Pith Number

pith:7A2VHNIS

pith:2011:7A2VHNIS54ANBLGMF5VXPENACQ

not attested not anchored not stored refs pending

Computational Hardness of Enumerating Satisfying Spin-Assignments in Triangulations

Andrea Jim\'enez, Marcos Kiwi

arxiv:1107.3767 v1 · 2011-07-19 · 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{7A2VHNIS54ANBLGMF5VXPENACQ}

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	2026-05-18T04:17:16.024037Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f83553b512ef00d0accc2f6b7791a0143a9fb0e1e5f29cae2ead5cb8d6752e0b

Aliases

arxiv: 1107.3767 · arxiv_version: 1107.3767v1 · doi: 10.48550/arxiv.1107.3767 · pith_short_12: 7A2VHNIS54AN · pith_short_16: 7A2VHNIS54ANBLGM · pith_short_8: 7A2VHNIS

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/7A2VHNIS54ANBLGMF5VXPENACQ \
  | 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: f83553b512ef00d0accc2f6b7791a0143a9fb0e1e5f29cae2ead5cb8d6752e0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb69d77a8c6fb7f53ff710c8e826f96da3957c37b77eab849be99c0f1e0af652",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2011-07-19T16:34:07Z",
    "title_canon_sha256": "b47b3b938acaef58198b83898d63cf5fff6179e31af5f1fde3939aeee778b1d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.3767",
    "kind": "arxiv",
    "version": 1
  }
}