Pith Number

pith:TYBMHUCK

pith:2012:TYBMHUCK4C6QB4LV3ATSSOHFGW

not attested not anchored not stored refs pending

Brill-Noether loci in codimension two

Nicola Tarasca

arxiv:1201.4948 v2 · 2012-01-24 · 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{TYBMHUCK4C6QB4LV3ATSSOHFGW}

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	2026-05-18T03:33:11.926804Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e02c3d04ae0bd00f175d8272938e535884b2b5712afe174e2ddf426d7e8c914

Aliases

arxiv: 1201.4948 · arxiv_version: 1201.4948v2 · doi: 10.48550/arxiv.1201.4948 · pith_short_12: TYBMHUCK4C6Q · pith_short_16: TYBMHUCK4C6QB4LV · pith_short_8: TYBMHUCK

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/TYBMHUCK4C6QB4LV3ATSSOHFGW \
  | 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: 9e02c3d04ae0bd00f175d8272938e535884b2b5712afe174e2ddf426d7e8c914

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af780e7880c1b679deb26499d7332cfbda0c520835e35253734399754ec0134a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2012-01-24T11:07:30Z",
    "title_canon_sha256": "43a7781d435f965b67779cc652f60e9e6ef32d0c429a383e7c2b9960b60e4220"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.4948",
    "kind": "arxiv",
    "version": 2
  }
}