Pith Number

pith:4CBN37KQ

pith:2021:4CBN37KQTAIOQSVQCF3MWUDFYJ

not attested not anchored not stored refs pending

Superfluid Helium Drops Levitated in High Vacuum

C. D. Brown, G. I. Harris, J. G. E. Harris, M. Namazi, M. T. Uysal, Y. Wang

arxiv:2109.05618 v2 · 2021-09-12 · cond-mat.other · physics.flu-dyn · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4CBN37KQTAIOQSVQCF3MWUDFYJ}

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	2026-07-05T05:37:52.156918Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e082ddfd509810e84ab01176cb5065c24650fd33d6793c71e5de9030b18e641d

Aliases

arxiv: 2109.05618 · arxiv_version: 2109.05618v2 · doi: 10.48550/arxiv.2109.05618 · pith_short_12: 4CBN37KQTAIO · pith_short_16: 4CBN37KQTAIOQSVQ · pith_short_8: 4CBN37KQ

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/4CBN37KQTAIOQSVQCF3MWUDFYJ \
  | 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: e082ddfd509810e84ab01176cb5065c24650fd33d6793c71e5de9030b18e641d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd8010f471974ec35974702a0b8bdf3e1b2e1bf082769a97402351b0597f3462",
    "cross_cats_sorted": [
      "physics.flu-dyn",
      "physics.optics"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.other",
    "submitted_at": "2021-09-12T21:26:01Z",
    "title_canon_sha256": "098e03f5a226210b6dcf396aaccf3cd9bf06377d0ccc2531b117c51356f9820a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.05618",
    "kind": "arxiv",
    "version": 2
  }
}