Pith Number

pith:TMNMEKEJ

pith:2014:TMNMEKEJHC3LTNNNQ764IYIVF7

not attested not anchored not stored refs pending

Xiao's conjecture for general fibred surfaces

Juan Carlos Naranjo, Miguel \'Angel Barja, V\'ictor Gonz\'alez-Alonso

arxiv:1401.7502 v4 · 2014-01-29 · 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{TMNMEKEJHC3LTNNNQ764IYIVF7}

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	2026-05-18T01:37:16.269485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b1ac2288938b6b9b5ad87fdc461152fd435b034cddee6b97c57e587d3d48a01

Aliases

arxiv: 1401.7502 · arxiv_version: 1401.7502v4 · doi: 10.48550/arxiv.1401.7502 · pith_short_12: TMNMEKEJHC3L · pith_short_16: TMNMEKEJHC3LTNNN · pith_short_8: TMNMEKEJ

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/TMNMEKEJHC3LTNNNQ764IYIVF7 \
  | 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: 9b1ac2288938b6b9b5ad87fdc461152fd435b034cddee6b97c57e587d3d48a01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffb198189b1f876a09627aeb557b9a25499f2603e47bbb838734d8a858099ce5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-01-29T13:03:56Z",
    "title_canon_sha256": "fb92890dcd8aaeda8365225f152b3d1121221aff303a81d7f76a7fbfe04d04a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.7502",
    "kind": "arxiv",
    "version": 4
  }
}