Pith Number

pith:BBULR737

pith:2009:BBULR737IKSGBT7MFA5M553Q6K

not attested not anchored not stored refs pending

Surface Effects in the Unitary Fermi Gas

F. Ancilotto, F. Toigo, L. Salasnich

arxiv:0909.2344 v1 · 2009-09-12 · cond-mat.quant-gas

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BBULR737IKSGBT7MFA5M553Q6K}

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	2026-05-18T02:11:48.524441Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0868b8ff7f42a460cfec283acef770f2b57c36df92ed0d65fc4c6ea409fe4208

Aliases

arxiv: 0909.2344 · arxiv_version: 0909.2344v1 · doi: 10.48550/arxiv.0909.2344 · pith_short_12: BBULR737IKSG · pith_short_16: BBULR737IKSGBT7M · pith_short_8: BBULR737

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/BBULR737IKSGBT7MFA5M553Q6K \
  | 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: 0868b8ff7f42a460cfec283acef770f2b57c36df92ed0d65fc4c6ea409fe4208

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "127dc8feb70751b078932a728d24f3b7990f0eef8c1be210a46fb8b5d7cb2cd4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.quant-gas",
    "submitted_at": "2009-09-12T15:44:05Z",
    "title_canon_sha256": "9cfa3587c64dd29932846a0f7fe9a6ad9fff998cb5c8bfe2dc9d6cccae52e251"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2344",
    "kind": "arxiv",
    "version": 1
  }
}