Pith Number

pith:FIC3DC56

pith:2014:FIC3DC56DN65VQ3ICMRTLY63VJ

not attested not anchored not stored refs pending

On birational maps from cubic threefolds

J\'er\'emy Blanc, St\'ephane Lamy

arxiv:1409.7778 v2 · 2014-09-27 · 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{FIC3DC56DN65VQ3ICMRTLY63VJ}

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	2026-05-18T01:02:05.358581Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a05b18bbe1b7ddac368132335e3dbaa51b0065a3940abcd6b94ae1b08ca44db

Aliases

arxiv: 1409.7778 · arxiv_version: 1409.7778v2 · doi: 10.48550/arxiv.1409.7778 · pith_short_12: FIC3DC56DN65 · pith_short_16: FIC3DC56DN65VQ3I · pith_short_8: FIC3DC56

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/FIC3DC56DN65VQ3ICMRTLY63VJ \
  | 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: 2a05b18bbe1b7ddac368132335e3dbaa51b0065a3940abcd6b94ae1b08ca44db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb865951b218139fe09da2438d116c26faca2c74ecedc7ea7f71aea7e092e165",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-09-27T07:35:25Z",
    "title_canon_sha256": "181acde2128f730f1c722033af57ecc729353e826cde1f6f12a067f8acac5097"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.7778",
    "kind": "arxiv",
    "version": 2
  }
}