Pith Number

pith:YWDBVZVW

pith:2013:YWDBVZVWBYR5L3VU2SBG2ZPS45

not attested not anchored not stored refs pending

Multi-Colour Quantum Metrology with Entangled Photons

Alex McMillan, Alex S. Clark, Bryn Bell, John G. Rarity, Srikanth Kannan, William J. Wadsworth

arxiv:1308.2527 v1 · 2013-08-12 · 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{YWDBVZVWBYR5L3VU2SBG2ZPS45}

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	2026-05-18T03:14:18.986371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5861ae6b60e23d5eeb4d4826d65f2e77584825d2d095ecead9106e441c4edde

Aliases

arxiv: 1308.2527 · arxiv_version: 1308.2527v1 · doi: 10.48550/arxiv.1308.2527 · pith_short_12: YWDBVZVWBYR5 · pith_short_16: YWDBVZVWBYR5L3VU · pith_short_8: YWDBVZVW

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/YWDBVZVWBYR5L3VU2SBG2ZPS45 \
  | 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: c5861ae6b60e23d5eeb4d4826d65f2e77584825d2d095ecead9106e441c4edde

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6696495441cdf970f30c6995cc38904fcbbe1b7d613eca18a7b780f038460d37",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-08-12T11:37:01Z",
    "title_canon_sha256": "df29a911c885aacda32f4b6e6b44e449bb439660d8cc8e49770548b4246d4f71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.2527",
    "kind": "arxiv",
    "version": 1
  }
}