Pith Number

pith:EJGCW6L3

pith:2013:EJGCW6L3NB35Q5NAT7W4UHYC3G

not attested not anchored not stored refs pending

Incremental Computation of Pseudo-Inverse of Laplacian: Theory and Applications

Daniel Boley, Gyan Ranjan, Zhi-Li Zhang

arxiv:1304.2300 v1 · 2013-04-08 · cs.DM · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EJGCW6L3NB35Q5NAT7W4UHYC3G}

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	2026-05-18T03:28:43.490189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

224c2b797b6877d875a09fedca1f02d9a3dc723054655fe2458c8eb493ea0d81

Aliases

arxiv: 1304.2300 · arxiv_version: 1304.2300v1 · doi: 10.48550/arxiv.1304.2300 · pith_short_12: EJGCW6L3NB35 · pith_short_16: EJGCW6L3NB35Q5NA · pith_short_8: EJGCW6L3

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/EJGCW6L3NB35Q5NAT7W4UHYC3G \
  | 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: 224c2b797b6877d875a09fedca1f02d9a3dc723054655fe2458c8eb493ea0d81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5dadff84c52bb5e1e0726a97209afedc825cdf007ac34b77e3890a3a8e02479a",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2013-04-08T18:31:56Z",
    "title_canon_sha256": "2d62b8f99948ad0f00182fea467fb455d1384c8bedd85adf207f4113ef618174"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.2300",
    "kind": "arxiv",
    "version": 1
  }
}