Pith Number

pith:VWI2EIDU

pith:2013:VWI2EIDU3QLWXYXGBFDAJ63W6P

not attested not anchored not stored refs pending

PyFR: An Open Source Framework for Solving Advection-Diffusion Type Problems on Streaming Architectures using the Flux Reconstruction Approach

Antony M Farrington, Freddie D Witherden, Peter E Vincent

arxiv:1312.1638 v2 · 2013-12-05 · physics.comp-ph · 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{VWI2EIDU3QLWXYXGBFDAJ63W6P}

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	2026-05-18T01:45:58.185150Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad91a22074dc176be2e6094604fb76f3ebe64b81cbabb38d4ad895ac4283dbf5

Aliases

arxiv: 1312.1638 · arxiv_version: 1312.1638v2 · doi: 10.48550/arxiv.1312.1638 · pith_short_12: VWI2EIDU3QLW · pith_short_16: VWI2EIDU3QLWXYXG · pith_short_8: VWI2EIDU

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/VWI2EIDU3QLWXYXGBFDAJ63W6P \
  | 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: ad91a22074dc176be2e6094604fb76f3ebe64b81cbabb38d4ad895ac4283dbf5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8489848e3b6e4e29f95ec5c96604d12543a8c274b5ae8bd8ca3c53aa5059a76",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2013-12-05T18:39:40Z",
    "title_canon_sha256": "7e44ba8edde3a737be25edc03a246515857760abdd8c5fe02987ff3c3eaa127e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.1638",
    "kind": "arxiv",
    "version": 2
  }
}