Pith Number

pith:A5U2RE7H

pith:2009:A5U2RE7H2JKM73QW34BPU5ROR4

not attested not anchored not stored refs pending

Reduced Hamiltonian for intersecting shells and Hawking radiation

Pietro Menotti

arxiv:0912.3873 v1 · 2009-12-19 · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A5U2RE7H2JKM73QW34BPU5ROR4}

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	2026-05-18T02:33:55.857661Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0769a893e7d254cfee16df02fa762e8f07022c411d636f9419dd2da71c14a299

Aliases

arxiv: 0912.3873 · arxiv_version: 0912.3873v1 · doi: 10.48550/arxiv.0912.3873 · pith_short_12: A5U2RE7H2JKM · pith_short_16: A5U2RE7H2JKM73QW · pith_short_8: A5U2RE7H

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/A5U2RE7H2JKM73QW34BPU5ROR4 \
  | 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: 0769a893e7d254cfee16df02fa762e8f07022c411d636f9419dd2da71c14a299

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c9c523dc5d59a7bc20cd484b50843a12463ffa8670bedf6cd82e4c93e2b776e",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-12-19T08:52:04Z",
    "title_canon_sha256": "0f7cd247ebb4ff56ed81b00f25b990de3d4b408501de1061b8ad9bc3e422a69e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.3873",
    "kind": "arxiv",
    "version": 1
  }
}