Pith Number

pith:TQUTKL2C

pith:2014:TQUTKL2CTRYSJT3L6267KTG5DT

not attested not anchored not stored refs pending

PSPACE-completeness of Bloxorz and of Games with 2-Buttons

Hans L. Bodlaender, Tom C. van der Zanden

arxiv:1411.5951 v1 · 2014-11-21 · cs.CC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TQUTKL2CTRYSJT3L6267KTG5DT}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:33:01.843446Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c29352f429c7124cf6bf6bdf54cdd1ccb137481ae0fb27ae77d384c981c815c

Aliases

arxiv: 1411.5951 · arxiv_version: 1411.5951v1 · doi: 10.48550/arxiv.1411.5951 · pith_short_12: TQUTKL2CTRYS · pith_short_16: TQUTKL2CTRYSJT3L · pith_short_8: TQUTKL2C

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/TQUTKL2CTRYSJT3L6267KTG5DT \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 9c29352f429c7124cf6bf6bdf54cdd1ccb137481ae0fb27ae77d384c981c815c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d22141b950fad255f83d0d54f6366fbe7f701fc5105c71ea66dd1bfd228e4572",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2014-11-21T16:46:40Z",
    "title_canon_sha256": "ce7d3ff914441678a40fc1d2f2016580c4c75072d35075ef3d1327880697f655"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.5951",
    "kind": "arxiv",
    "version": 1
  }
}