Pith Number

pith:6WJFIIOU

pith:1997:6WJFIIOUUI7LD3JNVE23MEBEAF

not attested not anchored not stored refs pending

A Bicharacteristic Scheme for the Numerical Computation of Two-Dimensional Converging Shock Waves

D), Frank Demmig (Univ. Hannover, Uwe E. Meier

arxiv:physics/9708008 v1 · 1997-08-07 · physics.flu-dyn · 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{6WJFIIOUUI7LD3JNVE23MEBEAF}

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	2026-07-04T15:09:04.429656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5925421d4a23eb1ed2da935b610240155bb553e33c1400daae51d48913adbc5

Aliases

arxiv: physics/9708008 · arxiv_version: physics/9708008v1 · doi: 10.48550/arxiv.physics/9708008 · pith_short_12: 6WJFIIOUUI7L · pith_short_16: 6WJFIIOUUI7LD3JN · pith_short_8: 6WJFIIOU

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/6WJFIIOUUI7LD3JNVE23MEBEAF \
  | 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: f5925421d4a23eb1ed2da935b610240155bb553e33c1400daae51d48913adbc5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96a004526cdbd02abf7f95687311891551b7f696cfa1ba3d4a58837855a4b192",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "1997-08-07T13:32:50Z",
    "title_canon_sha256": "fc2db35de2d8173af65575f800b11bbbce851346fae63ea5dfff4e37a2f31352"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/9708008",
    "kind": "arxiv",
    "version": 1
  }
}