Pith Number

pith:G7XE5A3X

pith:2014:G7XE5A3XJCCXT4OMBJNZ4XIL7L

not attested not anchored not stored refs pending

Narrowband biphoton generation in the group delay regime

Luwei Zhao, Shengwang Du, Yumian Su

arxiv:1409.3341 v4 · 2014-09-11 · quant-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{G7XE5A3XJCCXT4OMBJNZ4XIL7L}

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	2026-05-18T01:18:34.144855Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37ee4e8377488579f1cc0a5b9e5d0bfaf9dc040374c50c9696f03902d28392ba

Aliases

arxiv: 1409.3341 · arxiv_version: 1409.3341v4 · doi: 10.48550/arxiv.1409.3341 · pith_short_12: G7XE5A3XJCCX · pith_short_16: G7XE5A3XJCCXT4OM · pith_short_8: G7XE5A3X

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/G7XE5A3XJCCXT4OMBJNZ4XIL7L \
  | 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: 37ee4e8377488579f1cc0a5b9e5d0bfaf9dc040374c50c9696f03902d28392ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d879f844516741ddfeb32da859a3b60265be5e2674ff5afc3c1fcd1234f1b89",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2014-09-11T07:49:22Z",
    "title_canon_sha256": "3f2e4eb7d222321e98fb70ccef75d58aca5ab36f0e0823aedcbfe90eb78d5174"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.3341",
    "kind": "arxiv",
    "version": 4
  }
}