Pith Number

pith:RIJVBLWI

pith:2014:RIJVBLWI6RCAZAHLO2BABMOL3X

not attested not anchored not stored refs pending

Singular value decomposition of a finite Hilbert transform defined on several intervals and the interior problem of tomography: the Riemann-Hilbert problem approach

Alexander Katsevich, Alex Tovbis, Marco Bertola

arxiv:1402.0216 v2 · 2014-02-02 · math.SP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RIJVBLWI6RCAZAHLO2BABMOL3X}

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	2026-05-18T02:56:58.145189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a1350aec8f4440c80eb768200b1cbddcc9a31ea285daf98faaf996b14f829bd

Aliases

arxiv: 1402.0216 · arxiv_version: 1402.0216v2 · doi: 10.48550/arxiv.1402.0216 · pith_short_12: RIJVBLWI6RCA · pith_short_16: RIJVBLWI6RCAZAHL · pith_short_8: RIJVBLWI

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/RIJVBLWI6RCAZAHLO2BABMOL3X \
  | 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: 8a1350aec8f4440c80eb768200b1cbddcc9a31ea285daf98faaf996b14f829bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4714116542ce88e9791e9bb8742eac31742d4ab4c62d3a9604900e3c0fcf7a35",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2014-02-02T17:28:59Z",
    "title_canon_sha256": "607bffba59e7b1d276d4504be2b20cadab8e46070abf6b05e67b323713ae231c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.0216",
    "kind": "arxiv",
    "version": 2
  }
}