Pith Number

pith:JPH52AF4

pith:2011:JPH52AF47JSEI6U2FO555W45Z3

not attested not anchored not stored refs pending

All spacetimes beyond Einstein (Obergurgl Lectures)

Frederic P. Schuller

arxiv:1111.4824 v1 · 2011-11-21 · gr-qc · hep-th · math-ph · math.MP

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

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	2026-05-18T04:07:54.972173Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4bcfdd00bcfa64447a9a2bbbdedb9dced76bfbf738585f8b2b9c24937254201d

Aliases

arxiv: 1111.4824 · arxiv_version: 1111.4824v1 · doi: 10.48550/arxiv.1111.4824 · pith_short_12: JPH52AF47JSE · pith_short_16: JPH52AF47JSEI6U2 · pith_short_8: JPH52AF4

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/JPH52AF47JSEI6U2FO555W45Z3 \
  | 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: 4bcfdd00bcfa64447a9a2bbbdedb9dced76bfbf738585f8b2b9c24937254201d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4495ffff40516b7ba9fbc5f36642f3ce756f81a44707550385c8eb764cc2727",
    "cross_cats_sorted": [
      "hep-th",
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-11-21T10:49:34Z",
    "title_canon_sha256": "2f6706491ed9e0744bf59be6eb2680328ec7217dfcf5645911bdc563158d3b5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.4824",
    "kind": "arxiv",
    "version": 1
  }
}