Pith Number

pith:ZWVE6RWN

pith:1997:ZWVE6RWNCPWDDLHOGWMYR5YPJC

not attested not anchored not stored refs pending

Closure of rigid semianalytic sets

Hans Schoutens (Mathematical Institute, Oxford University)

arxiv:math/9706227 v1 · 1997-06-21 · math.DG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZWVE6RWNCPWDDLHOGWMYR5YPJC}

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	2026-05-18T01:05:35.109235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdaa4f46cd13ec31acee359988f70f48b04c7e7bd618d4e549c1d20c5e303f86

Aliases

arxiv: math/9706227 · arxiv_version: math/9706227v1 · doi: 10.48550/arxiv.math/9706227 · pith_short_12: ZWVE6RWNCPWD · pith_short_16: ZWVE6RWNCPWDDLHO · pith_short_8: ZWVE6RWN

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/ZWVE6RWNCPWDDLHOGWMYR5YPJC \
  | 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: cdaa4f46cd13ec31acee359988f70f48b04c7e7bd618d4e549c1d20c5e303f86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66254af055dc1bff8e2eec14f9296aed2fdc8c3a6c083f7eab18de3ef3a3561d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "1997-06-21T00:00:00Z",
    "title_canon_sha256": "fc90a4701eebaac4ca134206aa11e6fa71a1a7793253b63b2b379b09ea55edba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9706227",
    "kind": "arxiv",
    "version": 1
  }
}