Pith Number

pith:4HMKHZ6R

pith:2013:4HMKHZ6RLLP4PZZTFQBUPKUOJU

not attested not anchored not stored refs pending

Testing the Equivalence Principle with Unstable Particles

D.E. Krause, D. Sudarsky, E. Fischbach, H. Hernandez-Coronado, Y. Bonder, Z. Rohrbach

arxiv:1305.2450 v3 · 2013-05-10 · gr-qc · 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{4HMKHZ6RLLP4PZZTFQBUPKUOJU}

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	2026-05-18T03:20:08.946839Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1d8a3e7d15adfc7e7332c0347aa8e4d3872abe14ce5e4c36d123f11e089143e

Aliases

arxiv: 1305.2450 · arxiv_version: 1305.2450v3 · doi: 10.48550/arxiv.1305.2450 · pith_short_12: 4HMKHZ6RLLP4 · pith_short_16: 4HMKHZ6RLLP4PZZT · pith_short_8: 4HMKHZ6R

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/4HMKHZ6RLLP4PZZTFQBUPKUOJU \
  | 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: e1d8a3e7d15adfc7e7332c0347aa8e4d3872abe14ce5e4c36d123f11e089143e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70f5c80fbdf0addbb7fc1a1d6bef5bb69d7984b9a15aa240b0a97eed6b0850b9",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-05-10T22:33:05Z",
    "title_canon_sha256": "222b84c115baafce56a9c65197ae2a14e69e6a96c53ac5d0d800e660ac69e5ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.2450",
    "kind": "arxiv",
    "version": 3
  }
}