Pith Number

pith:EB6WEQFD

pith:2013:EB6WEQFDHI4WSUZM4R4PQDTY3S

not attested not anchored not stored refs pending

Distributed boundary tracking using alpha and Delaunay-Cech shapes

Hamid Krim, Harish Chintakunta

arxiv:1302.3982 v1 · 2013-02-16 · 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{EB6WEQFDHI4WSUZM4R4PQDTY3S}

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	2026-05-18T03:33:24.660774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

207d6240a33a3969532ce478f80e78dcbf6d82bafbe26b34de264826eea386d6

Aliases

arxiv: 1302.3982 · arxiv_version: 1302.3982v1 · doi: 10.48550/arxiv.1302.3982 · pith_short_12: EB6WEQFDHI4W · pith_short_16: EB6WEQFDHI4WSUZM · pith_short_8: EB6WEQFD

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/EB6WEQFDHI4WSUZM4R4PQDTY3S \
  | 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: 207d6240a33a3969532ce478f80e78dcbf6d82bafbe26b34de264826eea386d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3383c90aef82c6c1cde1eb83a81c30bc5c932a0dd709e1c66b4d6f4d6fa6f11c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2013-02-16T17:56:15Z",
    "title_canon_sha256": "01c0fe05a1f765d05abb94bc97041e9c3e3c54ad3b02a93a0345c35ab35b5d61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.3982",
    "kind": "arxiv",
    "version": 1
  }
}