Pith Number

pith:XY22AXLF

pith:2002:XY22AXLFCRASJX45WCCTAV5HWG

not attested not anchored not stored refs pending

Lectures on supergravity

Friedemann Brandt

arxiv:hep-th/0204035 v4 · 2002-04-03 · hep-th · gr-qc · hep-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{XY22AXLFCRASJX45WCCTAV5HWG}

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	2026-05-18T01:38:49.685560Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be35a05d65144124df9db0853057a7b19c4ae34026acd822e798460135c160ef

Aliases

arxiv: hep-th/0204035 · arxiv_version: hep-th/0204035v4 · doi: 10.48550/arxiv.hep-th/0204035 · pith_short_12: XY22AXLFCRAS · pith_short_16: XY22AXLFCRASJX45 · pith_short_8: XY22AXLF

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/XY22AXLFCRASJX45WCCTAV5HWG \
  | 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: be35a05d65144124df9db0853057a7b19c4ae34026acd822e798460135c160ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8de994f46b7edc59cc2a4350a2937432e26febd39d6c134c351e4e5fd14b0e51",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2002-04-03T15:19:06Z",
    "title_canon_sha256": "bf9bb506b6a67e52012bfe8739a890da4e25582db62add31cd214534986876bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0204035",
    "kind": "arxiv",
    "version": 4
  }
}