Pith Number

pith:7HQEMGOB

pith:2009:7HQEMGOBBWWCACET75GOZFCNC2

not attested not anchored not stored refs pending

The discontinuous Galerkin method for fractal conservation laws

Espen R. Jakobsen, Kenneth H. Karlsen, Simone Cifani

arxiv:0906.1092 v2 · 2009-06-05 · math.AP · cs.NA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7HQEMGOBBWWCACET75GOZFCNC2}

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	2026-06-03T23:06:26.833413Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9e04619c10dac200893ff4cec944d168fd7b9cf8d83c75d6b2607ee9c9427f3

Aliases

arxiv: 0906.1092 · arxiv_version: 0906.1092v2 · doi: 10.48550/arxiv.0906.1092 · pith_short_12: 7HQEMGOBBWWC · pith_short_16: 7HQEMGOBBWWCACET · pith_short_8: 7HQEMGOB

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/7HQEMGOBBWWCACET75GOZFCNC2 \
  | 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: f9e04619c10dac200893ff4cec944d168fd7b9cf8d83c75d6b2607ee9c9427f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4bd08922b993616e19bffa463cf201ebfdc7673b0779a0e9c7c6fb8657bf581e",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2009-06-05T11:22:37Z",
    "title_canon_sha256": "4c1fad9821263ca27a82a407e5d23f957aa829375842adcef629e2756f4399fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.1092",
    "kind": "arxiv",
    "version": 2
  }
}