Pith Number

pith:4FCD3443

pith:2014:4FCD34435WVMI6WXYZPHUSSIOJ

not attested not anchored not stored refs pending

Zig-Zag Numberlink is NP-Complete

Aaron Adcock, Blair D. Sullivan, Erik D. Demaine, Felix Reidl, Fernando S\'anchez Villaamil, Martin L. Demaine, Michael P. O'Brien

arxiv:1410.5845 v1 · 2014-10-21 · 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{4FCD34435WVMI6WXYZPHUSSIOJ}

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	2026-05-18T02:39:33.106891Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1443df39bedaac47ad7c65e7a4a4872559deb93abca90bad2ee4926457c8cf2

Aliases

arxiv: 1410.5845 · arxiv_version: 1410.5845v1 · doi: 10.48550/arxiv.1410.5845 · pith_short_12: 4FCD34435WVM · pith_short_16: 4FCD34435WVMI6WX · pith_short_8: 4FCD3443

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/4FCD34435WVMI6WXYZPHUSSIOJ \
  | 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: e1443df39bedaac47ad7c65e7a4a4872559deb93abca90bad2ee4926457c8cf2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91dc5b56f2e2662a41deda409fdbc2069037fa6d3b72fb65f107e17a0cdeb10b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2014-10-21T20:27:20Z",
    "title_canon_sha256": "c9a72d326521605a653955dfcca6693f1832fda3c722c2c0ca1a4eb2368bc7c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.5845",
    "kind": "arxiv",
    "version": 1
  }
}