Pith Number

pith:XCU2XF4J

pith:2023:XCU2XF4JKGW3H7MQI2DUIM5LFT

not attested not anchored not stored refs pending

An Eigenvalue-Free Implementation of the Log-Conformation Formulation

Florian Becker, Katharina Rauthmann, Lutz Pauli, Philipp Knechtges

arxiv:2308.09394 v2 · 2023-08-18 · physics.flu-dyn · cs.NA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XCU2XF4JKGW3H7MQI2DUIM5LFT}

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	2026-07-05T07:09:51.586961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8a9ab978951adb3fd9046874433ab2cf5a5bd2d2e3f25e47ea91751c3b3338c

Aliases

arxiv: 2308.09394 · arxiv_version: 2308.09394v2 · doi: 10.48550/arxiv.2308.09394 · pith_short_12: XCU2XF4JKGW3 · pith_short_16: XCU2XF4JKGW3H7MQ · pith_short_8: XCU2XF4J

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/XCU2XF4JKGW3H7MQI2DUIM5LFT \
  | 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: b8a9ab978951adb3fd9046874433ab2cf5a5bd2d2e3f25e47ea91751c3b3338c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6478e31c602032f6fc0e623a733f9f5503e159d1dbee95fb16932b473af47005",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2023-08-18T08:51:31Z",
    "title_canon_sha256": "29f7ea1d6361dacf57977f9d79d1bfa70c8fa4774e4b3944e1a8a908ec39379c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2308.09394",
    "kind": "arxiv",
    "version": 2
  }
}