Pith Number

pith:U4GQAQAI

pith:2008:U4GQAQAI2GL6JJMSHXNMD3UAX6

not attested not anchored not stored refs pending

Regularity of Solutions to Regular Shock Reflection for Potential Flow

Gui-Qiang Chen, Mikhail Feldman, Myoungjean Bae

arxiv:0804.2500 v1 · 2008-04-15 · math.AP · 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{U4GQAQAI2GL6JJMSHXNMD3UAX6}

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	2026-05-18T02:15:53.594267Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a70d004008d197e4a5923ddac1ee80bf85e32daa357f9a4373d90e1da6678949

Aliases

arxiv: 0804.2500 · arxiv_version: 0804.2500v1 · doi: 10.48550/arxiv.0804.2500 · pith_short_12: U4GQAQAI2GL6 · pith_short_16: U4GQAQAI2GL6JJMS · pith_short_8: U4GQAQAI

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/U4GQAQAI2GL6JJMSHXNMD3UAX6 \
  | 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: a70d004008d197e4a5923ddac1ee80bf85e32daa357f9a4373d90e1da6678949

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e366f8caaa2415f03b8b45413d81c2c19726416f1207f667d7160d939615ae16",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2008-04-15T23:14:05Z",
    "title_canon_sha256": "f9a37ad45ff4c7f9ed2fb3e16c933031217dd75be9894ddb6b7fe3715c141cba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.2500",
    "kind": "arxiv",
    "version": 1
  }
}