Pith Number

pith:AFOAQEJM

pith:2013:AFOAQEJMFFB2KKMMVOZY6XNKI3

not attested not anchored not stored refs pending

Massless scalar field in de Sitter spacetime: unitary quantum time evolution

Daniel Martin-de Blas, Guillermo A. Mena Marugan, Jeronimo Cortez, Jose M. Velhinho

arxiv:1301.4920 v2 · 2013-01-21 · 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{AFOAQEJMFFB2KKMMVOZY6XNKI3}

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	2026-05-18T01:52:05.047134Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

015c08112c2943a5298cabb38f5daa46d19fe4bc6d1f076d93a0e9364e5f20a5

Aliases

arxiv: 1301.4920 · arxiv_version: 1301.4920v2 · doi: 10.48550/arxiv.1301.4920 · pith_short_12: AFOAQEJMFFB2 · pith_short_16: AFOAQEJMFFB2KKMM · pith_short_8: AFOAQEJM

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/AFOAQEJMFFB2KKMMVOZY6XNKI3 \
  | 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: 015c08112c2943a5298cabb38f5daa46d19fe4bc6d1f076d93a0e9364e5f20a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "086532a7601419aef21db8f7206ae59fc2c564afadc82fac1fb659a0c640a62c",
    "cross_cats_sorted": [
      "hep-th",
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-01-21T16:45:39Z",
    "title_canon_sha256": "2f5fbcd839615443be092cb3049d0ddb97db8692f3cbf2e9bb9a030c02881f0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.4920",
    "kind": "arxiv",
    "version": 2
  }
}