Pith Number

pith:UCTSTUA6

pith:2010:UCTSTUA6EWS6FPO5AN4QHAF7SX

not attested not anchored not stored refs pending

Embedding a Forest in a Graph

Malik Magdon-Ismail, Mark Goldberg

arxiv:1011.3882 v1 · 2010-11-17 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UCTSTUA6EWS6FPO5AN4QHAF7SX}

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	2026-05-18T04:35:47.388608Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0a729d01e25a5e2bddd03790380bf95ebfa9d2365786a6e29e979478b4c8dc6

Aliases

arxiv: 1011.3882 · arxiv_version: 1011.3882v1 · doi: 10.48550/arxiv.1011.3882 · pith_short_12: UCTSTUA6EWS6 · pith_short_16: UCTSTUA6EWS6FPO5 · pith_short_8: UCTSTUA6

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/UCTSTUA6EWS6FPO5AN4QHAF7SX \
  | 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: a0a729d01e25a5e2bddd03790380bf95ebfa9d2365786a6e29e979478b4c8dc6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5195ddb33aa4060cff7edcd5e6f07d0049ddefce42787d1819f4004dc574a564",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2010-11-17T04:15:36Z",
    "title_canon_sha256": "893d6e81645aa9bdbdb676b42c645b2e81d7b272ccd938bc0dcca384604be65c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.3882",
    "kind": "arxiv",
    "version": 1
  }
}