Pith Number

pith:A7ZFOJAH

pith:2014:A7ZFOJAH5YWQWF33ALY4AVKUZN

not attested not anchored not stored refs pending

Counting friezes in type D_n

Bruce Fontaine, Pierre-Guy Plamondon

arxiv:1409.3698 v3 · 2014-09-12 · 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{A7ZFOJAH5YWQWF33ALY4AVKUZN}

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	2026-05-18T01:01:52.538922Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07f2572407ee2d0b177b02f1c05554cb7491829f747f666b3de277bcc72bd005

Aliases

arxiv: 1409.3698 · arxiv_version: 1409.3698v3 · doi: 10.48550/arxiv.1409.3698 · pith_short_12: A7ZFOJAH5YWQ · pith_short_16: A7ZFOJAH5YWQWF33 · pith_short_8: A7ZFOJAH

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/A7ZFOJAH5YWQWF33ALY4AVKUZN \
  | 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: 07f2572407ee2d0b177b02f1c05554cb7491829f747f666b3de277bcc72bd005

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ac7e5732b2c4d945f1c29af22dd89e91970cd011bfed3fb44379be420d63097",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-09-12T11:08:09Z",
    "title_canon_sha256": "93db6b4c529a801115e41ecc6cda140990473a830092b304e709ed2d466017e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.3698",
    "kind": "arxiv",
    "version": 3
  }
}