Pith Number

pith:GD5V3YDM

pith:2019:GD5V3YDM4EQHDHGROZRCQQGQQ7

not attested not anchored not stored refs pending

Free Semialgebraic Geometry

Tim Netzer

arxiv:1902.11170 v1 · 2019-02-28 · 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{GD5V3YDM4EQHDHGROZRCQQGQQ7}

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	2026-05-17T23:52:25.558746Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30fb5de06ce120719cd176622840d087d1d79b158149bdf3f2f2dc54caa52c26

Aliases

arxiv: 1902.11170 · arxiv_version: 1902.11170v1 · doi: 10.48550/arxiv.1902.11170 · pith_short_12: GD5V3YDM4EQH · pith_short_16: GD5V3YDM4EQHDHGR · pith_short_8: GD5V3YDM

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/GD5V3YDM4EQHDHGROZRCQQGQQ7 \
  | 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: 30fb5de06ce120719cd176622840d087d1d79b158149bdf3f2f2dc54caa52c26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "219a45b63140744097d6183ce318446b4f06f01038d8733b3778d1d3b56aab73",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-02-28T15:50:23Z",
    "title_canon_sha256": "0ffdc6841f9883a96ca5649cf063653efdcf89bf521ac3551cb8d6b5ff498d74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.11170",
    "kind": "arxiv",
    "version": 1
  }
}