Pith Number

pith:D73UZVGK

pith:2010:D73UZVGKXHWKPXGM6JWY4KI3E3

not attested not anchored not stored refs pending

A note on some embedding problems for oriented graphs

Andrew Treglown

arxiv:1011.4476 v1 · 2010-11-19 · 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{D73UZVGKXHWKPXGM6JWY4KI3E3}

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	2026-05-18T04:35:14.070374Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ff74cd4cab9eca7dcccf26d8e291b26eb415848d107d5ff1ed7705de53af6cc

Aliases

arxiv: 1011.4476 · arxiv_version: 1011.4476v1 · doi: 10.48550/arxiv.1011.4476 · pith_short_12: D73UZVGKXHWK · pith_short_16: D73UZVGKXHWKPXGM · pith_short_8: D73UZVGK

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/D73UZVGKXHWKPXGM6JWY4KI3E3 \
  | 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: 1ff74cd4cab9eca7dcccf26d8e291b26eb415848d107d5ff1ed7705de53af6cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "318226fa59598e0de7eb7aea8cbf030609a756564ef4d68a80e4269fb8943d61",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2010-11-19T17:20:39Z",
    "title_canon_sha256": "d0d4e5a7282355045322301449195e3208953a75d5e8978ba2f948d19c7484ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.4476",
    "kind": "arxiv",
    "version": 1
  }
}