Pith Number

pith:2JYKTPBA

pith:2025:2JYKTPBAUPMRYLBSIT3K3DWTYW

not attested not anchored not stored refs pending

A plug-and-play solution for characterizing two-way optical frequency transfer over free-space

Alexander Kuhl, Fabian Steinlechner, Jingxian Ji, Jochen Kronj\"ager, Markus Leipe, Markus Rothe, Sebastian Koke, Shambo Mukherjee

arxiv:2502.02161 v3 · 2025-02-04 · physics.optics · physics.ins-det

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2JYKTPBAUPMRYLBSIT3K3DWTYW}

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	2026-07-05T12:07:58.098505Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d270a9bc20a3d91c2c3244f6ad8ed3c5832afd7461a2b052e4c1964b97be984b

Aliases

arxiv: 2502.02161 · arxiv_version: 2502.02161v3 · doi: 10.48550/arxiv.2502.02161 · pith_short_12: 2JYKTPBAUPMR · pith_short_16: 2JYKTPBAUPMRYLBS · pith_short_8: 2JYKTPBA

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/2JYKTPBAUPMRYLBSIT3K3DWTYW \
  | 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: d270a9bc20a3d91c2c3244f6ad8ed3c5832afd7461a2b052e4c1964b97be984b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38babca237a0fe66b0f237bf9861dd8562cc86085cb5ac0f12e57b46ebf68d36",
    "cross_cats_sorted": [
      "physics.ins-det"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2025-02-04T09:37:20Z",
    "title_canon_sha256": "e58c981d2c946e28ffe0b6d4737c94cb4b1730786a601886fa75ef3a395c3862"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.02161",
    "kind": "arxiv",
    "version": 3
  }
}