Pith Number

pith:CVQCDLGD

pith:2009:CVQCDLGDEW3OC4S2KNC2NTOYGK

not attested not anchored not stored refs pending

Hydrodynamic Limit of the Boltzmann Equation with Contact Discontinuities

Feimin Huang, Tong Yang, Yi Wang

arxiv:0904.1836 v1 · 2009-04-12 · 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{CVQCDLGDEW3OC4S2KNC2NTOYGK}

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	2026-05-18T02:14:06.361445Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

156021acc325b6e1725a5345a6cdd8329c6b95951bb97515ea3875e8890d2516

Aliases

arxiv: 0904.1836 · arxiv_version: 0904.1836v1 · doi: 10.48550/arxiv.0904.1836 · pith_short_12: CVQCDLGDEW3O · pith_short_16: CVQCDLGDEW3OC4S2 · pith_short_8: CVQCDLGD

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/CVQCDLGDEW3OC4S2KNC2NTOYGK \
  | 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: 156021acc325b6e1725a5345a6cdd8329c6b95951bb97515ea3875e8890d2516

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05986f135a357933e15ad27c4a851361cd3df9d8f25ac56d4a7e9d0733bb2f2d",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2009-04-12T03:41:32Z",
    "title_canon_sha256": "226c163f3f4295bb1f3381ffe82e9facda10228cef80b2946cd97777a0efa219"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.1836",
    "kind": "arxiv",
    "version": 1
  }
}