Pith Number

pith:FWR4HYQW

pith:2015:FWR4HYQWLJ3XQXDKPTED2XOJQP

not attested not anchored not stored refs pending

A panorama of specification-like properties and their consequences

Dominik Kwietniak, Martha {\L}\k{a}cka, Piotr Oprocha

arxiv:1503.07355 v2 · 2015-03-25 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FWR4HYQWLJ3XQXDKPTED2XOJQP}

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

The Specification Property on the Lelek Fan

Receipt and verification

First computed	2026-05-18T02:03:33.474238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2da3c3e2165a77785c6a7cc83d5dc983c1992b930f0c03d3f754bd7ca5f73a6c

Aliases

arxiv: 1503.07355 · arxiv_version: 1503.07355v2 · doi: 10.48550/arxiv.1503.07355 · pith_short_12: FWR4HYQWLJ3X · pith_short_16: FWR4HYQWLJ3XQXDK · pith_short_8: FWR4HYQW

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/FWR4HYQWLJ3XQXDKPTED2XOJQP \
  | 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: 2da3c3e2165a77785c6a7cc83d5dc983c1992b930f0c03d3f754bd7ca5f73a6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9ffc7f1a72c8f2a94855df68a0f93093ca8d9c018885e63e71762c14efa7fc3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2015-03-25T12:21:43Z",
    "title_canon_sha256": "ad64fcec299e9126ae79f237bff52722fb9fe3cf4a2c9561095918d40f78667d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.07355",
    "kind": "arxiv",
    "version": 2
  }
}