Pith Number

pith:RG4EDHSE

pith:2016:RG4EDHSE6OBBAK5M6WL7TIOLPA

not attested not anchored not stored refs pending

Classification of planar rational cuspidal curves. I. C**-fibrations

Karol Palka, Tomasz Pe{\l}ka

arxiv:1609.03992 v1 · 2016-09-13 · 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{RG4EDHSE6OBBAK5M6WL7TIOLPA}

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	2026-05-17T23:47:36.609988Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89b8419e44f382102bacf597f9a1cb783ecf59cf713aa5d538b6be9fe13e93fe

Aliases

arxiv: 1609.03992 · arxiv_version: 1609.03992v1 · doi: 10.48550/arxiv.1609.03992 · pith_short_12: RG4EDHSE6OBB · pith_short_16: RG4EDHSE6OBBAK5M · pith_short_8: RG4EDHSE

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/RG4EDHSE6OBBAK5M6WL7TIOLPA \
  | 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: 89b8419e44f382102bacf597f9a1cb783ecf59cf713aa5d538b6be9fe13e93fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb6ff7cf01245b1b50b22ad3c3e6e137b0795b657605f00997281a6d814017d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2016-09-13T19:34:02Z",
    "title_canon_sha256": "79e14375d60e9ca5813d5d9cfb93b7075d91686ba20e3ee183ddc4d730431628"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.03992",
    "kind": "arxiv",
    "version": 1
  }
}