Pith Number

pith:M7LUYFU4

pith:2013:M7LUYFU4SAT6P66TKNCIUNGBFW

not attested not anchored not stored refs pending

Numerical implementation of geodesic X-ray transforms and their inversion

Fran\c{c}ois Monard

arxiv:1309.6042 v2 · 2013-09-24 · math.DG · math.AP · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M7LUYFU4SAT6P66TKNCIUNGBFW}

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	2026-05-18T02:54:07.109512Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67d74c169c9027e7fbd353448a34c12d95309ad26f07d2fd9b1e881af43d897b

Aliases

arxiv: 1309.6042 · arxiv_version: 1309.6042v2 · doi: 10.48550/arxiv.1309.6042 · pith_short_12: M7LUYFU4SAT6 · pith_short_16: M7LUYFU4SAT6P66T · pith_short_8: M7LUYFU4

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/M7LUYFU4SAT6P66TKNCIUNGBFW \
  | 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: 67d74c169c9027e7fbd353448a34c12d95309ad26f07d2fd9b1e881af43d897b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f12d7c78b2ec8bcdbd33ecbe872e1cc1ee853905b6f4d0419857e149deacacba",
    "cross_cats_sorted": [
      "math.AP",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-09-24T04:18:52Z",
    "title_canon_sha256": "6afe25084b160d76d8a0bf32a04b5d4ec21c0d548b40326cbab083a1f6bd2d84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.6042",
    "kind": "arxiv",
    "version": 2
  }
}