Pith Number

pith:PS4M62U3

pith:2023:PS4M62U342CL3YF66KCDR4XMIM

not attested not anchored not stored refs pending

A Note on Extension Properties and Representations of Matroids

Carles Padr\'o, Michael Bamiloshin, Oriol Farr\`as

arxiv:2306.15085 v3 · 2023-06-26 · 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{PS4M62U342CL3YF66KCDR4XMIM}

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.

Cited by

1 paper in Pith

On the recognition problem for limits of entropy functions

Receipt and verification

First computed	2026-07-05T10:17:45.113964Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cb8cf6a9be684bde0bef28438f2ec4311aeeb5b65e853c06e1b65dc0715709c

Aliases

arxiv: 2306.15085 · arxiv_version: 2306.15085v3 · doi: 10.48550/arxiv.2306.15085 · pith_short_12: PS4M62U342CL · pith_short_16: PS4M62U342CL3YF6 · pith_short_8: PS4M62U3

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/PS4M62U342CL3YF66KCDR4XMIM \
  | 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: 7cb8cf6a9be684bde0bef28438f2ec4311aeeb5b65e853c06e1b65dc0715709c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3530dde8b02f9ace5c7357afeda38d2e2c39a30cfeb2918b9c49758d5719e5d1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2023-06-26T22:04:48Z",
    "title_canon_sha256": "4e60d4384ddc00d1feff2bfbd1e7bee9eebf59be99598d28aa2c7a552ea5334c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2306.15085",
    "kind": "arxiv",
    "version": 3
  }
}