Pith Number

pith:5AWO7PU3

pith:2019:5AWO7PU3D4R4REMV7UKQTN2MNX

not attested not anchored not stored refs pending

Accelerated Piston Problem and High Order Moving Boundary Tracking Method for Compressible Fluid Flows

Jiequan Li, Zhifang Du

arxiv:1906.04167 v1 · 2019-06-09 · physics.comp-ph · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5AWO7PU3D4R4REMV7UKQTN2MNX}

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	2026-05-17T23:43:42.030685Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e82cefbe9b1f23c89195fd1509b74c6dca3c03cee4620964276d5221ad4245d5

Aliases

arxiv: 1906.04167 · arxiv_version: 1906.04167v1 · doi: 10.48550/arxiv.1906.04167 · pith_short_12: 5AWO7PU3D4R4 · pith_short_16: 5AWO7PU3D4R4REMV · pith_short_8: 5AWO7PU3

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/5AWO7PU3D4R4REMV7UKQTN2MNX \
  | 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: e82cefbe9b1f23c89195fd1509b74c6dca3c03cee4620964276d5221ad4245d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "363e0fd8d51845775dd2dec69cfd6e53de8298a47087ac496eda84d96c4b07cb",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2019-06-09T07:14:31Z",
    "title_canon_sha256": "5b938e83dbf57561dee56f8e2e1f3ec9c0289d7379e13e99403d0a000f584492"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.04167",
    "kind": "arxiv",
    "version": 1
  }
}