Pith Number

pith:HWYACEJD

pith:2012:HWYACEJDVNRHTV2JMRWV3SXFPU

not attested not anchored not stored refs pending

Phantom Cosmology without Big Rip Singularity

Artyom V. Astashenok, Artyom V. Yurov, Sergei D. Odintsov, Shin'ichi Nojiri

arxiv:1201.4056 v2 · 2012-01-19 · 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{HWYACEJDVNRHTV2JMRWV3SXFPU}

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	2026-05-18T01:58:46.802424Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3db0011123ab6279d749646d5dcae57d397b2783216c0769fcd9b64c64e7e1ab

Aliases

arxiv: 1201.4056 · arxiv_version: 1201.4056v2 · doi: 10.48550/arxiv.1201.4056 · pith_short_12: HWYACEJDVNRH · pith_short_16: HWYACEJDVNRHTV2J · pith_short_8: HWYACEJD

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/HWYACEJDVNRHTV2JMRWV3SXFPU \
  | 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: 3db0011123ab6279d749646d5dcae57d397b2783216c0769fcd9b64c64e7e1ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "118c41d23ee08bf172ae7a76565b247a59de90e12eaa7e63aad08665680e0195",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-01-19T13:36:58Z",
    "title_canon_sha256": "0eafc635ced0b148bf37cb01fd1814c1a86bcbb15195a986edec619273b6258d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.4056",
    "kind": "arxiv",
    "version": 2
  }
}