Pith Number

pith:2TPSGGNO

pith:2014:2TPSGGNOV7VJLR4BYMLA54S2OB

not attested not anchored not stored refs pending

On Sobolev instability of the interior problem of tomography

Alexander Katsevich, Alexander Tovbis, Marco Bertola

arxiv:1403.1775 v1 · 2014-03-07 · 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{2TPSGGNOV7VJLR4BYMLA54S2OB}

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	2026-05-18T02:56:52.575962Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4df2319aeafea95c781c3160ef25a7062b611f96bff7b3f010b8b66062b5c3e

Aliases

arxiv: 1403.1775 · arxiv_version: 1403.1775v1 · doi: 10.48550/arxiv.1403.1775 · pith_short_12: 2TPSGGNOV7VJ · pith_short_16: 2TPSGGNOV7VJLR4B · pith_short_8: 2TPSGGNO

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/2TPSGGNOV7VJLR4BYMLA54S2OB \
  | 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: d4df2319aeafea95c781c3160ef25a7062b611f96bff7b3f010b8b66062b5c3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27149f54c4fb4ad751cebf2f23bf1481db5c8096b7c19b1eac34128e3e50ae35",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2014-03-07T15:14:59Z",
    "title_canon_sha256": "d00724318bc3659760e6698494688345297a769b92a7d8a43f710ec7a35a0cb7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.1775",
    "kind": "arxiv",
    "version": 1
  }
}