Pith Number

pith:FSK2HHH6

pith:1992:FSK2HHH6F3JN7CQLOI5PAL36GF

not attested not anchored not stored refs pending

The Spacetime Approach to Quantum Mechanics

James B. Hartle

arxiv:gr-qc/9210004 v4 · 1992-10-07 · gr-qc · hep-th · 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{FSK2HHH6F3JN7CQLOI5PAL36GF}

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	2026-05-18T00:10:04.820309Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c95a39cfe2ed2df8a0b723af02f7e317558e098cf3e00f64e63a95bb949ce0a

Aliases

arxiv: gr-qc/9210004 · arxiv_version: gr-qc/9210004v4 · doi: 10.48550/arxiv.gr-qc/9210004 · pith_short_12: FSK2HHH6F3JN · pith_short_16: FSK2HHH6F3JN7CQL · pith_short_8: FSK2HHH6

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/FSK2HHH6F3JN7CQLOI5PAL36GF \
  | 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: 2c95a39cfe2ed2df8a0b723af02f7e317558e098cf3e00f64e63a95bb949ce0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "909b8d93ad9596377c353b3213a7bc6d2c411b48f6c366926b244f66ceadebf7",
    "cross_cats_sorted": [
      "hep-th",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "1992-10-07T23:50:56Z",
    "title_canon_sha256": "23a8c092bb7348ade6108111fdab1097b629f2863b6e4eab73e1de8f7a9a3c60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9210004",
    "kind": "arxiv",
    "version": 4
  }
}