Pith Number

pith:W57NAZXV

pith:1995:W57NAZXVW4RUH6TRE6FYOY4QKE

not attested not anchored not stored refs pending

"The numerical accuracy of truncated Ewald sums for periodic systems with long-range Coulomb interactions"

Gerhard Hummer (Los Alamos National Laboratory, Los Alamos, NM 87545)

arxiv:chem-ph/9502004 v1 · 1995-02-10 · chem-ph · physics.chem-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W57NAZXVW4RUH6TRE6FYOY4QKE}

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	2026-05-18T01:07:24.385865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b77ed066f5b72343fa71278b876390513885f9a19828c46f4581e9a19e80ffe4

Aliases

arxiv: chem-ph/9502004 · arxiv_version: chem-ph/9502004v1 · doi: 10.48550/arxiv.chem-ph/9502004 · pith_short_12: W57NAZXVW4RU · pith_short_16: W57NAZXVW4RUH6TR · pith_short_8: W57NAZXV

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/W57NAZXVW4RUH6TRE6FYOY4QKE \
  | 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: b77ed066f5b72343fa71278b876390513885f9a19828c46f4581e9a19e80ffe4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9df80360c77f6e7dd6c2a3f2f68c7ea01653a49bf8dc73f9b4fe6bac9315b3a",
    "cross_cats_sorted": [
      "physics.chem-ph"
    ],
    "license": "",
    "primary_cat": "chem-ph",
    "submitted_at": "1995-02-10T23:25:43Z",
    "title_canon_sha256": "bcb92575bee796847771f13382a640cde890f80b8ff5120f9f34d3319bc965d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "chem-ph/9502004",
    "kind": "arxiv",
    "version": 1
  }
}