Pith Number

pith:RUCFZZKA

pith:2014:RUCFZZKAWTCLAJFX5VP3RB7KXC

not attested not anchored not stored refs pending

The method of dynamic projection operators in the theory of hyperbolic systems of partial differential equations with variable coefficients

Irina Vereshchagina, Sergey Leble

arxiv:1403.7751 v1 · 2014-03-30 · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RUCFZZKAWTCLAJFX5VP3RB7KXC}

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	2026-05-18T02:55:12.461409Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d045ce540b4c4b024b7ed5fb887eab881e10adbe979f79aa41e1c208261da48

Aliases

arxiv: 1403.7751 · arxiv_version: 1403.7751v1 · doi: 10.48550/arxiv.1403.7751 · pith_short_12: RUCFZZKAWTCL · pith_short_16: RUCFZZKAWTCLAJFX · pith_short_8: RUCFZZKA

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/RUCFZZKAWTCLAJFX5VP3RB7KXC \
  | 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: 8d045ce540b4c4b024b7ed5fb887eab881e10adbe979f79aa41e1c208261da48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "06214ad3087a5984f80dd840811950ae1f1ad4d3b12172b1cf2d892256423370",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2014-03-30T13:01:44Z",
    "title_canon_sha256": "af8df724bce3c263608326ce3d088e497ac713f1aae20c5bf7e7c650f32f6599"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.7751",
    "kind": "arxiv",
    "version": 1
  }
}