Pith Number

pith:M2TM2H5S

pith:2004:M2TM2H5S3K57SHRWSW7AC3OVPT

not attested not anchored not stored refs pending

Optical-fiber source of polarization-entangled photon pairs in the 1550nm telecom band

Jay E. Sharping, Paul L. Voss, Prem Kumar, Xiaoying Li

arxiv:quant-ph/0402191 v3 · 2004-02-25 · 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{M2TM2H5S3K57SHRWSW7AC3OVPT}

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	2026-07-04T16:50:13.620910Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66a6cd1fb2dabbf91e3695be016dd57cc43de118ca5201ce7203a6dd26a62457

Aliases

arxiv: quant-ph/0402191 · arxiv_version: quant-ph/0402191v3 · doi: 10.48550/arxiv.quant-ph/0402191 · pith_short_12: M2TM2H5S3K57 · pith_short_16: M2TM2H5S3K57SHRW · pith_short_8: M2TM2H5S

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/M2TM2H5S3K57SHRWSW7AC3OVPT \
  | 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: 66a6cd1fb2dabbf91e3695be016dd57cc43de118ca5201ce7203a6dd26a62457

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3f04fee04319400371d041fa59f1a43c840977e48bf7c7e97cccb75a1e995b6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2004-02-25T20:54:08Z",
    "title_canon_sha256": "e3f4405c549b742a629d060e27d89e1bd724373ca7583ccadbe781dbb42084bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0402191",
    "kind": "arxiv",
    "version": 3
  }
}