Pith Number

pith:LOBM4QNM

pith:2018:LOBM4QNMLW5COZHVE5OJBRGWHX

not attested not anchored not stored refs pending

Sparips

Bernhard Brehm, Hanne Hardering

arxiv:1807.09982 v1 · 2018-07-26 · 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{LOBM4QNMLW5COZHVE5OJBRGWHX}

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	2026-05-18T00:09:45.831477Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b82ce41ac5dba2764f5275c90c4d63dfbb406508b4d93ad669dd0640748c1a3

Aliases

arxiv: 1807.09982 · arxiv_version: 1807.09982v1 · doi: 10.48550/arxiv.1807.09982 · pith_short_12: LOBM4QNMLW5C · pith_short_16: LOBM4QNMLW5COZHV · pith_short_8: LOBM4QNM

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/LOBM4QNMLW5COZHVE5OJBRGWHX \
  | 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: 5b82ce41ac5dba2764f5275c90c4d63dfbb406508b4d93ad669dd0640748c1a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6835b8d293a08d29ea563348c58402b0d0f2abebe323ea1cdac4a82dbd6d55a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2018-07-26T07:17:56Z",
    "title_canon_sha256": "ec7481f1a9f81a3d0733e5455a249b22403902fe6489a341fb123b21dafecca9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.09982",
    "kind": "arxiv",
    "version": 1
  }
}