Pith Number

pith:HEF5LK4C

pith:2012:HEF5LK4CIT3JGGLLARFS5SLC4K

not attested not anchored not stored refs pending

Massive cosmological scalar perturbations

Hamid Reza Sepangi, Nima Khosravi, Shahab Shahidi

arxiv:1202.2767 v3 · 2012-02-13 · 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{HEF5LK4CIT3JGGLLARFS5SLC4K}

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	2026-05-18T03:22:52.326875Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

390bd5ab8244f693196b044b2ec962e2a9ff548bbc1a80c72ad7181987e6b3bd

Aliases

arxiv: 1202.2767 · arxiv_version: 1202.2767v3 · doi: 10.48550/arxiv.1202.2767 · pith_short_12: HEF5LK4CIT3J · pith_short_16: HEF5LK4CIT3JGGLL · pith_short_8: HEF5LK4C

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/HEF5LK4CIT3JGGLLARFS5SLC4K \
  | 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: 390bd5ab8244f693196b044b2ec962e2a9ff548bbc1a80c72ad7181987e6b3bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "700e54e8978df34a9ba4d57a26356cb23203025df17316f599d2026d4aff5e8f",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-02-13T15:43:48Z",
    "title_canon_sha256": "f0d8715dd5490fb0586834fb830dfb8f6aeb3ac05affe8cf47582ae6b620de23"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.2767",
    "kind": "arxiv",
    "version": 3
  }
}