Pith Number

pith:KUYFTROA

pith:2013:KUYFTROAUJDY4LCGDZNZXNP2OL

not attested not anchored not stored refs pending

A reflection approach to the broken ray transform

Joonas Ilmavirta

arxiv:1306.0341 v2 · 2013-06-03 · math.DG · 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{KUYFTROAUJDY4LCGDZNZXNP2OL}

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	2026-05-18T01:12:18.949989Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

553059c5c0a2478e2c461e5b9bb5fa72f59727f707958a564e34f8827be3db1f

Aliases

arxiv: 1306.0341 · arxiv_version: 1306.0341v2 · doi: 10.48550/arxiv.1306.0341 · pith_short_12: KUYFTROAUJDY · pith_short_16: KUYFTROAUJDY4LCG · pith_short_8: KUYFTROA

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/KUYFTROAUJDY4LCGDZNZXNP2OL \
  | 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: 553059c5c0a2478e2c461e5b9bb5fa72f59727f707958a564e34f8827be3db1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9ac5df2fda12982bde3cb4bb24d47e784bd04f31478039931ca9165a18fc6ee",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-06-03T09:26:01Z",
    "title_canon_sha256": "5239484017ddb93881798f929ea372751a8992273393bee7bb3bde456d6e14de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.0341",
    "kind": "arxiv",
    "version": 2
  }
}