Pith Number

pith:42HDODOO

pith:2009:42HDODOOL7RGRAYMWYAQXK62ZO

not attested not anchored not stored refs pending

Propagation of Second sound in a superfluid Fermi gas in the unitary limit

Emiko Arahata, Tetsuro Nikuni

arxiv:0907.2743 v3 · 2009-07-16 · cond-mat.quant-gas · cond-mat.other

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{42HDODOOL7RGRAYMWYAQXK62ZO}

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	2026-05-18T03:23:58.811846Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e68e370dce5fe268830cb6010babdacba784a670b1d6e9eecbf9a30235634017

Aliases

arxiv: 0907.2743 · arxiv_version: 0907.2743v3 · doi: 10.48550/arxiv.0907.2743 · pith_short_12: 42HDODOOL7RG · pith_short_16: 42HDODOOL7RGRAYM · pith_short_8: 42HDODOO

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/42HDODOOL7RGRAYMWYAQXK62ZO \
  | 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: e68e370dce5fe268830cb6010babdacba784a670b1d6e9eecbf9a30235634017

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cbb75a5315df37cc52c86545b40458d1b99488e8f7d6a5d9f2b027bef74102a0",
    "cross_cats_sorted": [
      "cond-mat.other"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.quant-gas",
    "submitted_at": "2009-07-16T04:43:11Z",
    "title_canon_sha256": "be2c258106cbfc696ec957ed9cd6956e2c9a0e023f4365f009bea23b900e7c47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.2743",
    "kind": "arxiv",
    "version": 3
  }
}