Pith Number

pith:Q2BBQAAE

pith:2017:Q2BBQAAE4DRVV4CKFUPF7DRYPT

not attested not anchored not stored refs pending

How to navigate through obstacles?

Eduard Eiben, Iyad Kanj

arxiv:1712.04043 v1 · 2017-12-11 · cs.CG · cs.CC · cs.DM · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q2BBQAAE4DRVV4CKFUPF7DRYPT}

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	2026-05-18T00:28:09.422671Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8682180004e0e35af04a2d1e5f8e387cc8a850e83cddfae3cfb8cbc6fea5f316

Aliases

arxiv: 1712.04043 · arxiv_version: 1712.04043v1 · doi: 10.48550/arxiv.1712.04043 · pith_short_12: Q2BBQAAE4DRV · pith_short_16: Q2BBQAAE4DRVV4CK · pith_short_8: Q2BBQAAE

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/Q2BBQAAE4DRVV4CKFUPF7DRYPT \
  | 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: 8682180004e0e35af04a2d1e5f8e387cc8a850e83cddfae3cfb8cbc6fea5f316

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c7941b186ea6c269fcb732bdeef52478742a185ad4d05f6a5a154613f00cb55",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DM",
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2017-12-11T21:46:36Z",
    "title_canon_sha256": "b982d7b1af8109031535999b1806ae00e4aef6d2556473e7a6bddc301e52806a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.04043",
    "kind": "arxiv",
    "version": 1
  }
}