Pith Number

pith:YI66QA4H

pith:2023:YI66QA4HRNC5HEO3MTPXG33RSA

not attested not anchored not stored refs pending

Graph morphisms and exhaustion of curve graphs of low-genus surfaces

Jes\'us Hern\'andez Hern\'andez

arxiv:2307.15161 v1 · 2023-07-27 · math.GT · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YI66QA4HRNC5HEO3MTPXG33RSA}

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	2026-05-27T14:06:34.978960Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c23de803878b45d391db64df736f71900644e96a940191eb42ddd70aec502c6f

Aliases

arxiv: 2307.15161 · arxiv_version: 2307.15161v1 · doi: 10.48550/arxiv.2307.15161 · pith_short_12: YI66QA4HRNC5 · pith_short_16: YI66QA4HRNC5HEO3 · pith_short_8: YI66QA4H

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/YI66QA4HRNC5HEO3MTPXG33RSA \
  | 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: c23de803878b45d391db64df736f71900644e96a940191eb42ddd70aec502c6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04490f1fa46dceaa2724c3637df59e5495699d34ecd7cd56d8762fec4d1848aa",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2023-07-27T19:32:15Z",
    "title_canon_sha256": "23c2528424be0f5a903c6cb8f70901ad15189688a14404242e6ed1647fe15067"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.15161",
    "kind": "arxiv",
    "version": 1
  }
}