Pith Number

pith:2SDDBUOS

pith:2012:2SDDBUOSMV6F4VERJWMF5OMTUG

not attested not anchored not stored refs pending

Around and beyond the canonical class

Vladimir Lazi\'c

arxiv:1210.7382 v1 · 2012-10-27 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2SDDBUOSMV6F4VERJWMF5OMTUG}

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	2026-05-17T23:48:48.110892Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d48630d1d2657c5e54914d985eb993a1a864cb43fcab682e9956b2198a2e197c

Aliases

arxiv: 1210.7382 · arxiv_version: 1210.7382v1 · doi: 10.48550/arxiv.1210.7382 · pith_short_12: 2SDDBUOSMV6F · pith_short_16: 2SDDBUOSMV6F4VER · pith_short_8: 2SDDBUOS

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/2SDDBUOSMV6F4VERJWMF5OMTUG \
  | 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: d48630d1d2657c5e54914d985eb993a1a864cb43fcab682e9956b2198a2e197c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e77236df0976d547fac159390d0638a062300f3b8affc89aed655359445d77d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-10-27T23:17:39Z",
    "title_canon_sha256": "1e7e8c29e4ea04aa92f5ab330e677e25138fcfbb7e426f6f7c90cf9f09d5378c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.7382",
    "kind": "arxiv",
    "version": 1
  }
}