Pith Number

pith:VSZL7M5U

pith:2019:VSZL7M5UXA75SCPYVKIFQWOWBX

not attested not anchored not stored refs pending

Truncated Boolean Representable Simplicial Complexes

John Rhodes, Pedro Silva, Stuart W. Margolis

arxiv:1904.03843 v1 · 2019-04-08 · 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{VSZL7M5UXA75SCPYVKIFQWOWBX}

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	2026-05-17T23:49:07.966856Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

acb2bfb3b4b83fd909f8aa905859d60de301a666841e688b65b552c95eb8097b

Aliases

arxiv: 1904.03843 · arxiv_version: 1904.03843v1 · doi: 10.48550/arxiv.1904.03843 · pith_short_12: VSZL7M5UXA75 · pith_short_16: VSZL7M5UXA75SCPY · pith_short_8: VSZL7M5U

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/VSZL7M5UXA75SCPYVKIFQWOWBX \
  | 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: acb2bfb3b4b83fd909f8aa905859d60de301a666841e688b65b552c95eb8097b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31a97c2c746c1346f6e4b82fe5416b84e05cb48a98b72b87adf86e54d9c1fab3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-04-08T05:12:43Z",
    "title_canon_sha256": "17c8f6d1cca54802669de2d12d39e98cdebab24b54e1eabcc9f52c720c90a9e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.03843",
    "kind": "arxiv",
    "version": 1
  }
}