Pith Number

pith:PUPSO2JF

pith:2009:PUPSO2JFOHFECV2NTCZXYBB5ZX

not attested not anchored not stored refs pending

Natural versus forced convection in laminar starting plumes

Michael C. Rogers, Stephen W. Morris

arxiv:0905.0494 v3 · 2009-05-04 · physics.flu-dyn · physics.space-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{PUPSO2JFOHFECV2NTCZXYBB5ZX}

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	2026-05-18T02:13:47.735273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d1f27692571ca41574d98b37c043dcde2b30169dcbcb1aa9f5059fb3489d631

Aliases

arxiv: 0905.0494 · arxiv_version: 0905.0494v3 · doi: 10.48550/arxiv.0905.0494 · pith_short_12: PUPSO2JFOHFE · pith_short_16: PUPSO2JFOHFECV2N · pith_short_8: PUPSO2JF

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/PUPSO2JFOHFECV2NTCZXYBB5ZX \
  | 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: 7d1f27692571ca41574d98b37c043dcde2b30169dcbcb1aa9f5059fb3489d631

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99f140276b4a4804f29a8c712b8d235624106398477a815c764da57d3c5ef798",
    "cross_cats_sorted": [
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2009-05-04T21:06:09Z",
    "title_canon_sha256": "3238dd6dac0229bb55aec88478d8392ea55470a7768e369bc73e31bd9106980d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.0494",
    "kind": "arxiv",
    "version": 3
  }
}