Pith Number

pith:FRMEUPQK

pith:2013:FRMEUPQKAYYJ4OTIWOLEIL2TIC

not attested not anchored not stored refs pending

Superfluidity, Sound Velocity and Quasi Condensation in the 2D BCS-BEC Crossover

F. Toigo, L. Salasnich, P.A. Marchetti

arxiv:1309.7459 v2 · 2013-09-28 · cond-mat.quant-gas · cond-mat.supr-con

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FRMEUPQKAYYJ4OTIWOLEIL2TIC}

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	2026-05-18T03:06:44.203610Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c584a3e0a06309e3a68b396442f5340acfd5354cc5d4086ed2ab588aaca747d

Aliases

arxiv: 1309.7459 · arxiv_version: 1309.7459v2 · doi: 10.48550/arxiv.1309.7459 · pith_short_12: FRMEUPQKAYYJ · pith_short_16: FRMEUPQKAYYJ4OTI · pith_short_8: FRMEUPQK

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/FRMEUPQKAYYJ4OTIWOLEIL2TIC \
  | 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: 2c584a3e0a06309e3a68b396442f5340acfd5354cc5d4086ed2ab588aaca747d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "280232cb927e67bae4a8f34633d204394530dc5e28fbc497e61b66c0d7180692",
    "cross_cats_sorted": [
      "cond-mat.supr-con"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.quant-gas",
    "submitted_at": "2013-09-28T13:40:33Z",
    "title_canon_sha256": "4f1f9364729427defa49b6cf6cdf493e37a7cf8f03e166fccb7b5ea5ae7fb274"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.7459",
    "kind": "arxiv",
    "version": 2
  }
}