Pith Number

pith:UHAT6ZPU

pith:2017:UHAT6ZPUFFIPYU6557OHH7NC4N

not attested not anchored not stored refs pending

Frames, $A$-paths and the Erd\H{o}s-P\'osa property

Felix Joos, Henning Bruhn, Matthias Heinlein

arxiv:1707.02918 v3 · 2017-07-10 · 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{UHAT6ZPUFFIPYU6557OHH7NC4N}

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	2026-05-18T00:25:18.061871Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1c13f65f42950fc53ddefdc73fda2e379cbd4382ff36df7779dcdd8bf681b44

Aliases

arxiv: 1707.02918 · arxiv_version: 1707.02918v3 · doi: 10.48550/arxiv.1707.02918 · pith_short_12: UHAT6ZPUFFIP · pith_short_16: UHAT6ZPUFFIPYU65 · pith_short_8: UHAT6ZPU

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/UHAT6ZPUFFIPYU6557OHH7NC4N \
  | 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: a1c13f65f42950fc53ddefdc73fda2e379cbd4382ff36df7779dcdd8bf681b44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c27293ae5597874777af084cff69a174beb0835cee5c85223c271ab56598de46",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-07-10T15:54:05Z",
    "title_canon_sha256": "a984283d16ce7d28d2df65598886e3541efef7f8c54f1d0e2e2efa58f2b98296"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.02918",
    "kind": "arxiv",
    "version": 3
  }
}