pith. sign in
Pith Number

pith:P5L7ASQE

pith:2009:P5L7ASQETHAR3BCEFWGPEGC554
not attested not anchored not stored refs pending

Packet Spreading and Einstein Retardation

M. I. Shirokov

arxiv:0904.3180 v1 · 2009-04-21 · quant-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{P5L7ASQETHAR3BCEFWGPEGC554}

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 2026-05-18T02:13:58.612145Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

7f57f04a0499c11d84442d8cf2185def1e15b7ed45d355c1dd5b65f38613d793

Aliases

arxiv: 0904.3180 · arxiv_version: 0904.3180v1 · doi: 10.48550/arxiv.0904.3180 · pith_short_12: P5L7ASQETHAR · pith_short_16: P5L7ASQETHAR3BCE · pith_short_8: P5L7ASQE
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/P5L7ASQETHAR3BCEFWGPEGC554 \
  | 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: 7f57f04a0499c11d84442d8cf2185def1e15b7ed45d355c1dd5b65f38613d793
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "c9475fc1740b849cfd055f83a9f99e7d9a84678df83919b6ecefbff9fdbfe6e2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-04-21T07:53:56Z",
    "title_canon_sha256": "28a276b24292eba3010bbcdb30f877f5b24c9b3f20db4d5b2b7d837dcdab309a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.3180",
    "kind": "arxiv",
    "version": 1
  }
}