Windhand
type: MusicGroup
genre: doom metal
genre: sludge metal
genre: stoner rock
description: Windhand is an American stoner metal band formed in Richmond, Virginia, in 2008. Currently signed to Relapse Records, Windhand released their most recent album, Eternal Return, in October 2018. Hist
popularity: 38
followers: 110568
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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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  date published: 2026-06-12T19:24:56Z
album: Windhand (Deluxe Edition)
  type: MusicAlbum
  date published: 2012-02-28
  track: Heap Wolves (Practice Space Demo 2009) - Bonus Track
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    genre: doom metal
    genre: sludge metal
    genre: stoner rock
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-19T21:49:29Z
    audio: Heap Wolves (Practice Space Demo 2009) - Bonus Track
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  track: Amaranth (Original Version Remixed) - Bonus Track
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    genre: doom metal
    genre: sludge metal
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-21T09:01:36Z
    audio: Amaranth (Original Version Remixed) - Bonus Track
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  track: Black Candles (Practice Space Demo 2010) - Bonus Track
  track: Winter Sun (Practice Space Demo 2010) - Bonus Track
album: Windhand
album: Orchard - Single
album: Soma
album: Two Urns - Single
album: Crypt Key - Single
album: Hyperion - Single
album: Grief's Infernal Flower
album: Old Evil - Single
album: Succubus - Single
album: Three Sisters - Single
album: Split
album: Grey Garden
album: Diablerie
album: Eternal Return
album: Live Elsewhere
album: Levitation Sessions (Live)
album: Relax Heavy

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Black Candles (Practice Space Demo 2010) - Bonus Track
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genre: doom metal
genre: sludge metal
genre: stoner rock
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-22T07:06:49Z
audio: Black Candles (Practice Space Demo 2010) - Bonus Track
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Winter Sun (Practice Space Demo 2010) - Bonus Track
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by artist: Windhand
in album: Windhand (Deluxe Edition)
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  date published: 2012-02-28
genre: doom metal
genre: sludge metal
genre: stoner rock
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:16:32Z
audio: Winter Sun (Practice Space Demo 2010) - Bonus Track
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Windhand
type: MusicAlbum
date published: 2012-02-28

Orchard - Single
type: MusicAlbum
date published: 2013-07-30

Soma
type: MusicAlbum
date published: 2013-09-17

Two Urns - Single
type: MusicAlbum
date published: 2015-07-07

Crypt Key - Single
type: MusicAlbum
date published: 2015-08-06

Hyperion - Single
type: MusicAlbum
date published: 2015-09-03

Grief's Infernal Flower
type: MusicAlbum
date published: 2015-09-18
track: Hesperus
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  genre: doom metal
  genre: sludge metal
  genre: stoner rock
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-12T20:39:38Z
  audio: Hesperus
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track: Aition
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  genre: sludge metal
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-15T16:06:46Z
  audio: Aition
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Old Evil - Single
type: MusicAlbum
date published: 2017-12-06

Succubus - Single
type: MusicAlbum
date published: 2018-01-10

Three Sisters - Single
type: MusicAlbum
date published: 2018-02-12

Split
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date published: 2018-02-16
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  genre: sludge metal
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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
  subject of: OpenTimestamps Proof of Existence
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ff56aa316c5b1af2cd8ed6c1e63c96b700068d279f6aa0aaf67c81d5fc8af5. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/US2641839202.
    date published: 2026-07-16T09:16:54Z
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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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track: Alucard Ad 2018
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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
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-05T01:43:49Z
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track: Succubus
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Succubus
track: Ain't That Lovin' You, Baby

OTSHash
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd872bc70f763975cfa40ee7bdb02eecd28b1623e878e8cfd29dfa16a5468a015. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/US2641839204.
date published: 2026-07-03T10:47:44Z

Succubus
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additional property: Mode (Major/Minor)
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additional property: Danceability
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additional property: Acousticness
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Ain't That Lovin' You, Baby
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genre: doom metal
genre: sludge metal
genre: stoner rock
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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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  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
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  date published: 2026-07-21T21:31:39Z
audio: Ain't That Lovin' You, Baby
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Grey Garden
type: MusicAlbum
date published: 2018-08-01

Diablerie
type: MusicAlbum
date published: 2018-09-05

Eternal Return
type: MusicAlbum
date published: 2018-10-05

Live Elsewhere
type: MusicAlbum
date published: 2019-03-29

Levitation Sessions (Live)
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date published: 2020-11-27
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-06T01:26:17Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-21T02:28:36Z
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Relax Heavy
type: MusicAlbum
date published: 2022-07-16