Pith Number

pith:OIRDM62A

pith:2013:OIRDM62A4FVNJRIMG5HVUXR7WZ

not attested not anchored not stored refs pending

Quantum Fisher information as signature of superradiant quantum phase transition

F. Nori, G. R. Jin, L. N. Wu, N. Lambert, T. L. Wang, W. Yang

arxiv:1312.1426 v2 · 2013-12-05 · quant-ph · cond-mat.quant-gas · physics.atom-ph · physics.data-an · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OIRDM62A4FVNJRIMG5HVUXR7WZ}

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	2026-05-18T02:48:02.287574Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7222367b40e16ad4c50c374f5a5e3fb652b5b4becbfb848e7a36973b335bf454

Aliases

arxiv: 1312.1426 · arxiv_version: 1312.1426v2 · doi: 10.48550/arxiv.1312.1426 · pith_short_12: OIRDM62A4FVN · pith_short_16: OIRDM62A4FVNJRIM · pith_short_8: OIRDM62A

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/OIRDM62A4FVNJRIMG5HVUXR7WZ \
  | 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: 7222367b40e16ad4c50c374f5a5e3fb652b5b4becbfb848e7a36973b335bf454

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "732169ac6808d903e00320a671ef0e2045ab1eeeb8c315e29fc37e0b52da627a",
    "cross_cats_sorted": [
      "cond-mat.quant-gas",
      "physics.atom-ph",
      "physics.data-an",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-12-05T03:42:21Z",
    "title_canon_sha256": "0fac37411b55055a4ac39c5b8801f9663106ef3625cba00e4a3220ce67ad706e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.1426",
    "kind": "arxiv",
    "version": 2
  }
}