Pith Number

pith:5CJZKKG2

pith:2023:5CJZKKG2QQQVYJ6LESUJA43NAT

not attested not anchored not stored refs pending

Encoding and Enumerating Acyclic Orientations of Graphs

Francisco Reyes, Jessica Khera, Walter Carballosa

arxiv:2303.09021 v2 · 2023-03-16 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5CJZKKG2QQQVYJ6LESUJA43NAT}

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	2026-07-05T10:59:22.224739Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8939528da84215c27cb24a890736d04eb0b167bac32720f9064ba7c1c5071c6

Aliases

arxiv: 2303.09021 · arxiv_version: 2303.09021v2 · doi: 10.48550/arxiv.2303.09021 · pith_short_12: 5CJZKKG2QQQV · pith_short_16: 5CJZKKG2QQQVYJ6L · pith_short_8: 5CJZKKG2

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/5CJZKKG2QQQVYJ6LESUJA43NAT \
  | 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: e8939528da84215c27cb24a890736d04eb0b167bac32720f9064ba7c1c5071c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a36825ae28dacad8963f9d4c4049c86dcd69a3a5b8eabfec77542a5f0d502a8",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2023-03-16T01:24:27Z",
    "title_canon_sha256": "663271169efd1c2097070ebdec0b4be0199bc950771888d0860be4585319b5fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.09021",
    "kind": "arxiv",
    "version": 2
  }
}