Pith Number

pith:CY4A5VQ5

pith:2014:CY4A5VQ5D3U72HSEJMDC4BVALJ

not attested not anchored not stored refs pending

Continuous functions in the plane regular after one blowing-up

Goulwen Fichou (IRMAR), Jean-Philippe Monnier (LAREMA), Ronan Quarez (IRMAR)

arxiv:1409.8223 v1 · 2014-09-29 · 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{CY4A5VQ5D3U72HSEJMDC4BVALJ}

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	2026-05-18T02:41:33.532722Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16380ed61d1ee9fd1e444b062e06a05a5420a9f075f3cf092f4a3e617585ab90

Aliases

arxiv: 1409.8223 · arxiv_version: 1409.8223v1 · doi: 10.48550/arxiv.1409.8223 · pith_short_12: CY4A5VQ5D3U7 · pith_short_16: CY4A5VQ5D3U72HSE · pith_short_8: CY4A5VQ5

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/CY4A5VQ5D3U72HSEJMDC4BVALJ \
  | 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: 16380ed61d1ee9fd1e444b062e06a05a5420a9f075f3cf092f4a3e617585ab90

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d716cd2f719571483fe380f48ea25f543b6b05c8524bbb8cda0cfe844c37232f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-09-29T18:29:53Z",
    "title_canon_sha256": "f4673a352ebfefab3040d0d240068152798aa165292ba3851320dc55364e7b6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.8223",
    "kind": "arxiv",
    "version": 1
  }
}