Pith Number

pith:U6HK4HD6

pith:2010:U6HK4HD6QOM2WFZ6JKCB3JOH4C

not attested not anchored not stored refs pending

Global uniqueness and reconstruction for the multi-channel Gel'fand-Calder\'on inverse problem in two dimensions

Matteo Santacesaria (CMAP), Roman Novikov (CMAP)

arxiv:1012.4667 v3 · 2010-12-21 · math.AP · 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{U6HK4HD6QOM2WFZ6JKCB3JOH4C}

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	2026-05-18T04:18:53.126406Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a78eae1c7e8399ab173e4a841da5c7e0bf0c769a077649d19a0e679deb28b469

Aliases

arxiv: 1012.4667 · arxiv_version: 1012.4667v3 · doi: 10.48550/arxiv.1012.4667 · pith_short_12: U6HK4HD6QOM2 · pith_short_16: U6HK4HD6QOM2WFZ6 · pith_short_8: U6HK4HD6

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/U6HK4HD6QOM2WFZ6JKCB3JOH4C \
  | 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: a78eae1c7e8399ab173e4a841da5c7e0bf0c769a077649d19a0e679deb28b469

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a92de17970f7c3744eddbe09e586088d87a997ff42c5c580c28b90f812519786",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2010-12-21T14:20:46Z",
    "title_canon_sha256": "2c28ad29ea2ae6df58de9c8248b3ed0a02be6c7b099d213b137b2dd182a93f85"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.4667",
    "kind": "arxiv",
    "version": 3
  }
}