Pith Number

pith:JJJJYZTN

pith:2011:JJJJYZTNOXRCD5X7WOA3OGVQOF

not attested not anchored not stored refs pending

Topological representations of matroid maps

Matthew T. Stamps

arxiv:1104.4152 v3 · 2011-04-21 · math.CO · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JJJJYZTNOXRCD5X7WOA3OGVQOF}

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	2026-05-18T02:22:01.656370Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a529c666d75e221f6ffb381b71ab071413d1298e703c8137dd8305cde845a0b

Aliases

arxiv: 1104.4152 · arxiv_version: 1104.4152v3 · doi: 10.48550/arxiv.1104.4152 · pith_short_12: JJJJYZTNOXRC · pith_short_16: JJJJYZTNOXRCD5X7 · pith_short_8: JJJJYZTN

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/JJJJYZTNOXRCD5X7WOA3OGVQOF \
  | 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: 4a529c666d75e221f6ffb381b71ab071413d1298e703c8137dd8305cde845a0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8bbadf574cbb4a667469eee802b41c2f35e33475e5e7093241bc0cf03e422503",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2011-04-21T01:29:07Z",
    "title_canon_sha256": "3b4cc61ef15ff66e104d807b8e66c53e7d405a7c00ca79c6edbf253e86624735"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.4152",
    "kind": "arxiv",
    "version": 3
  }
}