Pith Number

pith:CLH7X6W6

pith:2008:CLH7X6W6LF3LDVG7PJWAXAHAVX

not attested not anchored not stored refs pending

Big rip avoidance via black holes production

Diego Pavon, Julio C. Fabris

arxiv:0806.2521 v2 · 2008-06-16 · gr-qc · astro-ph · 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{CLH7X6W6LF3LDVG7PJWAXAHAVX}

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	2026-05-18T02:15:51.492260Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12cffbfade5976b1d4df7a6c0b80e0adc6d120f36ce081e10561b251fdfabc50

Aliases

arxiv: 0806.2521 · arxiv_version: 0806.2521v2 · doi: 10.48550/arxiv.0806.2521 · pith_short_12: CLH7X6W6LF3L · pith_short_16: CLH7X6W6LF3LDVG7 · pith_short_8: CLH7X6W6

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/CLH7X6W6LF3LDVG7PJWAXAHAVX \
  | 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: 12cffbfade5976b1d4df7a6c0b80e0adc6d120f36ce081e10561b251fdfabc50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2126c7688003a6be02f0916324461d71ebac9b2522c1af690cc180bcd4c1ca78",
    "cross_cats_sorted": [
      "astro-ph",
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2008-06-16T08:30:49Z",
    "title_canon_sha256": "0bc63527922355013b265f986e683ec5dbc623d0024b2cd592dbed3bdcea1d40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.2521",
    "kind": "arxiv",
    "version": 2
  }
}