Pith Number

pith:5M6TVAZN

pith:2011:5M6TVAZNEHPLPTEIVC2UQV7L3U

not attested not anchored not stored refs pending

Reconstruction of coefficients in scalar second-order elliptic equations from knowledge of their solutions

Guillaume Bal, Gunther Uhlmann

arxiv:1111.5051 v1 · 2011-11-21 · 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{5M6TVAZNEHPLPTEIVC2UQV7L3U}

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	2026-05-18T04:07:53.553403Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb3d3a832d21deb7cc88a8b54857ebdd08443d6cf194097a7642f102f9f547cf

Aliases

arxiv: 1111.5051 · arxiv_version: 1111.5051v1 · doi: 10.48550/arxiv.1111.5051 · pith_short_12: 5M6TVAZNEHPL · pith_short_16: 5M6TVAZNEHPLPTEI · pith_short_8: 5M6TVAZN

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/5M6TVAZNEHPLPTEIVC2UQV7L3U \
  | 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: eb3d3a832d21deb7cc88a8b54857ebdd08443d6cf194097a7642f102f9f547cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b0c2739998f03de5f8dff35c01c90d1805b2a45fa4efeed555fe52591bb2c12",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2011-11-21T22:37:04Z",
    "title_canon_sha256": "f64308bf8644d08ff2087a98edc44000a2dc4dbdf55e662e716c00a2793ee3d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.5051",
    "kind": "arxiv",
    "version": 1
  }
}