Pith Number

pith:O7BMYPGA

pith:2012:O7BMYPGAIUC4XC5KCHTYAHWXFP

not attested not anchored not stored refs pending

A finite element exterior calculus framework for the rotating shallow-water equations

C. J. Cotter, J. Thuburn

arxiv:1207.3336 v3 · 2012-07-13 · 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{O7BMYPGAIUC4XC5KCHTYAHWXFP}

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	2026-05-18T03:15:43.853439Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77c2cc3cc04505cb8baa11e7801ed72bf962e3ffb24e88aa9e5d78668231ce2e

Aliases

arxiv: 1207.3336 · arxiv_version: 1207.3336v3 · doi: 10.48550/arxiv.1207.3336 · pith_short_12: O7BMYPGAIUC4 · pith_short_16: O7BMYPGAIUC4XC5K · pith_short_8: O7BMYPGA

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/O7BMYPGAIUC4XC5KCHTYAHWXFP \
  | 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: 77c2cc3cc04505cb8baa11e7801ed72bf962e3ffb24e88aa9e5d78668231ce2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48b1373f2658619c32d72679d16047d7cb243178e775b48b1400439e28fd03ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-07-13T19:17:55Z",
    "title_canon_sha256": "104a9391e93210cd3db0cd0518a22ba8a2566cb6f062a05c522c79e823f6ca1b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.3336",
    "kind": "arxiv",
    "version": 3
  }
}