Pith Number

pith:GZEJXKXF

pith:2017:GZEJXKXFZH6P2LSJS27QXUHDEQ

not attested not anchored not stored refs pending

Truly unentangled photon pairs without spectral filtering

A.M. Smith, C.C. Tison, J.A. Steidle, J.E. Sipe, M.L. Fanto, M. Liscidini, M. Menotti, P.M. Alsing, P.M. Thomas, S.F. Preble, Z. Vernon

arxiv:1703.10626 v1 · 2017-03-30 · 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{GZEJXKXFZH6P2LSJS27QXUHDEQ}

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	2026-05-18T00:33:43.716549Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

36489baae5c9fcfd2e4996bf0bd0e3241accfa955a420faa89a48f285376741a

Aliases

arxiv: 1703.10626 · arxiv_version: 1703.10626v1 · doi: 10.48550/arxiv.1703.10626 · pith_short_12: GZEJXKXFZH6P · pith_short_16: GZEJXKXFZH6P2LSJ · pith_short_8: GZEJXKXF

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/GZEJXKXFZH6P2LSJS27QXUHDEQ \
  | 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: 36489baae5c9fcfd2e4996bf0bd0e3241accfa955a420faa89a48f285376741a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83929db24e24e97e9ff4ac1c25eb6fc6caef2b6263ab93e7f82b3817141e22cd",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2017-03-30T18:21:17Z",
    "title_canon_sha256": "65e425063724d7a8c576f37889eda8a918f33f4234b251dce3abf1c023bbc038"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.10626",
    "kind": "arxiv",
    "version": 1
  }
}