Pith Number

pith:V2EOKVFG

pith:2019:V2EOKVFGRT47XS5DJCX6TG34LH

not attested not anchored not stored refs pending

Direct temporal mode measurement of photon pairs by stimulated emission

Xiaoying Li, Xin Chen, Z. Y. Ou

arxiv:1910.09720 v2 · 2019-10-22 · quant-ph · physics.app-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{V2EOKVFGRT47XS5DJCX6TG34LH}

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	2026-07-05T00:54:30.797702Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ae88e554a68cf9fbcba348afe99b7c59e95bec50a60f9bfa9d81510cec3d8840

Aliases

arxiv: 1910.09720 · arxiv_version: 1910.09720v2 · doi: 10.48550/arxiv.1910.09720 · pith_short_12: V2EOKVFGRT47 · pith_short_16: V2EOKVFGRT47XS5D · pith_short_8: V2EOKVFG

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/V2EOKVFGRT47XS5DJCX6TG34LH \
  | 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: ae88e554a68cf9fbcba348afe99b7c59e95bec50a60f9bfa9d81510cec3d8840

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e463c0f34f18bfaee7bdf5f188dfb28056e7ad09959708f01d7abfc2a727481",
    "cross_cats_sorted": [
      "physics.app-ph",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-10-22T01:39:45Z",
    "title_canon_sha256": "22d1bee750769f0a67f7cffaf8e11f3a878767b75059bd9423a2169d486d8ffc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.09720",
    "kind": "arxiv",
    "version": 2
  }
}