Pith Number

pith:2HSQSDFH

pith:2012:2HSQSDFH7CK3DFBYEXEHSSYB7H

not attested not anchored not stored refs pending

Gas Dynamics Equations: Computation

Gui-Qiang G. Chen

arxiv:1205.4433 v1 · 2012-05-20 · math.NA · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2HSQSDFH7CK3DFBYEXEHSSYB7H}

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	2026-05-18T03:55:13.253779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1e5090ca7f895b1943825c8794b01f9db2c8164026ddb77fcb7c331b3129993

Aliases

arxiv: 1205.4433 · arxiv_version: 1205.4433v1 · doi: 10.48550/arxiv.1205.4433 · pith_short_12: 2HSQSDFH7CK3 · pith_short_16: 2HSQSDFH7CK3DFBY · pith_short_8: 2HSQSDFH

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/2HSQSDFH7CK3DFBYEXEHSSYB7H \
  | 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: d1e5090ca7f895b1943825c8794b01f9db2c8164026ddb77fcb7c331b3129993

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0be3426e875333d7e5e1d1554a30d10582fa44395afa3a00d25ff4d86efeab2a",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-05-20T16:34:20Z",
    "title_canon_sha256": "99e39f7a30ddae935f50a2eb1324310eb05ed90331633fd10fee66771fe5532e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.4433",
    "kind": "arxiv",
    "version": 1
  }
}