Pith Number

pith:IQDQZG4Z

pith:2017:IQDQZG4ZHFPQ5SND2BOT37XZJO

not attested not anchored not stored refs pending

A rapidly expanding Bose-Einstein condensate: an expanding universe in the lab

A. Kumar, G.K. Campbell, I.B. Spielman, S. Eckel, T. Jacobson

arxiv:1710.05800 v2 · 2017-10-16 · cond-mat.quant-gas · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IQDQZG4ZHFPQ5SND2BOT37XZJO}

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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

1 paper in Pith

Collective excitations in quantum gravity condensates

Receipt and verification

First computed	2026-05-18T00:18:00.038258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44070c9b99395f0ec9a3d05d3dfef94bba76cea8f8e72876b58ff324c3d39c8f

Aliases

arxiv: 1710.05800 · arxiv_version: 1710.05800v2 · doi: 10.48550/arxiv.1710.05800 · pith_short_12: IQDQZG4ZHFPQ · pith_short_16: IQDQZG4ZHFPQ5SND · pith_short_8: IQDQZG4Z

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/IQDQZG4ZHFPQ5SND2BOT37XZJO \
  | 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: 44070c9b99395f0ec9a3d05d3dfef94bba76cea8f8e72876b58ff324c3d39c8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e3196d8102fe5233234605d89d1edb298b6fb13c1612fa10f07bbf7fd927128",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.quant-gas",
    "submitted_at": "2017-10-16T16:02:59Z",
    "title_canon_sha256": "137f8860fd2ca154c12ca6f96bd61bdc3f031a2614130503397b9e99428b1271"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.05800",
    "kind": "arxiv",
    "version": 2
  }
}