Hard Head
type: MusicGroup
description: Hard Head (stylized as HAP.D HEAD), originally known in Korea as Dr. Bulgehead (), is an obscure 2D side-scrolling arcade platform game developed and published by SunA Electronics of an unknown team o
popularity: 11
followers: 1686
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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 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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc930dcc5f3f02e97d5d900f06c8eb4a064313d8c2ee8e2f7365f88ef9567851b. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09748eac-9ca8-4d41-a933-fa7b0dec9bbf.json and https://artists.proofprofile.net/proofs/artist/09748eac-9ca8-4d41-a933-fa7b0dec9bbf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T06:21:39Z
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album: Grind Hard - Single
  type: MusicAlbum
  date published: 2012-05-29
album: Can't Change - Single
  type: MusicAlbum
  date published: 2012-06-05
album: Like What - Single
  type: MusicAlbum
  date published: 2012-06-12
album: That's Gangsta - Single
  type: MusicAlbum
  date published: 2012-06-12
album: New West Coast - Single
  type: MusicAlbum
  date published: 2012-06-12
album: Just Because (feat. K9) - Single
  type: MusicAlbum
  date published: 2012-06-19
album: Grind Hard
  type: MusicAlbum
  date published: 2012-08-28
album: Back Up Off Me (feat. 40 Glocc & 2Face) - Single
  type: MusicAlbum
  date published: 2012-08-28
album: Hood Ties
  type: MusicAlbum
  date published: 2012-10-09
album: D.O.A. - Day of Arrival
  type: MusicAlbum
  date published: 2012-11-13
album: No More
  type: MusicAlbum
  date published: 2013-02-05
album: Making Moves
  type: MusicAlbum
  date published: 2013-02-05
album: Gotta Get Over
  type: MusicAlbum
  date published: 2013-02-05
album: OL G. Bossin (feat. Tony B., Joe Nash, Ms. Switcha)
  type: MusicAlbum
  date published: 2013-04-30
album: Blacc's Only
  type: MusicAlbum
  date published: 2013-05-21
album: You Don't Understand - Single
  type: MusicAlbum
  date published: 2014-02-25
album: How It Is - Single
  type: MusicAlbum
  date published: 2014-03-18
album: Cali Clown
  type: MusicAlbum
  date published: 2014-03-18
album: High Breed
  type: MusicAlbum
  date published: 2014-04-29
album: Glasses At Nite - Single
  type: MusicAlbum
  date published: 2014-08-26
album: Heroin (feat. Killa & Curtis Young) - Single
  type: MusicAlbum
  date published: 2015-01-20
album: Here We Go Again - Single
  type: MusicAlbum
  date published: 2015-02-24
album: The Control
  type: MusicAlbum
  date published: 2015-04-28
album: Ninety Three (feat. B.G. Knocc Out, Loesta & Clinton Wayne) - Single
  type: MusicAlbum
  date published: 2015-07-10
album: On The Move - Single
  type: MusicAlbum
  date published: 2015-07-17
album: Just 1 - Single
  type: MusicAlbum
  date published: 2015-07-17
album: Life Can Be (feat. JE) - Single
  type: MusicAlbum
  date published: 2015-08-21
album: Red Cup's (feat. JE & L Double) - Single
  type: MusicAlbum
  date published: 2015-09-11
album: Traumatized (feat. Winsday) - Single
  type: MusicAlbum
  date published: 2015-09-18
album: West Coast Don't Party Stop
  type: MusicAlbum
  date published: 2015-09-18
album: I Go (feat. Lexus Blue & JE) - SIngle
  type: MusicAlbum
  date published: 2015-09-18
album: Run Away - Single
  type: MusicAlbum
  date published: 2015-09-25
album: Slidding (feat. KILLA, JE)
  type: MusicAlbum
  date published: 2015-10-13
album: California #1
  type: MusicAlbum
  date published: 2015-10-13
album: Can’t Trust Police (feat. Winsday)
  type: MusicAlbum
  date published: 2015-10-13
album: Death Row (feat. Winsday)
  type: MusicAlbum
  date published: 2015-10-13
album: What You Want, Anything? (feat. Tru Verse, Winsday)
  type: MusicAlbum
  date published: 2015-10-13
album: That's the Devil (feat. Winsday & JE) - Single
  type: MusicAlbum
  date published: 2015-10-16
album: Making It Hot (feat. Rich Loco) - Single
  type: MusicAlbum
  date published: 2015-10-16
album: O'Lord - Single
  type: MusicAlbum
  date published: 2015-10-20
album: Control 2
  type: MusicAlbum
  date published: 2016-01-22
album: Thought I for Got - EP
  type: MusicAlbum
  date published: 2016-01-30
album: Notorious
  type: MusicAlbum
  date published: 2016-07-21
album: Ride for the Money (feat. Killa) - Single
  type: MusicAlbum
  date published: 2016-07-22
album: We Ain't Got No Fear In Us - Single
  type: MusicAlbum
  date published: 2016-07-24
album: I Found U (feat. Lazy Bone & Deacon) - Single
  type: MusicAlbum
  date published: 2016-08-19
album: In My Life - Single
  type: MusicAlbum
  date published: 2016-08-30
album: Drop Top (feat. Chrissy) - Single
  type: MusicAlbum
  date published: 2016-09-16
album: You Know We Be On (feat. Razor Ant & Killa)
  type: MusicAlbum
  date published: 2016-09-26
album: Gangsta Gangsta World Wide
  type: MusicAlbum
  date published: 2016-10-14
album: Got the Word
  type: MusicAlbum
  date published: 2016-10-28
album: If I Was White
  type: MusicAlbum
  date published: 2016-10-31
album: Hard to Smile
  type: MusicAlbum
  date published: 2016-11-25
album: So Good (feat. Brihtani Lee Shay & Sir Loon)
  type: MusicAlbum
  date published: 2016-11-30
album: I Like That (feat. Killa, Jelly Roll, Hash & Savii Cross)
album: Martial Law - EP
album: Real Nigga (feat. D Mac & Savii Cross)
album: I Found U (feat. Layzie Bone & Deacon)
album: Boss Is Bacc (feat. Tiago, Killa & Hash)
album: IDGAF (feat. Royalti, Killa & Saggzilla)
album: Whatever (feat. Stu Cheba, Sir Loon & Minnie)
album: I Wanna Ball Like Jordan
album: Die to Night (feat. Killa & Tiago)
album: Think About That

