Pith Number

pith:WHDE6K77

pith:2020:WHDE6K77SA4IACZEM3VJR26NMU

not attested not anchored not stored refs pending

Improved limits for violations of local position invariance from atomic clock comparisons

B. Lipphardt, Chr. Tamm, C. Sanner, E. Peik, H. Shao, J. M. Rahm, N. Huntemann, R. Lange, S. Weyers

arxiv:2010.06620 v2 · 2020-10-13 · physics.atom-ph · gr-qc · hep-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{WHDE6K77SA4IACZEM3VJR26NMU}

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	2026-07-05T02:05:09.200384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1c64f2bff9038800b2466ea98ebcd651c6702462c047333562f2e7b9db469b2

Aliases

arxiv: 2010.06620 · arxiv_version: 2010.06620v2 · doi: 10.48550/arxiv.2010.06620 · pith_short_12: WHDE6K77SA4I · pith_short_16: WHDE6K77SA4IACZE · pith_short_8: WHDE6K77

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/WHDE6K77SA4IACZEM3VJR26NMU \
  | 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: b1c64f2bff9038800b2466ea98ebcd651c6702462c047333562f2e7b9db469b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37d66e914394acf9b3bebc5a288361e53c0522afda78c67ce400e3d656fb867b",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2020-10-13T18:18:30Z",
    "title_canon_sha256": "27b0ad227a28ab5b849b159f27e8b6b46e62d904ba83cb44e149004602b91103"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.06620",
    "kind": "arxiv",
    "version": 2
  }
}