Pith Number

pith:X4KPYLIQ

pith:2006:X4KPYLIQT2QRWY2TYCF2TTLHGZ

not attested not anchored not stored refs pending

The Electronic Ground State Energy Problem: a New Reduced Density Matrix Approach

Eric Cances, Gabriel Stoltz, Mathieu Lewin

arxiv:quant-ph/0602042 v2 · 2006-02-03 · quant-ph · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X4KPYLIQT2QRWY2TYCF2TTLHGZ}

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.

Cited by

2 papers in Pith

Entanglement Complexity in Many-body Systems from Positivity Scaling Laws

Receipt and verification

First computed	2026-07-04T17:02:55.678639Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf14fc2d109ea11b6353c08ba9cd67367c02c4719a3a296891914e62b9d976f6

Aliases

arxiv: quant-ph/0602042 · arxiv_version: quant-ph/0602042v2 · doi: 10.48550/arxiv.quant-ph/0602042 · pith_short_12: X4KPYLIQT2QR · pith_short_16: X4KPYLIQT2QRWY2T · pith_short_8: X4KPYLIQ

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/X4KPYLIQT2QRWY2TYCF2TTLHGZ \
  | 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: bf14fc2d109ea11b6353c08ba9cd67367c02c4719a3a296891914e62b9d976f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce9380217159f5d247c7adc4ff5f9b6301b84d433c21c172277e4848d0c83cce",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2006-02-03T14:22:04Z",
    "title_canon_sha256": "9564927ea923876e33aec8895b9ec721c6b6f02c9acc6df62879f7aedb64d205"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0602042",
    "kind": "arxiv",
    "version": 2
  }
}