Pith Number

pith:MMZK3MJ3

pith:1999:MMZK3MJ3F3MFB3FDYQWZNTGHHF

not attested not anchored not stored refs pending

Finite Element Simulation of the Motion of a Rigid Body in a Fluid with Free Surface

B.D. Reddy, S.J. Childs

arxiv:physics/9905001 v2 · 1999-05-01 · physics.flu-dyn · physics.ao-ph · physics.comp-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{MMZK3MJ3F3MFB3FDYQWZNTGHHF}

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	2026-05-18T01:38:04.142695Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6332adb13b2ed850eca3c42d96ccc739618263d020bef00aeef7dad9ca63ed6b

Aliases

arxiv: physics/9905001 · arxiv_version: physics/9905001v2 · doi: 10.48550/arxiv.physics/9905001 · pith_short_12: MMZK3MJ3F3MF · pith_short_16: MMZK3MJ3F3MFB3FD · pith_short_8: MMZK3MJ3

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/MMZK3MJ3F3MFB3FDYQWZNTGHHF \
  | 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: 6332adb13b2ed850eca3c42d96ccc739618263d020bef00aeef7dad9ca63ed6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e56b67c777e98b2bc84bef01fc85435326c141fa722e35610f38a08cf79b30d",
    "cross_cats_sorted": [
      "physics.ao-ph",
      "physics.comp-ph"
    ],
    "license": "",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "1999-05-01T17:03:02Z",
    "title_canon_sha256": "12dd0dc9c07d223a78ea9d1d200bd00c425a143a15018676ae61c3c71071788b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/9905001",
    "kind": "arxiv",
    "version": 2
  }
}