Pith Number

pith:QE67CXQC

pith:2012:QE67CXQCNWRB7TME7WW6BNLMXL

not attested not anchored not stored refs pending

Some results on evolution

Giuseppe Tomassini

arxiv:1201.2287 v1 · 2012-01-11 · math.CV · 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{QE67CXQCNWRB7TME7WW6BNLMXL}

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	2026-05-18T04:04:52.678821Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

813df15e026da21fcd84fdade0b56cbaf28a8365c7066f1e4c72e8b8a304f0d9

Aliases

arxiv: 1201.2287 · arxiv_version: 1201.2287v1 · doi: 10.48550/arxiv.1201.2287 · pith_short_12: QE67CXQCNWRB · pith_short_16: QE67CXQCNWRB7TME · pith_short_8: QE67CXQC

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/QE67CXQCNWRB7TME7WW6BNLMXL \
  | 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: 813df15e026da21fcd84fdade0b56cbaf28a8365c7066f1e4c72e8b8a304f0d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5c4156a70fb0f59b7e27f44d505b8e347e816d278f9050b56b739a4e87008cf",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2012-01-11T12:01:42Z",
    "title_canon_sha256": "2be9365ac0c4e913d5c93a6e60c8f6eb4a164ffc368ed285a059374265fb6924"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2287",
    "kind": "arxiv",
    "version": 1
  }
}