Pith Number

pith:6TJ2UZAR

pith:2019:6TJ2UZARONATKJ5DDR54R6IYQB

not attested not anchored not stored refs pending

Polyurethane Toggles

Colin Defant

arxiv:1904.06283 v2 · 2019-04-09 · 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{6TJ2UZARONATKJ5DDR54R6IYQB}

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

Supertrees

Receipt and verification

First computed	2026-07-05T01:38:14.659190Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4d3aa641173413527a31c7bc8f91880565e5f6e14ff48a70f97979037296ce5

Aliases

arxiv: 1904.06283 · arxiv_version: 1904.06283v2 · doi: 10.48550/arxiv.1904.06283 · pith_short_12: 6TJ2UZARONAT · pith_short_16: 6TJ2UZARONATKJ5D · pith_short_8: 6TJ2UZAR

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/6TJ2UZARONATKJ5DDR54R6IYQB \
  | 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: f4d3aa641173413527a31c7bc8f91880565e5f6e14ff48a70f97979037296ce5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4c75cc6ee3886c6253f248083df254ef51ddc24bdfb3a29a5939220254ad794",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-04-09T17:41:04Z",
    "title_canon_sha256": "78679375bc1174ce5dc295f6ec3d6dad4b883bfb20363ea3d287ac1ef18007ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.06283",
    "kind": "arxiv",
    "version": 2
  }
}