Pith Number

pith:4G2CA34U

pith:2012:4G2CA34UAM7UMM6XSPJSBKABVH

not attested not anchored not stored refs pending

On the second iterate for active scalar equations

Susan Friedlander, Walter Rusin

arxiv:1206.3349 v2 · 2012-06-15 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4G2CA34UAM7UMM6XSPJSBKABVH}

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	2026-05-18T01:56:52.923285Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1b4206f94033f4633d793d320a801a9d31307be4a4a284b5e21a55e55045c37

Aliases

arxiv: 1206.3349 · arxiv_version: 1206.3349v2 · doi: 10.48550/arxiv.1206.3349 · pith_short_12: 4G2CA34UAM7U · pith_short_16: 4G2CA34UAM7UMM6X · pith_short_8: 4G2CA34U

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/4G2CA34UAM7UMM6XSPJSBKABVH \
  | 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: e1b4206f94033f4633d793d320a801a9d31307be4a4a284b5e21a55e55045c37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4db4fa512d4bde5c0725f39d9ac63c9bca208d50d9390d2929327f80b71afc03",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2012-06-15T00:10:35Z",
    "title_canon_sha256": "e36f6f266a89b7be36b695ef159830c3e02701d790f07086166165c114871cbe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.3349",
    "kind": "arxiv",
    "version": 2
  }
}