Pith Number

pith:PILGD53N

pith:2014:PILGD53NRMM7Q3Y3V6MP664EFQ

not attested not anchored not stored refs pending

Covering Folded Shapes

Andrew Winslow, Anna Lubiw, Erik D. Demaine, Greg Aloupis, Jack Snoeyink, Martin L. Demaine, Michael Hoffmann, Oswin Aichholzer, S\'andor P. Fekete

arxiv:1405.2378 v1 · 2014-05-10 · 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{PILGD53NRMM7Q3Y3V6MP664EFQ}

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	2026-05-18T02:52:05.649118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a1661f76d8b19f86f1baf98ff7b842c0d4a7704795be9af2ede7351cda49347

Aliases

arxiv: 1405.2378 · arxiv_version: 1405.2378v1 · doi: 10.48550/arxiv.1405.2378 · pith_short_12: PILGD53NRMM7 · pith_short_16: PILGD53NRMM7Q3Y3 · pith_short_8: PILGD53N

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/PILGD53NRMM7Q3Y3V6MP664EFQ \
  | 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: 7a1661f76d8b19f86f1baf98ff7b842c0d4a7704795be9af2ede7351cda49347

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83b1433feace5c011077947f3230b31d97d78220573bc3a2ea27dafeff044b44",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2014-05-10T02:22:26Z",
    "title_canon_sha256": "0b0bb1d3ff8ce9883eac8bfd0675198f5264b6b6418063cb6a911ced98bcba20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.2378",
    "kind": "arxiv",
    "version": 1
  }
}