Pith Number

pith:2LVGWMUS

pith:2016:2LVGWMUSXBKRALRYTPZW7WKHYB

not attested not anchored not stored refs pending

A Hybrid Riemann Solver for Large Hyperbolic Systems of Conservation Laws

Birte Schmidtmann, Manuel Torrilhon

arxiv:1607.05721 v2 · 2016-07-19 · math.NA · astro-ph.IM · cs.CE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2LVGWMUSXBKRALRYTPZW7WKHYB}

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	2026-05-18T00:36:41.269229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2ea6b3292b855102e389bf36fd947c0666bf4bc2dfd3b568a6e55d40d263dbe

Aliases

arxiv: 1607.05721 · arxiv_version: 1607.05721v2 · doi: 10.48550/arxiv.1607.05721 · pith_short_12: 2LVGWMUSXBKR · pith_short_16: 2LVGWMUSXBKRALRY · pith_short_8: 2LVGWMUS

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/2LVGWMUSXBKRALRYTPZW7WKHYB \
  | 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: d2ea6b3292b855102e389bf36fd947c0666bf4bc2dfd3b568a6e55d40d263dbe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "454a64285d3fb1a7dd9fd02549e97ef3dad8c58157f7178f427289f5fe97587c",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "cs.CE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-07-19T14:01:45Z",
    "title_canon_sha256": "c3b4296f232436d781b4cc81be4233b6a50ec64e26db83a45b104441f704223b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.05721",
    "kind": "arxiv",
    "version": 2
  }
}