Pith Number

pith:25GI4R5A

pith:2025:25GI4R5ANN5DKOADUFN7VYXS33

not attested not anchored not stored refs pending

The Multiverse: a Philosophical Introduction

Jeremy Butterfield

arxiv:2505.23639 v1 · 2025-05-29 · physics.hist-ph · 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{25GI4R5ANN5DKOADUFN7VYXS33}

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	2026-07-05T11:12:05.021988Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d74c8e47a06b7a353803a15bfae2f2dec95d91a6a17726c1301d3a6e150f407b

Aliases

arxiv: 2505.23639 · arxiv_version: 2505.23639v1 · doi: 10.48550/arxiv.2505.23639 · pith_short_12: 25GI4R5ANN5D · pith_short_16: 25GI4R5ANN5DKOAD · pith_short_8: 25GI4R5A

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/25GI4R5ANN5DKOADUFN7VYXS33 \
  | 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: d74c8e47a06b7a353803a15bfae2f2dec95d91a6a17726c1301d3a6e150f407b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5de2a89ce7b19a082d7f1d7194da2977d648573502e31f07048e3a6dc592bb22",
    "cross_cats_sorted": [
      "gr-qc",
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2025-05-29T16:46:01Z",
    "title_canon_sha256": "6092d686b19ea0f153275229283e259a56bb04e7cee7d6672609e1ef228e5828"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.23639",
    "kind": "arxiv",
    "version": 1
  }
}