Pith Number

pith:XASKABMS

pith:2018:XASKABMSEKNLGBTHM6IKENQFC5

not attested not anchored not stored refs pending

Optimizing the signal-to-noise ratio of biphoton distribution measurements

Hugo Defienne, Jason W. Fleischer, Matthew Reichert

arxiv:1802.00489 v2 · 2018-01-25 · physics.ins-det · physics.optics · 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{XASKABMSEKNLGBTHM6IKENQFC5}

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	2026-05-18T00:09:16.394638Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b824a00592229ab306676790a23605175b37a10db0f982b3b1ffe61cd3f31945

Aliases

arxiv: 1802.00489 · arxiv_version: 1802.00489v2 · doi: 10.48550/arxiv.1802.00489 · pith_short_12: XASKABMSEKNL · pith_short_16: XASKABMSEKNLGBTH · pith_short_8: XASKABMS

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/XASKABMSEKNLGBTHM6IKENQFC5 \
  | 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: b824a00592229ab306676790a23605175b37a10db0f982b3b1ffe61cd3f31945

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a971d9ea80535966079e2f5034b263ba84df84b599f207603cc91afb1bc463a8",
    "cross_cats_sorted": [
      "physics.optics",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2018-01-25T14:30:24Z",
    "title_canon_sha256": "81fc4d88187a3d678010aacc816164885f733738da99072714b49ae5389b29bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.00489",
    "kind": "arxiv",
    "version": 2
  }
}