Pith Number

pith:TCM3SH5J

pith:2005:TCM3SH5JJJ7SWEFLCKXCF7CW64

not attested not anchored not stored refs pending

Michelson-Morley experiment revisited

Bogus{\l}aw Broda, Marcin Ostrowski

arxiv:physics/0512160 v3 · 2005-12-17 · physics.class-ph · physics.gen-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{TCM3SH5JJJ7SWEFLCKXCF7CW64}

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	2026-05-18T04:34:47.195002Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9899b91fa94a7f2b10ab12ae22fc56f704a58e817a0025368d148624c88a81f5

Aliases

arxiv: physics/0512160 · arxiv_version: physics/0512160v3 · doi: 10.48550/arxiv.physics/0512160 · pith_short_12: TCM3SH5JJJ7S · pith_short_16: TCM3SH5JJJ7SWEFL · pith_short_8: TCM3SH5J

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/TCM3SH5JJJ7SWEFLCKXCF7CW64 \
  | 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: 9899b91fa94a7f2b10ab12ae22fc56f704a58e817a0025368d148624c88a81f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34c320ea039fe613fdb10e8cd9011db0a9f8d601ebdd9f88883853434565e578",
    "cross_cats_sorted": [
      "physics.gen-ph"
    ],
    "license": "",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2005-12-17T08:53:42Z",
    "title_canon_sha256": "63857e63212ffda83239b0f4048754f7593bb8ac1f748be00756d21247f4ab14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0512160",
    "kind": "arxiv",
    "version": 3
  }
}