Pith Number

pith:AL4PRIR7

pith:2006:AL4PRIR7DCO7W2PWWXNNCVDWEO

not attested not anchored not stored refs pending

Approximation and Reconstruction from Attenuated Radon Projections

Christoph Hoeschen, Oleg Tischenko, Yuan Xu

arxiv:math/0603229 v1 · 2006-03-09 · math.NA · cs.NA · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AL4PRIR7DCO7W2PWWXNNCVDWEO}

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	2026-06-03T22:06:19.242747Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02f8f8a23f189dfb69f6b5dad1547623aa331b74c5c449f043abb17dcea68c0f

Aliases

arxiv: math/0603229 · arxiv_version: math/0603229v1 · doi: 10.48550/arxiv.math/0603229 · pith_short_12: AL4PRIR7DCO7 · pith_short_16: AL4PRIR7DCO7W2PW · pith_short_8: AL4PRIR7

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/AL4PRIR7DCO7W2PWWXNNCVDWEO \
  | 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: 02f8f8a23f189dfb69f6b5dad1547623aa331b74c5c449f043abb17dcea68c0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8363aa48597657e3275ed1c708f4509fcc3702c7fa149ad05d67a852e95628bb",
    "cross_cats_sorted": [
      "cs.NA",
      "math.CA"
    ],
    "license": "",
    "primary_cat": "math.NA",
    "submitted_at": "2006-03-09T17:54:04Z",
    "title_canon_sha256": "a52362b6b5348b89fb90737eb46b65c581cfe38cb295ba180ccd244ffb24d970"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0603229",
    "kind": "arxiv",
    "version": 1
  }
}