Pith Number

pith:KC6IFLTI

pith:2009:KC6IFLTIKB2DWXLP6LOBGCYTJJ

not attested not anchored not stored refs pending

A note on observational signatures in superluminal unified dark matter models

Tsutomu Kobayashi, Yuko Urakawa

arxiv:0907.1191 v3 · 2009-07-07 · astro-ph.CO · 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{KC6IFLTIKB2DWXLP6LOBGCYTJJ}

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	2026-05-18T04:25:51.163493Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50bc82ae6850743b5d6ff2dc130b134a7e24bde8381f7932018b569e965fa3ce

Aliases

arxiv: 0907.1191 · arxiv_version: 0907.1191v3 · doi: 10.48550/arxiv.0907.1191 · pith_short_12: KC6IFLTIKB2D · pith_short_16: KC6IFLTIKB2DWXLP · pith_short_8: KC6IFLTI

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/KC6IFLTIKB2DWXLP6LOBGCYTJJ \
  | 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: 50bc82ae6850743b5d6ff2dc130b134a7e24bde8381f7932018b569e965fa3ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7eecd6c74422498da460ea32c5dea63748514f10c24dd5dc3405d9f28c8fd3b0",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-07-07T11:11:34Z",
    "title_canon_sha256": "4b6875ba1f3cead94fb1078379e77debf06e5411afce0a859c19f80ab98cdf56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.1191",
    "kind": "arxiv",
    "version": 3
  }
}