Pith Number

pith:A2T4PXPX

pith:2012:A2T4PXPX3JKG4BXVSXYP7DOD75

not attested not anchored not stored refs pending

Entanglement-assisted scheme for nondemolition detection of the presence of a single photon

Anton\'in \v{C}ernoch, Karel Lemr, Karol Bartkiewicz, Marek Bula

arxiv:1212.5366 v2 · 2012-12-21 · quant-ph · physics.atom-ph · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A2T4PXPX3JKG4BXVSXYP7DOD75}

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	2026-05-18T03:21:53.944284Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06a7c7ddf7da546e06f595f0ff8dc3ff745134f4d94f19329c057f96033e9d91

Aliases

arxiv: 1212.5366 · arxiv_version: 1212.5366v2 · doi: 10.48550/arxiv.1212.5366 · pith_short_12: A2T4PXPX3JKG · pith_short_16: A2T4PXPX3JKG4BXV · pith_short_8: A2T4PXPX

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/A2T4PXPX3JKG4BXVSXYP7DOD75 \
  | 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: 06a7c7ddf7da546e06f595f0ff8dc3ff745134f4d94f19329c057f96033e9d91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bda0c4dd2b541ca4810835af1778c41dadde9e26a0f11e553268fc6098d96a0e",
    "cross_cats_sorted": [
      "physics.atom-ph",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-12-21T09:25:58Z",
    "title_canon_sha256": "085dfad02c14d94114aee66203211533c76f19954a57cec1fe6f7dd74ca6493d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.5366",
    "kind": "arxiv",
    "version": 2
  }
}