Pith Number

pith:HG4VKPST

pith:2014:HG4VKPSTNUIPH46DENBG2G7KO7

not attested not anchored not stored refs pending

Identifying codes and searching with balls in graphs

Alexey Pokrovskiy, Balazs Patkos, Mate Vizer, Mohit Kumbhat, Younjin Kim, Zoltan Lorant Nagy

arxiv:1405.7508 v2 · 2014-05-29 · 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{HG4VKPSTNUIPH46DENBG2G7KO7}

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	2026-05-18T02:50:42.125828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39b9553e536d10f3f3c323426d1bea77ef033beda3df5a41f3b2c6e9b42b1c96

Aliases

arxiv: 1405.7508 · arxiv_version: 1405.7508v2 · doi: 10.48550/arxiv.1405.7508 · pith_short_12: HG4VKPSTNUIP · pith_short_16: HG4VKPSTNUIPH46D · pith_short_8: HG4VKPST

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/HG4VKPSTNUIPH46DENBG2G7KO7 \
  | 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: 39b9553e536d10f3f3c323426d1bea77ef033beda3df5a41f3b2c6e9b42b1c96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "123f4e3f62f6a65355215882d35a5d0220fbe379e6632e9adc3e0aee994713f6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-05-29T09:40:04Z",
    "title_canon_sha256": "25fc8dbfd568ccd6c17929cd90e499ba0dbf2822e3c612ba941b2e62109651ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.7508",
    "kind": "arxiv",
    "version": 2
  }
}