Pith Number

pith:YQACI5IA

pith:2015:YQACI5IA4MGTLOSVXHUSZMUZAF

not attested not anchored not stored refs pending

Relaxed Disk Packing

Herbert Edelsbrunner, Mabel Iglesias-Ham, Vitaliy Kurlin

arxiv:1505.03402 v1 · 2015-05-13 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YQACI5IA4MGTLOSVXHUSZMUZAF}

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	2026-05-18T02:12:09.250066Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c400247500e30d35ba55b9e92cb299016e01b1664314a4bfa9ffda419382106e

Aliases

arxiv: 1505.03402 · arxiv_version: 1505.03402v1 · doi: 10.48550/arxiv.1505.03402 · pith_short_12: YQACI5IA4MGT · pith_short_16: YQACI5IA4MGTLOSV · pith_short_8: YQACI5IA

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/YQACI5IA4MGTLOSVXHUSZMUZAF \
  | 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: c400247500e30d35ba55b9e92cb299016e01b1664314a4bfa9ffda419382106e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c52ade90df0a8c6eeab42acfac18d7aaa30bb127d1eaefe02cb6986ce7851625",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2015-05-13T14:29:51Z",
    "title_canon_sha256": "80aa675fcbf4c9963c40903956a703399a2397b2afbf48c2f097abffa6aba612"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.03402",
    "kind": "arxiv",
    "version": 1
  }
}