Pith Number

pith:E2ERUWMA

pith:2012:E2ERUWMA4VQUHFT3BYLEYK77MO

not attested not anchored not stored refs pending

A new look at the bowl phenomenon

Alysson M. Costa, Pedro Belin Castellucci

arxiv:1211.6406 v2 · 2012-11-27 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E2ERUWMA4VQUHFT3BYLEYK77MO}

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	2026-05-18T02:52:49.659847Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26891a5980e56143967b0e164c2bff638455afdecaed515603a16b583712e18a

Aliases

arxiv: 1211.6406 · arxiv_version: 1211.6406v2 · doi: 10.48550/arxiv.1211.6406 · pith_short_12: E2ERUWMA4VQU · pith_short_16: E2ERUWMA4VQUHFT3 · pith_short_8: E2ERUWMA

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/E2ERUWMA4VQUHFT3BYLEYK77MO \
  | 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: 26891a5980e56143967b0e164c2bff638455afdecaed515603a16b583712e18a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d7f3f7db6de8f0b184e96a477cda9ea6b4494a8e5dc5d2ceb613ca5a1266503",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2012-11-27T20:02:54Z",
    "title_canon_sha256": "16fe200b37ea98f55c86a8cfc728ad4c238fbf5486a818ea2ecc3510557c567c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.6406",
    "kind": "arxiv",
    "version": 2
  }
}