Pith Number

pith:37JPYOUA

pith:2008:37JPYOUAZFOSI75MW4RPKZ5B5A

not attested not anchored not stored refs pending

Sparse image reconstruction for molecular imaging

Alfred O. Hero III, Michael Ting, Raviv Raich

arxiv:0809.4079 v1 · 2008-09-24 · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{37JPYOUAZFOSI75MW4RPKZ5B5A}

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	2026-05-18T02:15:33.856763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dfd2fc3a80c95d247facb722f567a1e826e5fe80c738bd98b92b3e0d46092ca4

Aliases

arxiv: 0809.4079 · arxiv_version: 0809.4079v1 · doi: 10.48550/arxiv.0809.4079 · pith_short_12: 37JPYOUAZFOS · pith_short_16: 37JPYOUAZFOSI75M · pith_short_8: 37JPYOUA

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/37JPYOUAZFOSI75MW4RPKZ5B5A \
  | 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: dfd2fc3a80c95d247facb722f567a1e826e5fe80c738bd98b92b3e0d46092ca4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5d951fd0ed543d640fbe00160e1d8e350f88979c6032e81517dad7163492395",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.data-an",
    "submitted_at": "2008-09-24T04:02:03Z",
    "title_canon_sha256": "c110a68ff3e8bef7512daa038fb208f64a945dcf7ffa685bcac4e76ed63316f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.4079",
    "kind": "arxiv",
    "version": 1
  }
}