Pith Number

pith:MY2JLHEG

pith:2004:MY2JLHEGB52G5XMHL7ZCGUQN7S

not attested not anchored not stored refs pending

Stability of flow through a slowly diverging pipe

Kirti Chandra Sahu, Rama Govindarajan

arxiv:physics/0409037 v2 · 2004-09-07 · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MY2JLHEGB52G5XMHL7ZCGUQN7S}

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	2026-07-05T02:10:35.233638Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6634959c860f746edd875ff223520dfc970ef68d95d745b24642d7d3035a2bc0

Aliases

arxiv: physics/0409037 · arxiv_version: physics/0409037v2 · doi: 10.48550/arxiv.physics/0409037 · pith_short_12: MY2JLHEGB52G · pith_short_16: MY2JLHEGB52G5XMH · pith_short_8: MY2JLHEG

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/MY2JLHEGB52G5XMHL7ZCGUQN7S \
  | 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: 6634959c860f746edd875ff223520dfc970ef68d95d745b24642d7d3035a2bc0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "742795381da0b289d271bfb286093d5814c3fe8d2fc12a39c2a9197163f5b07b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2004-09-07T12:55:12Z",
    "title_canon_sha256": "2c9fe04a806e404729037934ce6a0cfca7421944990e6c08d1cceafba182e244"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0409037",
    "kind": "arxiv",
    "version": 2
  }
}