Pith Number

pith:S56Z5UMK

pith:2021:S56Z5UMKCXTDSRK22VI2QXV4YX

not attested not anchored not stored refs pending

First and second sound in a compressible 3D Bose fluid

Christoph Eigen, Jake A. P. Glidden, Lena H. Dogra, Robert P. Smith, Timon A. Hilker, Zoran Hadzibabic

arxiv:2112.14763 v1 · 2021-12-29 · cond-mat.quant-gas · cond-mat.mes-hall · physics.flu-dyn · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S56Z5UMKCXTDSRK22VI2QXV4YX}

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	2026-07-05T04:30:06.342050Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

977d9ed18a15e639455ad551a85ebcc5f1b489a2092c194daf17f65e81df879d

Aliases

arxiv: 2112.14763 · arxiv_version: 2112.14763v1 · doi: 10.48550/arxiv.2112.14763 · pith_short_12: S56Z5UMKCXTD · pith_short_16: S56Z5UMKCXTDSRK2 · pith_short_8: S56Z5UMK

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/S56Z5UMKCXTDSRK22VI2QXV4YX \
  | 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: 977d9ed18a15e639455ad551a85ebcc5f1b489a2092c194daf17f65e81df879d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf78f7f6078b3d45df6522dcc46a961813b41803130f4e5b52ba9ae3a03665d3",
    "cross_cats_sorted": [
      "cond-mat.mes-hall",
      "physics.flu-dyn",
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cond-mat.quant-gas",
    "submitted_at": "2021-12-29T18:59:31Z",
    "title_canon_sha256": "c47626f8f5244338a5181eca632ffcb7fabb79ed583585cf4b8116a5c121b361"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.14763",
    "kind": "arxiv",
    "version": 1
  }
}