e282a.json and https://artists.proofprofile.net/proofs/artist/198091eb-d98b-4a79-9f47-4cdee26e282a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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album: King Of The Delta Blues Singers
  type: MusicAlbum
  date published: 1937
  track: Cross Road Blues
  track: Come On In My Kitchen
  track: When You Got a Good Friend
  track: Ramblin' On My Mind
track: Ramblin' On My Mind - Mono
track: Ramblin' On My Mind - Stereo
track: Divertimento No. 17 in D Major, K. 334: III. Menuetto & Trio
track: Cross Road Blues

Cross Road Blues
type: MusicRecording
duration: PT2M29S
duration ms: 149560
explicit: false
by artist: Robert Johnson
in album: King Of The Delta Blues Singers
  type: MusicAlbum
  date published: 1937
popularity: 54
isrc code: USSM13600025
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-13T12:47:07+00:00
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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8704d6669994c289e24fc0831ce2238a7ab68d8400056827960f33dbd4d4c044. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USSM13600025.
  date published: 2026-06-13T15:41:10Z
audio: Cross Road Blues
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  additional property: Time Signature
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
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Come On In My Kitchen
type: MusicRecording
duration: PT2M52S
duration ms: 172306
explicit: false
by artist: Robert Johnson
in album: King Of The Delta Blues Singers
  type: MusicAlbum
  date published: 1937
popularity: 40
isrc code: USSM13600027
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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additional property: ProofProfileEvidenceStatus
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3151f9fac70437b9b9076b578554fac94afcf0543c2b6dedb7acbdbc34f80b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USSM13600027.
  date published: 2026-06-13T12:47:07Z
audio: Come On In My Kitchen
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When You Got a Good Friend
type: MusicRecording
duration: PT2M38S
duration ms: 158800
explicit: false
by artist: Robert Johnson
in album: King Of The Delta Blues Singers
  type: MusicAlbum
  date published: 1937
popularity: 32
isrc code: USSM13600034
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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
additional property: ProofProfileEvidenceStatus
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc685c08d502a066d7f1dc2cdc78bf98086f12a5bd14a51727e31cc8582dc988. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USSM13600034.
  date published: 2026-06-13T15:41:10Z
audio: When You Got a Good Friend
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  additional property: Danceability
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Ramblin' On My Mind
type: MusicRecording
duration: PT2M52S
duration ms: 172160
explicit: false
by artist: Robert Johnson
in album: King Of The Delta Blues Singers
  type: MusicAlbum
  date published: 1937
popularity: 31
isrc code: USSM13600035
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80da9a5b19d401ff633f75dd4df65d3fbf21729670d4d07e8c1f3f58bc4c4f63. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USSM13600035.
  date published: 2026-06-13T13:32:09Z
audio: Ramblin' On My Mind
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  additional property: Key Name
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  additional property: Mode Name
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Ramblin' On My Mind - Mono
type: MusicRecording
duration: PT3M6S
duration ms: 186240
explicit: false
by artist: Robert Johnson
by artist: John Mayall & The Bluesbreakers
by artist: Eric Clapton
in album: Blues Breakers
  type: MusicAlbum
  date published: 1966-06-22
isrc code: GBF076623590
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebefe882acb97ec27277d12b0cb05f46a1e782f64497929580607bc12870039. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBF076623590.
  date published: 2026-06-13T17:25:41Z
audio: Ramblin' On My Mind - Mono
  type: AudioObject
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  additional property: Mode Name
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Ramblin' On My Mind - Stereo
type: MusicRecording
duration: PT3M5S
duration ms: 185640
explicit: false
by artist: Robert Johnson
by artist: John Mayall & The Bluesbreakers
by artist: Eric Clapton
in album: Blues Breakers
  type: MusicAlbum
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isrc code: GBF076822660
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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audio: Ramblin' On My Mind - Stereo
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Divertimento No. 17 in D Major, K. 334: III. Menuetto & Trio
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by artist: New York Philomusica Chamber Ensemble
by artist: Robert Johnson
in album: Wolfgang Amadeus Mozart: Essential Chamber Music
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genre: classical
genre: classical-era
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additional property: OTSVerifyInstructions
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  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
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  date published: 2026-07-02T03:55:08Z
audio: Divertimento No. 17 in D Major, K. 334: III. Menuetto & Trio
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Cross Road Blues
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in album: American Epic: The Best of Blues
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  date published: 2017-05-12
popularity: 5
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  date published: 2026-07-29T19:35:34Z
audio: Cross Road Blues
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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