Pith Number

pith:42KF7LFM

pith:2015:42KF7LFMSQZYXVSQ6MKY7QSQ7Q

not attested not anchored not stored refs pending

Remark on Calder\'on's problem for the system of elliptic equations

M. Yamamoto, Oleg Imanuvilov

arxiv:1503.06494 v1 · 2015-03-22 · 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{42KF7LFMSQZYXVSQ6MKY7QSQ7Q}

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	2026-05-18T02:20:18.386862Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6945facac94338bd650f3158fc250fc0fd3b72255bc82327c5ff327d1b05d92

Aliases

arxiv: 1503.06494 · arxiv_version: 1503.06494v1 · doi: 10.48550/arxiv.1503.06494 · pith_short_12: 42KF7LFMSQZY · pith_short_16: 42KF7LFMSQZYXVSQ · pith_short_8: 42KF7LFM

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/42KF7LFMSQZYXVSQ6MKY7QSQ7Q \
  | 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: e6945facac94338bd650f3158fc250fc0fd3b72255bc82327c5ff327d1b05d92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9339a78d9e1d5be30dc6ed53a9083a6151fe130b986f29fc88789700734b99e3",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2015-03-22T23:04:23Z",
    "title_canon_sha256": "b6dd3693850df69840a564774a9d4bc0819543e68b06e5c4c2e8083ee34b2e37"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.06494",
    "kind": "arxiv",
    "version": 1
  }
}