Pith Number

pith:Y2MJS2E4

pith:2012:Y2MJS2E4KAEK4OD2DUGX4ZVTAN

not attested not anchored not stored refs pending

Towards the full information chain theory: question difficulty

David Grace, Eugene Perevalov

arxiv:1212.2693 v2 · 2012-12-12 · physics.data-an · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y2MJS2E4KAEK4OD2DUGX4ZVTAN}

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	2026-05-18T03:33:38.605297Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c69899689c5008ae387a1d0d7e66b3035ecfea234a86c88030677d379321361b

Aliases

arxiv: 1212.2693 · arxiv_version: 1212.2693v2 · doi: 10.48550/arxiv.1212.2693 · pith_short_12: Y2MJS2E4KAEK · pith_short_16: Y2MJS2E4KAEK4OD2 · pith_short_8: Y2MJS2E4

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/Y2MJS2E4KAEK4OD2DUGX4ZVTAN \
  | 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: c69899689c5008ae387a1d0d7e66b3035ecfea234a86c88030677d379321361b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d4016d22fe00b60fdd745d150595aadec51b11248b372a5ad7c85f13032fa12",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.data-an",
    "submitted_at": "2012-12-12T03:19:32Z",
    "title_canon_sha256": "0f64c02a5ad66a7e6d76426d2330c21bf97346d70a76a61e95c721c0666c83f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.2693",
    "kind": "arxiv",
    "version": 2
  }
}