Pith Number

pith:VYTA5C3Y

pith:2018:VYTA5C3YK5SO7VZJSQHLBIXLQT

not attested not anchored not stored refs pending

A Compact Exponential Scheme for Solving 1D Unsteady Convection-Diffusion Equation with Neumann Boundary Conditions

Yang Liu, Yucheng Fu, Zhenfu Tian

arxiv:1805.05728 v1 · 2018-05-15 · 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{VYTA5C3YK5SO7VZJSQHLBIXLQT}

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	2026-05-18T00:15:53.861901Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae260e8b785764efd729940eb0a2eb84dfed09395673c5e2f0f38b69e1ee45de

Aliases

arxiv: 1805.05728 · arxiv_version: 1805.05728v1 · doi: 10.48550/arxiv.1805.05728 · pith_short_12: VYTA5C3YK5SO · pith_short_16: VYTA5C3YK5SO7VZJ · pith_short_8: VYTA5C3Y

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/VYTA5C3YK5SO7VZJSQHLBIXLQT \
  | 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: ae260e8b785764efd729940eb0a2eb84dfed09395673c5e2f0f38b69e1ee45de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe28cd13dd7b7c453454a701e189a78db20667706df77631d8593aa265d6f820",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2018-05-15T12:28:53Z",
    "title_canon_sha256": "52d9df6491068054150890b634ff1a74d389366009b76ebf08a7689cc3358ca0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.05728",
    "kind": "arxiv",
    "version": 1
  }
}