Pith Number

pith:CFIAVDAK

pith:2025:CFIAVDAKPUEBGDN72QHIXP2WEQ

not attested not anchored not stored refs pending

The QTF-Backbone: Proposal for a Nationwide Optical Fibre Backbone in Germany for Quantum Technology and Time and Frequency Metrology

DFN), Dieter Meschede (University of Bonn), Education Network, Harald Schnatz (Physikalisch-Technische Bundesanstalt), Jochen Kronj\"ager (Physikalisch-Technische Bundesanstalt), Klaus Blaum (Max Planck Institute for Nuclear Physics), Peter Kaufmann (German National Research, Stefan K\"uck (Physikalisch-Technische Bundesanstalt), Stephan Schiller (Heinrich Heine University D\"usseldorf), Susanne Naegele-Jackson (Friedrich-Alexander-Universit\"at Erlangen-N\"urnberg), Tara Cubel Liebisch (Physikalisch-Technische Bundesanstalt)

arxiv:2506.03998 v2 · 2025-06-04 · physics.ins-det · physics.atom-ph · physics.geo-ph · 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{CFIAVDAKPUEBGDN72QHIXP2WEQ}

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	2026-07-05T11:19:53.436100Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

11500a8c0a7d08130dbfd40e8bbf562409f0d8851c108d6c9425c71a63534398

Aliases

arxiv: 2506.03998 · arxiv_version: 2506.03998v2 · doi: 10.48550/arxiv.2506.03998 · pith_short_12: CFIAVDAKPUEB · pith_short_16: CFIAVDAKPUEBGDN7 · pith_short_8: CFIAVDAK

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/CFIAVDAKPUEBGDN72QHIXP2WEQ \
  | 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: 11500a8c0a7d08130dbfd40e8bbf562409f0d8851c108d6c9425c71a63534398

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12dfc00e9b6fbef53c3a6af7525ed17148cb87e36e7e1668e638987a23dfba14",
    "cross_cats_sorted": [
      "physics.atom-ph",
      "physics.geo-ph",
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2025-06-04T14:27:50Z",
    "title_canon_sha256": "e77c89bcd57c55ff24dca2545b1c191f2248841abc8eecc8e43dce302c78d2a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.03998",
    "kind": "arxiv",
    "version": 2
  }
}