Pith Number

pith:ZRLMT6KG

pith:2015:ZRLMT6KG5HXQNPM6XIGNPH2BWZ

not attested not anchored not stored refs pending

Parameterless stopping criteria for recursive density matrix expansions

Anastasia Kruchinina, Elias Rudberg, Emanuel H. Rubensson

arxiv:1507.02087 v3 · 2015-07-08 · physics.comp-ph · cond-mat.mtrl-sci · math.NA · 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{ZRLMT6KG5HXQNPM6XIGNPH2BWZ}

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	2026-05-18T00:52:58.982080Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc56c9f946e9ef06bd9eba0cd79f41b67d5563931830e0a3427af14e75102216

Aliases

arxiv: 1507.02087 · arxiv_version: 1507.02087v3 · doi: 10.48550/arxiv.1507.02087 · pith_short_12: ZRLMT6KG5HXQ · pith_short_16: ZRLMT6KG5HXQNPM6 · pith_short_8: ZRLMT6KG

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/ZRLMT6KG5HXQNPM6XIGNPH2BWZ \
  | 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: cc56c9f946e9ef06bd9eba0cd79f41b67d5563931830e0a3427af14e75102216

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "386c2988b3656bb63743257aba7847e26b5d9b350943d3e5aa40294f533ea49d",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci",
      "math.NA",
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2015-07-08T10:15:17Z",
    "title_canon_sha256": "947797a859b171b5e3ebdc82f086166321231668f3a7dedd0dbb5b4dff2d118b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.02087",
    "kind": "arxiv",
    "version": 3
  }
}