Pith Number

pith:OBER4X7J

pith:2010:OBER4X7JAKWWLJBBTJUGQMGLW3

not attested not anchored not stored refs pending

Flash Geometry of Algebraic Curves

Tristram de Piro

arxiv:1009.3219 v1 · 2010-09-16 · 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{OBER4X7JAKWWLJBBTJUGQMGLW3}

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	2026-05-18T04:40:46.720519Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70491e5fe902ad65a4219a686830cbb6caf74ad9e088b5fdb7d1760005fb9bf7

Aliases

arxiv: 1009.3219 · arxiv_version: 1009.3219v1 · doi: 10.48550/arxiv.1009.3219 · pith_short_12: OBER4X7JAKWW · pith_short_16: OBER4X7JAKWWLJBB · pith_short_8: OBER4X7J

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/OBER4X7JAKWWLJBBTJUGQMGLW3 \
  | 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: 70491e5fe902ad65a4219a686830cbb6caf74ad9e088b5fdb7d1760005fb9bf7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea74194f56f10d305ade61f58cca5224829277f8cddf072731047d48bd064c46",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2010-09-16T16:49:04Z",
    "title_canon_sha256": "09f064285d2f8c81288357bcc60c158041dd0e692c46b003ceb9e35a997aa3f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.3219",
    "kind": "arxiv",
    "version": 1
  }
}