Pith Number

pith:F54KC4FZ

pith:2004:F54KC4FZP7G4O5ZGHTCZKNU7BE

not attested not anchored not stored refs pending

Boundary rigidity and stability for generic simple metrics

Gunther Uhlmann, Plamen Stefanov

arxiv:math/0408075 v1 · 2004-08-05 · math.DG · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F54KC4FZP7G4O5ZGHTCZKNU7BE}

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.

Cited by

1 paper in Pith

Limits of the inverse scattering problem

Receipt and verification

First computed	2026-07-04T14:38:58.799244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f78a170b97fcdc777263cc595369f09334f487132a6ed9cdac92bc55338f4ce

Aliases

arxiv: math/0408075 · arxiv_version: math/0408075v1 · doi: 10.48550/arxiv.math/0408075 · pith_short_12: F54KC4FZP7G4 · pith_short_16: F54KC4FZP7G4O5ZG · pith_short_8: F54KC4FZ

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/F54KC4FZP7G4O5ZGHTCZKNU7BE \
  | 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: 2f78a170b97fcdc777263cc595369f09334f487132a6ed9cdac92bc55338f4ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d840bbf5263010372b6fca8c9b0e40acaaeaa4af00f17f365e0cf8acc60979b",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2004-08-05T04:44:38Z",
    "title_canon_sha256": "ab7b0c381099efec52d31ab613d3d4935fed8edb068d4b876bac989796aae01d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0408075",
    "kind": "arxiv",
    "version": 1
  }
}