Pith Number

pith:QQIJR6VF

pith:2009:QQIJR6VF27LNUK76SN7WMQBFXR

not attested not anchored not stored refs pending

Interacting agegraphic quintessence dark energy in non-flat universe

A. Bagheri, A. Sheykhi, M.M. Yazdanpanah

arxiv:0909.0302 v2 · 2009-09-02 · hep-th · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QQIJR6VF27LNUK76SN7WMQBFXR}

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	2026-05-18T04:37:20.842183Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

841098faa5d7d6da2bfe937f664025bc6a53c0513c1926b440f6abf6911b2ddb

Aliases

arxiv: 0909.0302 · arxiv_version: 0909.0302v2 · doi: 10.48550/arxiv.0909.0302 · pith_short_12: QQIJR6VF27LN · pith_short_16: QQIJR6VF27LNUK76 · pith_short_8: QQIJR6VF

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/QQIJR6VF27LNUK76SN7WMQBFXR \
  | 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: 841098faa5d7d6da2bfe937f664025bc6a53c0513c1926b440f6abf6911b2ddb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dffcc59404b772700e622742480d3a2973efb66ed7034814d492e1bbdcbacb8a",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-09-02T01:21:17Z",
    "title_canon_sha256": "6fe797253a24ac6e0c3d212439f8c9e4f90fe7d48be7eb89beaa4a15d41ee568"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.0302",
    "kind": "arxiv",
    "version": 2
  }
}