Pith Number

pith:4AWCDCVL

pith:2002:4AWCDCVLLYA5LSUHA464FO5SPC

not attested not anchored not stored refs pending

Proposal for a New Michelson-Morley Experiment Using a Single Whispering Spherical Mode Resonator

James David Anstie, John Gideon Hartnett, Michael Edmund Tobar

arxiv:gr-qc/0207067 v1 · 2002-07-17 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4AWCDCVLLYA5LSUHA464FO5SPC}

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	2026-05-18T01:39:23.580130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e02c218aab5e01d5ca87073dc2bbb278bae40f160915ad8d27c4ccdf083b4fa5

Aliases

arxiv: gr-qc/0207067 · arxiv_version: gr-qc/0207067v1 · doi: 10.48550/arxiv.gr-qc/0207067 · pith_short_12: 4AWCDCVLLYA5 · pith_short_16: 4AWCDCVLLYA5LSUH · pith_short_8: 4AWCDCVL

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/4AWCDCVLLYA5LSUHA464FO5SPC \
  | 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: e02c218aab5e01d5ca87073dc2bbb278bae40f160915ad8d27c4ccdf083b4fa5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a2b9f3e82f7780169ce54ef0a0a7cc8a2c35a9a87dd2b01a8a5c948922886cf",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2002-07-17T23:51:25Z",
    "title_canon_sha256": "19818fa17ce846e17ed62650c7ba4a13c25038a7faef7433880b6a84a37188b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0207067",
    "kind": "arxiv",
    "version": 1
  }
}