Pith Number

pith:C5UDEHZO

pith:1999:C5UDEHZOLEONMPBJ3J34MCUFKR

not attested not anchored not stored refs pending

On the vanishing cycles of a meromorphic function on the complement of its poles

Dirk Siersma, Mihai Tibar

arxiv:math/9905108 v2 · 1999-05-19 · math.AG · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C5UDEHZOLEONMPBJ3J34MCUFKR}

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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	2026-05-18T00:52:29.577545Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1768321f2e591cd63c29da77c60a85544db46adb87c3750ba727419d6e9c360f

Aliases

arxiv: math/9905108 · arxiv_version: math/9905108v2 · doi: 10.48550/arxiv.math/9905108 · pith_short_12: C5UDEHZOLEON · pith_short_16: C5UDEHZOLEONMPBJ · pith_short_8: C5UDEHZO

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/C5UDEHZOLEONMPBJ3J34MCUFKR \
  | 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: 1768321f2e591cd63c29da77c60a85544db46adb87c3750ba727419d6e9c360f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38f5cb499baae580c8c5530bbbfa4cf86308b81aadfadd56fc08972cc6f83c1d",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "1999-05-19T07:39:31Z",
    "title_canon_sha256": "97f91cffac9576f3003422cc0879ca8f2d962d5caf32b3740911a18241fc2ec1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9905108",
    "kind": "arxiv",
    "version": 2
  }
}