Pith Number

pith:76LUIYDM

pith:2008:76LUIYDMFJNXBW4SMX6JKYDWGH

not attested not anchored not stored refs pending

Distinguished quantum states in a class of cosmological spacetimes and their Hadamard property

Claudio Dappiaggi, Nicola Pinamonti, Valter Moretti

arxiv:0812.4033 v1 · 2008-12-21 · gr-qc · hep-th · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{76LUIYDMFJNXBW4SMX6JKYDWGH}

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.

Cited by

1 paper in Pith

Lectures on the Bondi--Metzner--Sachs group and related topics in infrared physics

Receipt and verification

First computed	2026-05-18T02:15:04.118136Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff9744606c2a5b70db9265fc95607631d4b6bcadf12186b6b208f12bf8827341

Aliases

arxiv: 0812.4033 · arxiv_version: 0812.4033v1 · doi: 10.48550/arxiv.0812.4033 · pith_short_12: 76LUIYDMFJNX · pith_short_16: 76LUIYDMFJNXBW4S · pith_short_8: 76LUIYDM

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/76LUIYDMFJNXBW4SMX6JKYDWGH \
  | 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: ff9744606c2a5b70db9265fc95607631d4b6bcadf12186b6b208f12bf8827341

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9153da487af897712345f92a6a4f9540f268415d38b4810573b574c21a6faa24",
    "cross_cats_sorted": [
      "hep-th",
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2008-12-21T17:46:23Z",
    "title_canon_sha256": "57bc4653f86d85f8c32ecd9057385dda8fabdd2fb99e9f0f1c68b984211a9561"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.4033",
    "kind": "arxiv",
    "version": 1
  }
}