Pith Number

pith:FSFSGW3B

pith:2009:FSFSGW3BKMIYLIBXMTRADUD7AV

not attested not anchored not stored refs pending

Quantum particle production near the big rip revisited

A.B. Batista, F.G. Alvarenga, J.C. Fabris, M. J. S. Houndjo

arxiv:0904.0980 v1 · 2009-04-06 · gr-qc · astro-ph.CO · 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{FSFSGW3BKMIYLIBXMTRADUD7AV}

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	2026-05-18T02:14:07.209019Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c8b235b61531185a03764e201d07f0575e4d429e0d1258a89f63156be00ecc0

Aliases

arxiv: 0904.0980 · arxiv_version: 0904.0980v1 · doi: 10.48550/arxiv.0904.0980 · pith_short_12: FSFSGW3BKMIY · pith_short_16: FSFSGW3BKMIYLIBX · pith_short_8: FSFSGW3B

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/FSFSGW3BKMIYLIBXMTRADUD7AV \
  | 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: 2c8b235b61531185a03764e201d07f0575e4d429e0d1258a89f63156be00ecc0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3bb064408adba0bd7f008f07371c11c8be39e95fa2c6c3ed6e8cc15b95299bd5",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-04-06T18:32:09Z",
    "title_canon_sha256": "1a23b2d12cb9b5599a1605fe7e833698e00e1a8314ce6a0df4ee48b565d1dfe0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0980",
    "kind": "arxiv",
    "version": 1
  }
}