Pith Number

pith:QL65UHJ5

pith:2008:QL65UHJ5ZLIJEVOK4AA2OPOPQR

not attested not anchored not stored refs pending

Two-Dimensional Central-Upwind Schemes for Curvilinear Grids and Application to Gas Dynamics with Angular Momentum

Tobias F. Illenseer, Wolfgang J. Duschl

arxiv:0804.2979 v1 · 2008-04-18 · physics.comp-ph · 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{QL65UHJ5ZLIJEVOK4AA2OPOPQR}

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	2026-05-18T02:22:50.115966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82fdda1d3dcad09255cae001a73dcf8473fd83913efbbd3d239d169504a37f7e

Aliases

arxiv: 0804.2979 · arxiv_version: 0804.2979v1 · doi: 10.48550/arxiv.0804.2979 · pith_short_12: QL65UHJ5ZLIJ · pith_short_16: QL65UHJ5ZLIJEVOK · pith_short_8: QL65UHJ5

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/QL65UHJ5ZLIJEVOK4AA2OPOPQR \
  | 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: 82fdda1d3dcad09255cae001a73dcf8473fd83913efbbd3d239d169504a37f7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "831452e336f7b1501c14162deefafd59e6cadf13e6fad1caa91c1493b67052f8",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2008-04-18T09:10:12Z",
    "title_canon_sha256": "86f2d64efef9d0d4a9b62440341672a8274569ae8f5c2ff37812403034b027a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.2979",
    "kind": "arxiv",
    "version": 1
  }
}