Pith Number

pith:S7BMXHFH

pith:2021:S7BMXHFHLLGVMQ63HBXI4JVSR5

not attested not anchored not stored refs pending

Mass-Conserving Implicit-Explicit Methods for Coupled Compressible Navier-Stokes Equations

Emil M. Constantinescu, Hong Zhang, Robert L. Jacob, Shinhoo Kang

arxiv:2101.09263 v3 · 2021-01-22 · math.NA · cs.NA · 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{S7BMXHFHLLGVMQ63HBXI4JVSR5}

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	2026-07-05T02:55:38.758878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97c2cb9ca75acd5643db386e8e26b28f41e8b0f1e870ad758ff479f2551e4ed9

Aliases

arxiv: 2101.09263 · arxiv_version: 2101.09263v3 · doi: 10.48550/arxiv.2101.09263 · pith_short_12: S7BMXHFHLLGV · pith_short_16: S7BMXHFHLLGVMQ63 · pith_short_8: S7BMXHFH

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/S7BMXHFHLLGVMQ63HBXI4JVSR5 \
  | 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: 97c2cb9ca75acd5643db386e8e26b28f41e8b0f1e870ad758ff479f2551e4ed9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23c0b216c1d42331e86bbfce569ff8dc5a02e53cec15d775dd52c1ee33d6c7b8",
    "cross_cats_sorted": [
      "cs.NA",
      "physics.comp-ph",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2021-01-22T18:30:18Z",
    "title_canon_sha256": "540f6cc08c762ad8ffe800ca68a3027920f2c67c945882aee5cd5052daba28ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.09263",
    "kind": "arxiv",
    "version": 3
  }
}