Pith Number

pith:Y3VBU7C4

pith:2009:Y3VBU7C434U6T5T4XZXAXDO56K

not attested not anchored not stored refs pending

Spherical collapse in quintessence models with zero speed of sound

Filippo Vernizzi, Guido D'Amico, Jorge Nore\~na, Leonardo Senatore, Paolo Creminelli

arxiv:0911.2701 v2 · 2009-11-14 · astro-ph.CO · gr-qc

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

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.

Cited by

2 papers in Pith

Studying spherical collapse and its implications in the Eddington-inspired Born-Infeld gravity theory

Receipt and verification

First computed	2026-05-18T02:34:05.512044Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6ea1a7c5cdf29e9f67cbe6e0b8dddf28f9cfce493c021b24ed1161d2c568157

Aliases

arxiv: 0911.2701 · arxiv_version: 0911.2701v2 · doi: 10.48550/arxiv.0911.2701 · pith_short_12: Y3VBU7C434U6 · pith_short_16: Y3VBU7C434U6T5T4 · pith_short_8: Y3VBU7C4

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/Y3VBU7C434U6T5T4XZXAXDO56K \
  | 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: c6ea1a7c5cdf29e9f67cbe6e0b8dddf28f9cfce493c021b24ed1161d2c568157

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "354221a2dadd4e932100629b620b1433b6ec9449822ca85e03980e9f902af56b",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-11-14T01:20:23Z",
    "title_canon_sha256": "636bbd22aafbc113821bd5edde96da19d64e568e9e4af46baa511805a9a66b19"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.2701",
    "kind": "arxiv",
    "version": 2
  }
}