Pith Number

pith:7Q3YFSXI

pith:2012:7Q3YFSXI3LOPN7GS5YMAG6RSQU

not attested not anchored not stored refs pending

dftatom: A robust and general Schr\"odinger and Dirac solver for atomic structure calculations

Ji\v{r}\'i Vack\'a\v{r}, John E. Pask, Ond\v{r}ej \v{C}ert\'ik

arxiv:1209.1752 v2 · 2012-09-08 · physics.atom-ph · physics.comp-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{7Q3YFSXI3LOPN7GS5YMAG6RSQU}

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	2026-05-18T01:54:38.199984Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc3782cae8dadcf6fcd2ee18037a32852beb4fe23f51ea8cae0d0994092f8fa5

Aliases

arxiv: 1209.1752 · arxiv_version: 1209.1752v2 · doi: 10.48550/arxiv.1209.1752 · pith_short_12: 7Q3YFSXI3LOP · pith_short_16: 7Q3YFSXI3LOPN7GS · pith_short_8: 7Q3YFSXI

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/7Q3YFSXI3LOPN7GS5YMAG6RSQU \
  | 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: fc3782cae8dadcf6fcd2ee18037a32852beb4fe23f51ea8cae0d0994092f8fa5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0b9b1809413948cbeae6defefddb6015d9b4b8a37eadae70933ad4e5b8f303c",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2012-09-08T21:32:01Z",
    "title_canon_sha256": "11d60362ce2b9ab8105d03ed757f8e0a7886361bdcee42e06d6ef632659a9265"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.1752",
    "kind": "arxiv",
    "version": 2
  }
}