Pith Number

pith:EHFM54GH

pith:2009:EHFM54GH4TLFVLL6VMCXMONRPD

not attested not anchored not stored refs pending

The thawing dark energy dynamics: Can we detect it?

A.A. Sen, M. Sami, S. Sen

arxiv:0907.2814 v3 · 2009-07-16 · astro-ph.CO · gr-qc · 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{EHFM54GH4TLFVLL6VMCXMONRPD}

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	2026-05-18T02:13:02.453880Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21cacef0c7e4d65aad7eab057639b178e4f0aca0081dca09afa497918945e84a

Aliases

arxiv: 0907.2814 · arxiv_version: 0907.2814v3 · doi: 10.48550/arxiv.0907.2814 · pith_short_12: EHFM54GH4TLF · pith_short_16: EHFM54GH4TLFVLL6 · pith_short_8: EHFM54GH

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/EHFM54GH4TLFVLL6VMCXMONRPD \
  | 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: 21cacef0c7e4d65aad7eab057639b178e4f0aca0081dca09afa497918945e84a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6b3690ff4b86aefd309b88451468cbde5c8ab5b2f43560a7bde60a35792c4cc",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-07-16T11:56:11Z",
    "title_canon_sha256": "2528b5e31d15b1e5beaf6dc5052d0d8cf0c14ad4e5e427a54f29325f43c06918"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.2814",
    "kind": "arxiv",
    "version": 3
  }
}