Pith Number

pith:PIRVLYFE

pith:2018:PIRVLYFE73DYG7JCV6G67DJTZY

not attested not anchored not stored refs pending

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Erik D. Demaine, Hiro Ito, Jayson Lynch, Kai Xiao, Mikhail Rudoy, Stefan Langerman

arxiv:1808.07540 v2 · 2018-08-22 · cs.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PIRVLYFE73DYG7JCV6G67DJTZY}

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	2026-05-17T23:52:52.409325Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a2355e0a4fec7837d22af8def8d33ce08ac481d2ea23e4b279226e885bf3611

Aliases

arxiv: 1808.07540 · arxiv_version: 1808.07540v2 · doi: 10.48550/arxiv.1808.07540 · pith_short_12: PIRVLYFE73DY · pith_short_16: PIRVLYFE73DYG7JC · pith_short_8: PIRVLYFE

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/PIRVLYFE73DYG7JCV6G67DJTZY \
  | 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: 7a2355e0a4fec7837d22af8def8d33ce08ac481d2ea23e4b279226e885bf3611

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "494661f7cbc95737848986d451a0d0718074865453f700f2912a6178fb2b029e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GT",
    "submitted_at": "2018-08-22T19:46:42Z",
    "title_canon_sha256": "00f0018fffb10341e6d9252aabe00fa8e21f12076e97a96719b34b3017a9974b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.07540",
    "kind": "arxiv",
    "version": 2
  }
}