Pith Number

pith:SCB7EJ3S

pith:2016:SCB7EJ3SHZC7Q5XP2TZQWMWYXW

not attested not anchored not stored refs pending

Sparse image reconstruction on the sphere: analysis and synthesis

Christopher G. R. Wallis, Jason D. McEwen, Yves Wiaux

arxiv:1608.00553 v2 · 2016-08-01 · cs.IT · astro-ph.GA · astro-ph.IM · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SCB7EJ3SHZC7Q5XP2TZQWMWYXW}

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	2026-05-18T00:37:57.608588Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9083f227723e45f876efd4f30b32d8bd87a09a82f2bceb4bddec45e2ff45fb7a

Aliases

arxiv: 1608.00553 · arxiv_version: 1608.00553v2 · doi: 10.48550/arxiv.1608.00553 · pith_short_12: SCB7EJ3SHZC7 · pith_short_16: SCB7EJ3SHZC7Q5XP · pith_short_8: SCB7EJ3S

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/SCB7EJ3SHZC7Q5XP2TZQWMWYXW \
  | 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: 9083f227723e45f876efd4f30b32d8bd87a09a82f2bceb4bddec45e2ff45fb7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "095d44c1b9084d17d622067245307c29c6c162c7f0cf482cfb96500fc57b0dd2",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.IM",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2016-08-01T19:55:30Z",
    "title_canon_sha256": "3022692d08fe2e411953f7635aef03e112a9dbad8f67a52c5f546ca79dbe8f9a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.00553",
    "kind": "arxiv",
    "version": 2
  }
}