Pith Number

pith:4IURIH6A

pith:2007:4IURIH6AOXNLWCDBJEM3BIGUWL

not attested not anchored not stored refs pending

Distribution of Time-Energy Entanglement over 100 km fiber using superconducting single-photon detectors

Carsten Langrock, Hiroki Takesue, M. M. Fejer, Qiang Zhang, Sae Woo Nam, Xiuping Xie, Yoshihisa Yamamoto

arxiv:0712.4084 v1 · 2007-12-25 · 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{4IURIH6AOXNLWCDBJEM3BIGUWL}

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	2026-07-04T17:07:22.407386Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e229141fc075dabb08614919b0a0d4b2c08b64f795dae1a3744fec3c3b1b3a83

Aliases

arxiv: 0712.4084 · arxiv_version: 0712.4084v1 · doi: 10.48550/arxiv.0712.4084 · pith_short_12: 4IURIH6AOXNL · pith_short_16: 4IURIH6AOXNLWCDB · pith_short_8: 4IURIH6A

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/4IURIH6AOXNLWCDBJEM3BIGUWL \
  | 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: e229141fc075dabb08614919b0a0d4b2c08b64f795dae1a3744fec3c3b1b3a83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ebeef241146299304c67371e47294468de6032323004817028bff0b789bbbb0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2007-12-25T20:30:29Z",
    "title_canon_sha256": "37446c67fc6319c4af8808bf8dc09f0d3fa2d6110efcf5b6f4fa9233b4986a86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0712.4084",
    "kind": "arxiv",
    "version": 1
  }
}