Pith Number

pith:SDMAVE5P

pith:2008:SDMAVE5P3LCEFEFUSOYWAAZIVW

not attested not anchored not stored refs pending

Positivity in power series rings

Jaka Cimpric, Murray Marshall, Salma Kuhlmann

arxiv:0807.4996 v1 · 2008-07-31 · 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{SDMAVE5P3LCEFEFUSOYWAAZIVW}

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	2026-05-18T03:37:19.283729Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90d80a93afdac44290b493b1600328ad9b65011521ef8805bb297d3136a418c6

Aliases

arxiv: 0807.4996 · arxiv_version: 0807.4996v1 · doi: 10.48550/arxiv.0807.4996 · pith_short_12: SDMAVE5P3LCE · pith_short_16: SDMAVE5P3LCEFEFU · pith_short_8: SDMAVE5P

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/SDMAVE5P3LCEFEFUSOYWAAZIVW \
  | 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: 90d80a93afdac44290b493b1600328ad9b65011521ef8805bb297d3136a418c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d236da4b5bf7ff7d6470447268d159a0e20ea8c139370a1fa3827bb18ec326c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2008-07-31T07:13:37Z",
    "title_canon_sha256": "5034de981bb3679426ad977a4c68fd5c9431aaf375ad06167f914e23b6d5a519"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.4996",
    "kind": "arxiv",
    "version": 1
  }
}