Pith Number

pith:DPIRFA3I

pith:2015:DPIRFA3I3LFYLAJZGJPWSXY3Y4

not attested not anchored not stored refs pending

Vector and tensor contributions to the curvature perturbation at second order

Karim A. Malik, Pedro Carrilho

arxiv:1507.06922 v3 · 2015-07-24 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DPIRFA3I3LFYLAJZGJPWSXY3Y4}

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	2026-05-18T01:21:13.214454Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bd1128368dacb858139325f695f1bc72d92468b04aa44f2d19985eaef680644

Aliases

arxiv: 1507.06922 · arxiv_version: 1507.06922v3 · doi: 10.48550/arxiv.1507.06922 · pith_short_12: DPIRFA3I3LFY · pith_short_16: DPIRFA3I3LFYLAJZ · pith_short_8: DPIRFA3I

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/DPIRFA3I3LFYLAJZGJPWSXY3Y4 \
  | 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: 1bd1128368dacb858139325f695f1bc72d92468b04aa44f2d19985eaef680644

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56a2549dfa0515f041e6d026c60e9ab5581c4a0857c4832f9ad6c728be41a7e8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-07-24T17:18:50Z",
    "title_canon_sha256": "a5c21ec79478903a80e8fd5cf77d974d6e7558ebeafde725131e24211b50bf97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.06922",
    "kind": "arxiv",
    "version": 3
  }
}