Pith Number

pith:OJ4USE3T

pith:2015:OJ4USE3TA4R4ZCDTBCC3BOL4TK

not attested not anchored not stored refs pending

Quantum signature in classical electrodynamics of the free radiation field

Michele Marrocco

arxiv:1505.05276 v1 · 2015-05-20 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OJ4USE3TA4R4ZCDTBCC3BOL4TK}

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	2026-05-18T02:03:58.830696Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72794913730723cc88730885b0b97c9a986c912a5ae33f222fa4968c8ead8b21

Aliases

arxiv: 1505.05276 · arxiv_version: 1505.05276v1 · doi: 10.48550/arxiv.1505.05276 · pith_short_12: OJ4USE3TA4R4 · pith_short_16: OJ4USE3TA4R4ZCDT · pith_short_8: OJ4USE3T

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/OJ4USE3TA4R4ZCDTBCC3BOL4TK \
  | 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: 72794913730723cc88730885b0b97c9a986c912a5ae33f222fa4968c8ead8b21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "916055d25eb21375e3d2d47863cd1e4a925d6499fcbcccba9c2f385c2160b2ca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-05-20T08:14:30Z",
    "title_canon_sha256": "15b689a9b3e14a9ca115623b72cde8b5abefd973f6871f533ac042852e2ec528"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.05276",
    "kind": "arxiv",
    "version": 1
  }
}