Pith Number

pith:K4OXFOQP

pith:2009:K4OXFOQPK6MVLQPKIPO66UPNGT

not attested not anchored not stored refs pending

Dirac-Born-Infeld and k-inflation: the CMB anisotropies from string theory

Christophe Ringeval

arxiv:0910.2167 v1 · 2009-10-12 · astro-ph.CO · gr-qc · hep-ph · 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{K4OXFOQPK6MVLQPKIPO66UPNGT}

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	2026-05-18T03:56:22.955751Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

571d72ba0f579955c1ea43ddef51ed34ea4283ebdb5f48df12fab45348c2f637

Aliases

arxiv: 0910.2167 · arxiv_version: 0910.2167v1 · doi: 10.48550/arxiv.0910.2167 · pith_short_12: K4OXFOQPK6MV · pith_short_16: K4OXFOQPK6MVLQPK · pith_short_8: K4OXFOQP

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/K4OXFOQPK6MVLQPKIPO66UPNGT \
  | 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: 571d72ba0f579955c1ea43ddef51ed34ea4283ebdb5f48df12fab45348c2f637

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "100a0668133a97483ad4baf04e8814a98e33a51eeace202508f323246202ce11",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-10-12T14:18:14Z",
    "title_canon_sha256": "75b13331c3885d1adcff3af2fd199402864b0aea3d1924e58a145273901a5331"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.2167",
    "kind": "arxiv",
    "version": 1
  }
}