Pith Number

pith:R3ZXS6NX

pith:2019:R3ZXS6NXFHBWQGMSKSXJHFU66A

not attested not anchored not stored refs pending

Functorial Approach to Graph and Hypergraph Theory

Martin Schmidt

arxiv:1907.02574 v1 · 2019-07-04 · math.CO · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R3ZXS6NXFHBWQGMSKSXJHFU66A}

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	2026-05-17T23:41:23.912899Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ef37979b729c368199254ae93969ef012fcd138dc365bf9f43292152cf9bee1

Aliases

arxiv: 1907.02574 · arxiv_version: 1907.02574v1 · doi: 10.48550/arxiv.1907.02574 · pith_short_12: R3ZXS6NXFHBW · pith_short_16: R3ZXS6NXFHBWQGMS · pith_short_8: R3ZXS6NX

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/R3ZXS6NXFHBWQGMSKSXJHFU66A \
  | 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: 8ef37979b729c368199254ae93969ef012fcd138dc365bf9f43292152cf9bee1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8539cce671c654b0c22997164b6bf2e2714d8e8656a13af24f8309c6f190541a",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-07-04T20:14:55Z",
    "title_canon_sha256": "1c9c60a49144346545eba9097306fecb287ee070893c1bc46f1659cc751a6772"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.02574",
    "kind": "arxiv",
    "version": 1
  }
}