Pith Number

pith:35YFTS5O

pith:2010:35YFTS5OT5EIPCMUMIRCDA3L36

not attested not anchored not stored refs pending

Loss of derivatives in the infinite type

G. Zampieri, S. Pinton, T.V. Khanh

arxiv:1009.4395 v1 · 2010-09-22 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{35YFTS5OT5EIPCMUMIRCDA3L36}

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	2026-05-18T04:40:33.206030Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df7059cbae9f48878994622221836bdfb0564932332d42ef8a6cddd33d3ac894

Aliases

arxiv: 1009.4395 · arxiv_version: 1009.4395v1 · doi: 10.48550/arxiv.1009.4395 · pith_short_12: 35YFTS5OT5EI · pith_short_16: 35YFTS5OT5EIPCMU · pith_short_8: 35YFTS5O

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/35YFTS5OT5EIPCMUMIRCDA3L36 \
  | 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: df7059cbae9f48878994622221836bdfb0564932332d42ef8a6cddd33d3ac894

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fe5ee6859a419f948eacb9783cf5b8ef50328291be2763e70b1abd08da5a3f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2010-09-22T15:51:13Z",
    "title_canon_sha256": "710070ed0ce8669328eec5202ccde241b2af42989681eec435542a8f4327f69a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.4395",
    "kind": "arxiv",
    "version": 1
  }
}