pith. sign in
Pith Number

pith:TSYLLMBU

pith:2013:TSYLLMBUSUFDXMDUV73ANPW37H
not attested not anchored not stored refs pending

Tradeoff between Smoother and Sooner "Little Rip"

Mariam Bouhmadi-Lopez, Pisin Chen, Yen-Wei Liu

arxiv:1302.6249 v2 · 2013-02-25 · gr-qc · astro-ph.CO · hep-ph · hep-th

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{TSYLLMBUSUFDXMDUV73ANPW37H}

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 2026-05-18T03:11:57.693378Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

9cb0b5b034950a3bb074aff606bedbf9c10b5fcb1ae38226f1c97388882a5a9c

Aliases

arxiv: 1302.6249 · arxiv_version: 1302.6249v2 · doi: 10.48550/arxiv.1302.6249 · pith_short_12: TSYLLMBUSUFD · pith_short_16: TSYLLMBUSUFDXMDU · pith_short_8: TSYLLMBU
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/TSYLLMBUSUFDXMDUV73ANPW37H \
  | 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: 9cb0b5b034950a3bb074aff606bedbf9c10b5fcb1ae38226f1c97388882a5a9c
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "25d71513b8bc6b0393bd42ba34ff173f17f3ab9d02e10ef811735a99506ac44a",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-02-25T21:01:53Z",
    "title_canon_sha256": "a2902f1f95e3ed83a2e7f232a786753a7ac6be6f73d10358ea81d3871d71b66f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.6249",
    "kind": "arxiv",
    "version": 2
  }
}