Pith Number

pith:HE6I26PN

pith:2018:HE6I26PNRRPDKQ2GFUPJVYZTXP

not attested not anchored not stored refs pending

Quadrature Points via Heat Kernel Repulsion

Jianfeng Lu, Matthias Sachs, Stefan Steinerberger

arxiv:1804.02327 v2 · 2018-04-06 · 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{HE6I26PNRRPDKQ2GFUPJVYZTXP}

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	2026-05-17T23:49:43.927995Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

393c8d79ed8c5e3543462d1e9ae333bbffc53304dcd2bf09c1cf7e638fd6215f

Aliases

arxiv: 1804.02327 · arxiv_version: 1804.02327v2 · doi: 10.48550/arxiv.1804.02327 · pith_short_12: HE6I26PNRRPD · pith_short_16: HE6I26PNRRPDKQ2G · pith_short_8: HE6I26PN

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/HE6I26PNRRPDKQ2GFUPJVYZTXP \
  | 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: 393c8d79ed8c5e3543462d1e9ae333bbffc53304dcd2bf09c1cf7e638fd6215f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "287d46cc9b79726cdffae133657b9fe36c65cc2514c2b9fa626ded4e3b539c47",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-04-06T15:49:30Z",
    "title_canon_sha256": "83ca25058b10945644ea162e5e302ab760ee50db0679db300970893ae0c3acde"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.02327",
    "kind": "arxiv",
    "version": 2
  }
}