Pith Number

pith:57DAHED6

pith:2021:57DAHED6TGEL3JLYTB5LJMYSHK

not attested not anchored not stored refs pending

A glimpse into Feynman's contributions to the debate on the foundations of quantum mechanics

Adele Naddeo, Marco Di Mauro, Salvatore Esposito

arxiv:2111.00337 v1 · 2021-10-30 · 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{57DAHED6TGEL3JLYTB5LJMYSHK}

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	2026-07-05T03:27:41.423894Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

efc603907e9988bda578987ab4b3123aa3bcf8fd775733b5aae05821bc208571

Aliases

arxiv: 2111.00337 · arxiv_version: 2111.00337v1 · doi: 10.48550/arxiv.2111.00337 · pith_short_12: 57DAHED6TGEL · pith_short_16: 57DAHED6TGEL3JLY · pith_short_8: 57DAHED6

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/57DAHED6TGEL3JLYTB5LJMYSHK \
  | 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: efc603907e9988bda578987ab4b3123aa3bcf8fd775733b5aae05821bc208571

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb6481faf6480b4016ed7296fbdd60350854f92a43a936fa8ae3f091b780748d",
    "cross_cats_sorted": [
      "gr-qc",
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2021-10-30T20:59:56Z",
    "title_canon_sha256": "26357e0233ab41c10cf76e57a3de9b0d8b50e88139f49d3adc6c7a38b0289946"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.00337",
    "kind": "arxiv",
    "version": 1
  }
}