Pith Number

pith:KEPXPKHZ

pith:2011:KEPXPKHZO3BM2JGP4VZWKC6NSK

not attested not anchored not stored refs pending

A note on Griffiths infinitesimal invariant for curves

Emanuele Raviolo

arxiv:1107.5603 v2 · 2011-07-27 · 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{KEPXPKHZO3BM2JGP4VZWKC6NSK}

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	2026-05-18T03:42:32.300718Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

511f77a8f976c2cd24cfe573650bcd9289e2cb4f22a992c2c4e7e20ff1fc3eaa

Aliases

arxiv: 1107.5603 · arxiv_version: 1107.5603v2 · doi: 10.48550/arxiv.1107.5603 · pith_short_12: KEPXPKHZO3BM · pith_short_16: KEPXPKHZO3BM2JGP · pith_short_8: KEPXPKHZ

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/KEPXPKHZO3BM2JGP4VZWKC6NSK \
  | 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: 511f77a8f976c2cd24cfe573650bcd9289e2cb4f22a992c2c4e7e20ff1fc3eaa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8834951ec1b5b9261bcba54ba6a343d4eb06378573fecb7b08f45d82d3c85af9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-07-27T23:02:22Z",
    "title_canon_sha256": "636f4b4398e3c3ff67ab4a1f2da46aec98d65e6250fa0bb4603b6c6ca25d756d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.5603",
    "kind": "arxiv",
    "version": 2
  }
}