Pith Number

pith:TAUMQHE4

pith:2013:TAUMQHE476PAXA7P67KHC3J6HB

not attested not anchored not stored refs pending

An O(N) Direct Solver for Integral Equations on the Plane

Denis Zorin, Eduardo Corona, Per-Gunnar Martinsson

arxiv:1303.5466 v3 · 2013-03-21 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TAUMQHE476PAXA7P67KHC3J6HB}

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	2026-05-18T03:25:43.248082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9828c81c9cff9e0b83eff7d4716d3e385e4b02254a224eca2fde4575dd3f7750

Aliases

arxiv: 1303.5466 · arxiv_version: 1303.5466v3 · doi: 10.48550/arxiv.1303.5466 · pith_short_12: TAUMQHE476PA · pith_short_16: TAUMQHE476PAXA7P · pith_short_8: TAUMQHE4

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/TAUMQHE476PAXA7P67KHC3J6HB \
  | 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: 9828c81c9cff9e0b83eff7d4716d3e385e4b02254a224eca2fde4575dd3f7750

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0703e34887720d451b3da7fa63a639fc909d6c65461c9293bd7b9cd205608cc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-03-21T21:11:07Z",
    "title_canon_sha256": "74cc3e801dd27a85afcf8fa4fbd1c67403c21270c4cf0b8c223eb0ccd0819392"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.5466",
    "kind": "arxiv",
    "version": 3
  }
}