Pith Number

pith:UOFSIEC7

pith:2013:UOFSIEC7VHTMGFWGDYSTR5JEBO

not attested not anchored not stored refs pending

How to determine the sign of a valuation on C[x,y]?

Pinaki Mondal

arxiv:1301.3172 v1 · 2013-01-14 · math.AC · 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{UOFSIEC7VHTMGFWGDYSTR5JEBO}

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	2026-05-18T03:36:26.327056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a38b24105fa9e6c316c61e2538f5240b8604f6a8b4da1ecc82df87cbebe665f3

Aliases

arxiv: 1301.3172 · arxiv_version: 1301.3172v1 · doi: 10.48550/arxiv.1301.3172 · pith_short_12: UOFSIEC7VHTM · pith_short_16: UOFSIEC7VHTMGFWG · pith_short_8: UOFSIEC7

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/UOFSIEC7VHTMGFWGDYSTR5JEBO \
  | 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: a38b24105fa9e6c316c61e2538f5240b8604f6a8b4da1ecc82df87cbebe665f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b289754c55987ec67066dfdb41e54c0d7550d5fceb698b97d70fc06abdce3b2e",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2013-01-14T22:11:40Z",
    "title_canon_sha256": "9d9c1e29a9f9d00950f367c1cd7c688358622a10afbe98d25a28cdaf3f85accf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.3172",
    "kind": "arxiv",
    "version": 1
  }
}