Pith Number

pith:7RHDFUL2

pith:2004:7RHDFUL2RXJQ5QTJEMLORJ4AKA

not attested not anchored not stored refs pending

Universal Properties of the Four-Boson System in Two Dimensions

H.-W. Hammer, L. Platter, U.-G. Mei{\ss}ner

arxiv:cond-mat/0405660 v2 · 2004-05-28 · cond-mat.other · nucl-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7RHDFUL2RXJQ5QTJEMLORJ4AKA}

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	2026-05-18T01:39:58.118639Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc4e32d17a8dd30ec2692316e8a780503ba77d4924f2e2ea16e9744d2093e394

Aliases

arxiv: cond-mat/0405660 · arxiv_version: cond-mat/0405660v2 · doi: 10.48550/arxiv.cond-mat/0405660 · pith_short_12: 7RHDFUL2RXJQ · pith_short_16: 7RHDFUL2RXJQ5QTJ · pith_short_8: 7RHDFUL2

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/7RHDFUL2RXJQ5QTJEMLORJ4AKA \
  | 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: fc4e32d17a8dd30ec2692316e8a780503ba77d4924f2e2ea16e9744d2093e394

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "831698174acd426d3fd941760279d1555c07e6b871a1d8a7818da31ea265d889",
    "cross_cats_sorted": [
      "nucl-th"
    ],
    "license": "",
    "primary_cat": "cond-mat.other",
    "submitted_at": "2004-05-28T17:40:11Z",
    "title_canon_sha256": "05b79f8d4deae0de5c1c46207b6859ebced2d47ebf03880e363d7966c10f5693"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/0405660",
    "kind": "arxiv",
    "version": 2
  }
}