Pith Number

pith:NIWMWQQ7

pith:2016:NIWMWQQ7SJOYFMDMHCF4Z7OYCG

not attested not anchored not stored refs pending

Curves homogeneous under analytic transformations

Giuseppe Della Sala

arxiv:1602.02525 v1 · 2016-02-08 · 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{NIWMWQQ7SJOYFMDMHCF4Z7OYCG}

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	2026-05-18T01:21:09.578777Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a2ccb421f925d82b06c388bccfdd8119f5b5be8a3ff247c6044c9d92cff5a63

Aliases

arxiv: 1602.02525 · arxiv_version: 1602.02525v1 · doi: 10.48550/arxiv.1602.02525 · pith_short_12: NIWMWQQ7SJOY · pith_short_16: NIWMWQQ7SJOYFMDM · pith_short_8: NIWMWQQ7

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/NIWMWQQ7SJOYFMDMHCF4Z7OYCG \
  | 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: 6a2ccb421f925d82b06c388bccfdd8119f5b5be8a3ff247c6044c9d92cff5a63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8cc57bc17d269fc6b46004f81b842c36fc9eb4b3fd00d501437b2329da187dcc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2016-02-08T11:10:50Z",
    "title_canon_sha256": "e24f8d276100b06705e24c396858d223be25a16f303bfc0b4ca13f743add3e60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.02525",
    "kind": "arxiv",
    "version": 1
  }
}