Pith Number

pith:7AXLLDYJ

pith:2013:7AXLLDYJ47GS47GR52OCAJJ34E

not attested not anchored not stored refs pending

Cutting corners cheaply, or how to remove Steiner points

Huy L. Nguyen, Lior Kamma, Robert Krauthgamer

arxiv:1304.1449 v2 · 2013-04-04 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7AXLLDYJ47GS47GR52OCAJJ34E}

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	2026-05-18T01:35:01.254039Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f82eb58f09e7cd2e7cd1ee9c20253be13721d067130f9bd049f1bbc84799165f

Aliases

arxiv: 1304.1449 · arxiv_version: 1304.1449v2 · doi: 10.48550/arxiv.1304.1449 · pith_short_12: 7AXLLDYJ47GS · pith_short_16: 7AXLLDYJ47GS47GR · pith_short_8: 7AXLLDYJ

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/7AXLLDYJ47GS47GR52OCAJJ34E \
  | 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: f82eb58f09e7cd2e7cd1ee9c20253be13721d067130f9bd049f1bbc84799165f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55ec0667320ecaed6ffce33950682030719cb591b36f28db9f34e8777f1573bb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-04-04T17:55:24Z",
    "title_canon_sha256": "91ab96e851f686d9f298b494ec824c782c660a938dae56b81d9768f5fc097bf3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1449",
    "kind": "arxiv",
    "version": 2
  }
}