Pith Number

pith:FM5UGPAC

pith:2014:FM5UGPACJVSLJTD6VKFO6JFFBJ

not attested not anchored not stored refs pending

Inverse problems for Lorentzian manifolds and non-linear hyperbolic equations

Gunther Uhlmann, Matti Lassas, Yaroslav Kurylev

arxiv:1405.3386 v4 · 2014-05-14 · math.DG · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FM5UGPACJVSLJTD6VKFO6JFFBJ}

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	2026-05-18T00:34:39.649049Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b3b433c024d64b4cc7eaa8aef24a50a4cd17db5d8b80caf83d03f6e50cb0380

Aliases

arxiv: 1405.3386 · arxiv_version: 1405.3386v4 · doi: 10.48550/arxiv.1405.3386 · pith_short_12: FM5UGPACJVSL · pith_short_16: FM5UGPACJVSLJTD6 · pith_short_8: FM5UGPAC

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/FM5UGPACJVSLJTD6VKFO6JFFBJ \
  | 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: 2b3b433c024d64b4cc7eaa8aef24a50a4cd17db5d8b80caf83d03f6e50cb0380

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b829bf71394950964a4a51683ff16ad931870545e72eb7e1cb4ed294bb6c1bb",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-05-14T07:34:16Z",
    "title_canon_sha256": "71449ccaec154c48ad5aa6bccbf71d23b2d76d6dc0be042211fe29c217227d33"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.3386",
    "kind": "arxiv",
    "version": 4
  }
}