Pith Number

pith:JYEYFURX

pith:2011:JYEYFURXALINUHEJ4HFCRB56V4

not attested not anchored not stored refs pending

Inapproximability of Orthogonal Compaction

David Eppstein, Joseph A. Simons, Michael J. Bannister

arxiv:1108.4705 v3 · 2011-08-23 · 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{JYEYFURXALINUHEJ4HFCRB56V4}

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	2026-05-18T01:36:51.965059Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e0982d23702d0da1c89e1ca2887beaf05bbc121a33fcebb62c5fc974fd2d17f

Aliases

arxiv: 1108.4705 · arxiv_version: 1108.4705v3 · doi: 10.48550/arxiv.1108.4705 · pith_short_12: JYEYFURXALIN · pith_short_16: JYEYFURXALINUHEJ · pith_short_8: JYEYFURX

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/JYEYFURXALINUHEJ4HFCRB56V4 \
  | 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: 4e0982d23702d0da1c89e1ca2887beaf05bbc121a33fcebb62c5fc974fd2d17f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd6762c35c8857b8b5f98726d787e1586a81521d724cc896f01a28429d7af0fa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2011-08-23T21:37:28Z",
    "title_canon_sha256": "bbadbd0090775201be61227dcbbe12ce324802f5126aeb9f670620073e659339"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.4705",
    "kind": "arxiv",
    "version": 3
  }
}