Pith Number

pith:7UID3AQS

pith:2018:7UID3AQSLYDOFU6KUI2CYT6HEM

not attested not anchored not stored refs pending

DiscreteZOO: a Fingerprint Database of Discrete Objects

Jano\v{s} Vidali, Katja Ber\v{c}i\v{c}

arxiv:1812.05921 v1 · 2018-12-13 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7UID3AQSLYDOFU6KUI2CYT6HEM}

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	2026-05-17T23:58:17.799557Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd103d82125e06e2d3caa2342c4fc7233c87e487e549092c29905ec002e9a378

Aliases

arxiv: 1812.05921 · arxiv_version: 1812.05921v1 · doi: 10.48550/arxiv.1812.05921 · pith_short_12: 7UID3AQSLYDO · pith_short_16: 7UID3AQSLYDOFU6K · pith_short_8: 7UID3AQS

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/7UID3AQSLYDOFU6KUI2CYT6HEM \
  | 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: fd103d82125e06e2d3caa2342c4fc7233c87e487e549092c29905ec002e9a378

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f88621027871b73d22e32c4eb57e568c2765bf609199f5ceb8114fe59805bb3",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-12-13T16:34:31Z",
    "title_canon_sha256": "afe8a82364e19441b0a7ff1e4ac6df1aae7be6da87073f19944e274d395e0d01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.05921",
    "kind": "arxiv",
    "version": 1
  }
}