Pith Number

pith:XXNPBQVJ

pith:2019:XXNPBQVJU7HUZU7LVNW26H5GSC

not attested not anchored not stored refs pending

Recovery of discontinuous Lam\'e parameters from local dynamic boundary data

Gunther Uhlmann, Maarten V. de Hoop, Peter Caday, Vitaly Katsnelson

arxiv:1903.05553 v1 · 2019-03-13 · 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{XXNPBQVJU7HUZU7LVNW26H5GSC}

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	2026-05-17T23:51:20.636928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bddaf0c2a9a7cf4cd3ebab6daf1fa690a4509f2583a62a1351b63decd3461084

Aliases

arxiv: 1903.05553 · arxiv_version: 1903.05553v1 · doi: 10.48550/arxiv.1903.05553 · pith_short_12: XXNPBQVJU7HU · pith_short_16: XXNPBQVJU7HUZU7L · pith_short_8: XXNPBQVJ

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/XXNPBQVJU7HUZU7LVNW26H5GSC \
  | 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: bddaf0c2a9a7cf4cd3ebab6daf1fa690a4509f2583a62a1351b63decd3461084

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2426dd540578278358ff74fa508cf73a9d28566bf3aef0c3c55ccd8550833b58",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-03-13T15:47:50Z",
    "title_canon_sha256": "69380dbafbde1760a6f35e71091a0ede0b942a061dc7ce45c9f353c1bac525cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.05553",
    "kind": "arxiv",
    "version": 1
  }
}