Pith Number

pith:B2MUFRMK

pith:2014:B2MUFRMKXAJT7ASRVMK6QSEBMC

not attested not anchored not stored refs pending

Bounded, minimal, and short representations of unit interval and unit circular-arc graphs

Francisco J. Soulignac

arxiv:1408.3443 v2 · 2014-08-14 · 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{B2MUFRMKXAJT7ASRVMK6QSEBMC}

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	2026-05-18T02:40:46.976328Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e9942c58ab8133f8251ab15e8488160866e7ff42163c6c492a1e61c3a39b9f9

Aliases

arxiv: 1408.3443 · arxiv_version: 1408.3443v2 · doi: 10.48550/arxiv.1408.3443 · pith_short_12: B2MUFRMKXAJT · pith_short_16: B2MUFRMKXAJT7ASR · pith_short_8: B2MUFRMK

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/B2MUFRMKXAJT7ASRVMK6QSEBMC \
  | 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: 0e9942c58ab8133f8251ab15e8488160866e7ff42163c6c492a1e61c3a39b9f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cac11161c5b88972384388751537a13141b20e1b09649e7882c266920b746827",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2014-08-14T22:49:43Z",
    "title_canon_sha256": "c064cdf9372e9df609aac3b48811147aac45546546cdc5b05b89f7a59d524834"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.3443",
    "kind": "arxiv",
    "version": 2
  }
}