Pith Number

pith:LX3BXA6H

pith:2011:LX3BXA6HLIAUJ7L2E6OBA4ZJTI

not attested not anchored not stored refs pending

Fast reconstruction algorithms for the thermoacoustic tomography in certain domains with cylindrical or spherical symmetries

Leonid Kunyansky

arxiv:1102.1413 v1 · 2011-02-07 · 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{LX3BXA6HLIAUJ7L2E6OBA4ZJTI}

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	2026-05-18T04:29:54.367947Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5df61b83c75a0144fd7a279c1073299a3a4d372bfbec1a4e5e01ef6a9ea6fb92

Aliases

arxiv: 1102.1413 · arxiv_version: 1102.1413v1 · doi: 10.48550/arxiv.1102.1413 · pith_short_12: LX3BXA6HLIAU · pith_short_16: LX3BXA6HLIAUJ7L2 · pith_short_8: LX3BXA6H

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/LX3BXA6HLIAUJ7L2E6OBA4ZJTI \
  | 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: 5df61b83c75a0144fd7a279c1073299a3a4d372bfbec1a4e5e01ef6a9ea6fb92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e909e848ca35b47aacdd4ebfb39d855fa0a99a7e5a7aa6fd772eeb1cc50e762",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2011-02-07T20:52:37Z",
    "title_canon_sha256": "43bc899583de22808242deb7c1237f817438f64237c982172615f84969d18ca5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.1413",
    "kind": "arxiv",
    "version": 1
  }
}