Pith Number

pith:UBQEASBC

pith:2014:UBQEASBCCUVG2H6QE57HN7ME63

not attested not anchored not stored refs pending

Dimers and Dominoes

James Propp

arxiv:1405.2615 v1 · 2014-05-12 · 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{UBQEASBCCUVG2H6QE57HN7ME63}

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	2026-05-18T02:52:05.115119Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a060404822152a6d1fd0277e76fd84f6e6b221333d7ec79c81a1a25393891b81

Aliases

arxiv: 1405.2615 · arxiv_version: 1405.2615v1 · doi: 10.48550/arxiv.1405.2615 · pith_short_12: UBQEASBCCUVG · pith_short_16: UBQEASBCCUVG2H6Q · pith_short_8: UBQEASBC

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/UBQEASBCCUVG2H6QE57HN7ME63 \
  | 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: a060404822152a6d1fd0277e76fd84f6e6b221333d7ec79c81a1a25393891b81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "181afc42cbf7ed60e89effd7284d36e02a4a170d8538c0c551a020f7aa236b5b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-05-12T02:13:12Z",
    "title_canon_sha256": "5a85989e96448f592913e2debb267652143f6df16ec9253feae019461d2e3160"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.2615",
    "kind": "arxiv",
    "version": 1
  }
}