I Like That (feat. Killa, Jelly Roll, Hash & Savii Cross)
type: MusicAlbum
date published: 2016-12-16

Martial Law - EP
type: MusicAlbum
date published: 2016-12-23

Real Nigga (feat. D Mac & Savii Cross)
type: MusicAlbum
date published: 2017-01-13

I Found U (feat. Layzie Bone & Deacon)
type: MusicAlbum
date published: 2017-02-01

Boss Is Bacc (feat. Tiago, Killa & Hash)
type: MusicAlbum
date published: 2017-02-16

IDGAF (feat. Royalti, Killa & Saggzilla)
type: MusicAlbum
date published: 2017-03-17

Whatever (feat. Stu Cheba, Sir Loon & Minnie)
type: MusicAlbum
date published: 2017-03-31

I Wanna Ball Like Jordan
type: MusicAlbum
date published: 2017-04-20

Die to Night (feat. Killa & Tiago)
type: MusicAlbum
date published: 2017-05-06

Think About That
type: MusicAlbum
date published: 2017-05-19

King West (feat. Tiago & Royalti)
type: MusicAlbum
date published: 2017-06-02

What You Gonna Do with My Loving (feat. Takii, Big Ta Da & Boom Bam)
type: MusicAlbum
date published: 2017-07-28

Fire
type: MusicAlbum
date published: 2017-08-04

Sticc Up for Me
type: MusicAlbum
date published: 2017-08-11

Real with Us (feat. Tiago, Killa & Kebo)
type: MusicAlbum
date published: 2017-08-11

Ghetto Boy (feat. Razor Ant & Che Ba)
type: MusicAlbum
date published: 2017-08-25

Get That Doe (feat. Krissean, Sir Loon & J.E.)
type: MusicAlbum
date published: 2017-09-01

1/2 Mill (feat. Killa)
type: MusicAlbum
date published: 2017-12-25

Gorilla (feat. Killa)
type: MusicAlbum
date published: 2018-02-01

Take a Trip
type: MusicAlbum
date published: 2018-02-09

Califorina (feat. Boom Bam)
type: MusicAlbum
date published: 2018-06-22

Pop A Cop
type: MusicAlbum
date published: 2018-08-31

Ware the Weed @ (feat. Jelly Roll, Worse & Hash)
type: MusicAlbum
date published: 2018-11-09

Solider
type: MusicAlbum
date published: 2018-11-23

Most Dangerous (feat. Kebo)
type: MusicAlbum
date published: 2018-12-25

For Give Me Not (feat. Dwayne Neely)
type: MusicAlbum
date published: 2018-12-28

Well Find You (feat. Cat Blade)
type: MusicAlbum
date published: 2019-03-01

Rich People Poor People
type: MusicAlbum
date published: 2019-03-15

Let's Pray
type: MusicAlbum
date published: 2019-08-16

Ride Wit Me (feat. Killa)
type: MusicAlbum
date published: 2019-09-20

Where The Real (feat. Mz. Mistress & King Scratch)
type: MusicAlbum
date published: 2019-09-27

Reccless
type: MusicAlbum
date published: 2020-05-08

War Games
type: MusicAlbum
date published: 2020-07-30

It's On
type: MusicAlbum
date published: 2020-08-14

Liquor & Tree (feat. Killa)
type: MusicAlbum
date published: 2021-03-26

Pressure
type: MusicAlbum
date published: 2022-05-05

Hood Day 9x10
type: MusicAlbum
date published: 2022-09-09

Cheec These Cat
type: MusicAlbum
date published: 2023-01-22

N Your Back Yard
type: MusicAlbum
date published: 2023-02-14

Same Old Thang
type: MusicAlbum
date published: 2023-03-29

S.C. City In L.A.
type: MusicAlbum
date published: 2023-06-02

Get Real
type: MusicAlbum
date published: 2023-06-09

Naw
type: MusicAlbum
date published: 2023-07-14

Shorty Want (feat. Emo Trap)
type: MusicAlbum
date published: 2023-07-21

Way Of Life
type: MusicAlbum
date published: 2023-07-21

Money, Sex, Car's (feat. This Jay & Holiday Ray)
type: MusicAlbum
date published: 2023-09-15

If You Fall
type: MusicAlbum
date published: 2023-12-22

I See Yea
type: MusicAlbum
date published: 2024-02-16

Hard Head
type: MusicAlbum
date published: 2024-03-19

bitch nigga
type: MusicAlbum
date published: 2025-06-20

Tighten Up (feat. Kebo)
type: MusicAlbum
date published: 2025-09-05