Pith Number

pith:ZYP2KGMQ

pith:2015:ZYP2KGMQHCJDN3E57DUTDRUCOM

not attested not anchored not stored refs pending

Coherence and mode decomposition of weak twin beams

Jan Perina Jr

arxiv:1504.05325 v2 · 2015-04-21 · 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{ZYP2KGMQHCJDN3E57DUTDRUCOM}

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	2026-05-18T01:23:29.354327Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce1fa51990389236ec9df8e931c682732efcbbf77ea63cd2d57a05fa1ef85fc4

Aliases

arxiv: 1504.05325 · arxiv_version: 1504.05325v2 · doi: 10.48550/arxiv.1504.05325 · pith_short_12: ZYP2KGMQHCJD · pith_short_16: ZYP2KGMQHCJDN3E5 · pith_short_8: ZYP2KGMQ

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/ZYP2KGMQHCJDN3E57DUTDRUCOM \
  | 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: ce1fa51990389236ec9df8e931c682732efcbbf77ea63cd2d57a05fa1ef85fc4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e166f0bb1fd4738139a9cd33b81108cf26467fd99cc40aed8e2384f7d9996e1e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-04-21T07:59:23Z",
    "title_canon_sha256": "e9174a45727f650bdd40540ad16aa5c0b86765b324794d34487bfc325ecfe2d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.05325",
    "kind": "arxiv",
    "version": 2
  }
}