Pith Number

pith:UXZGPFAA

pith:2015:UXZGPFAA7RZJTCOB2KIGZVFXXC

not attested not anchored not stored refs pending

Post-Reconstruction Deconvolution of PET Images by Total Generalized Variation Regularization

Beno\^it Macq, John A. Lee, Laurent Jacques, St\'ephanie Gu\'erit

arxiv:1506.04935 v1 · 2015-06-16 · cs.CV · math.OC

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

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	2026-05-18T01:48:05.447299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5f2679400fc729989c1d2906cd4b7b8b7b1c871d1404eddd208194b36e5ae71

Aliases

arxiv: 1506.04935 · arxiv_version: 1506.04935v1 · doi: 10.48550/arxiv.1506.04935 · pith_short_12: UXZGPFAA7RZJ · pith_short_16: UXZGPFAA7RZJTCOB · pith_short_8: UXZGPFAA

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/UXZGPFAA7RZJTCOB2KIGZVFXXC \
  | 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: a5f2679400fc729989c1d2906cd4b7b8b7b1c871d1404eddd208194b36e5ae71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bdd85c55744a92db26004ef7b373e0868ca823a8e3ddccc306a08dfb1ee9e0ee",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2015-06-16T12:19:04Z",
    "title_canon_sha256": "0049ea4ea1d298eca779db9b2db4cbe9039fc4d15b477c83064b1f0af436c6a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.04935",
    "kind": "arxiv",
    "version": 1
  }
}