Pith Number

pith:TIHCOEGL

pith:2013:TIHCOEGLLWBHOBWR5U37VHHRJN

not attested not anchored not stored refs pending

Making Laplacians commute

Klaus Glashoff, Michael M. Bronstein, Terry A. Loring

arxiv:1307.6549 v1 · 2013-07-19 · cs.CV · cs.GR · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TIHCOEGLLWBHOBWR5U37VHHRJN}

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	2026-05-18T03:17:36.163253Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a0e2710cb5d827706d1ed37fa9cf14b49cb753cb7ed1d1e1a17cfff026c344c

Aliases

arxiv: 1307.6549 · arxiv_version: 1307.6549v1 · doi: 10.48550/arxiv.1307.6549 · pith_short_12: TIHCOEGLLWBH · pith_short_16: TIHCOEGLLWBHOBWR · pith_short_8: TIHCOEGL

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/TIHCOEGLLWBHOBWR5U37VHHRJN \
  | 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: 9a0e2710cb5d827706d1ed37fa9cf14b49cb753cb7ed1d1e1a17cfff026c344c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f41e6a7dc4e5f8e22e51206415d84cd93a96a0bc2abc868864858062235e199",
    "cross_cats_sorted": [
      "cs.GR",
      "math.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-07-19T10:57:31Z",
    "title_canon_sha256": "1a4cfe3bf5f4669b9afaa5ad48c80df3828792ba14222c1b68f2f5285fc4be0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.6549",
    "kind": "arxiv",
    "version": 1
  }
}