Pith Number

pith:IJRJ6P52

pith:2004:IJRJ6P52HK3VYZ7JS2KDFC7YEO

not attested not anchored not stored refs pending

Non rigidity of hyperbolic laminations

Bertrand Deroin

arxiv:math/0409221 v1 · 2004-09-14 · math.DS · 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{IJRJ6P52HK3VYZ7JS2KDFC7YEO}

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	2026-05-18T04:05:28.366776Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42629f3fba3ab75c67e99694328bf823bde9e93cd51e367533a4a0db6fb2d8b2

Aliases

arxiv: math/0409221 · arxiv_version: math/0409221v1 · doi: 10.48550/arxiv.math/0409221 · pith_short_12: IJRJ6P52HK3V · pith_short_16: IJRJ6P52HK3VYZ7J · pith_short_8: IJRJ6P52

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/IJRJ6P52HK3VYZ7JS2KDFC7YEO \
  | 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: 42629f3fba3ab75c67e99694328bf823bde9e93cd51e367533a4a0db6fb2d8b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff89d909c7f946dcb9860aaa4864362eafdd0c95ac81d4ea94d2b416b07607f3",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "",
    "primary_cat": "math.DS",
    "submitted_at": "2004-09-14T10:44:20Z",
    "title_canon_sha256": "cda8e5e8036d229079d640c79281525795ec11d3aa504573bdd584e2dc8bd753"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0409221",
    "kind": "arxiv",
    "version": 1
  }
}