Pith Number

pith:2BDMG65T

pith:2012:2BDMG65TBEBI76NUR4HTYGWCE7

not attested not anchored not stored refs pending

Why do bubbles in Guinness sink?

C. P. Cummins, E. S. Benilov, W. T. Lee

arxiv:1205.5233 v1 · 2012-05-23 · physics.flu-dyn · physics.pop-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{2BDMG65TBEBI76NUR4HTYGWCE7}

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	2026-05-18T01:57:23.945158Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d046c37bb309028ff9b48f0f3c1ac227f1ce4ab9d3e8686892b544df3d832de4

Aliases

arxiv: 1205.5233 · arxiv_version: 1205.5233v1 · doi: 10.48550/arxiv.1205.5233 · pith_short_12: 2BDMG65TBEBI · pith_short_16: 2BDMG65TBEBI76NU · pith_short_8: 2BDMG65T

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/2BDMG65TBEBI76NUR4HTYGWCE7 \
  | 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: d046c37bb309028ff9b48f0f3c1ac227f1ce4ab9d3e8686892b544df3d832de4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b400d1d859a4943dfc8e1d5b4d9150fdba3c59f257761e744f7f2a195f74a329",
    "cross_cats_sorted": [
      "physics.pop-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2012-05-23T17:35:14Z",
    "title_canon_sha256": "8bddfb2700d218b301075749aaa8a0526a1c4a174861a41c72f8e74bf7ba3b1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.5233",
    "kind": "arxiv",
    "version": 1
  }
}