Pith Number

pith:KCFMPEME

pith:2026:KCFMPEMETLLCWJ3JOYKF7JEMPZ

not attested not anchored not stored refs pending

Beyond the equation of state: a second-order diagnostic for dynamical dark energy

Bob Osano

arxiv:2606.27356 v1 · 2026-06-25 · 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{KCFMPEMETLLCWJ3JOYKF7JEMPZ}

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	2026-06-26T01:16:19.712461Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

508ac791849ad62b276976145fa48c7e6f4563a504b695387168ab439d24945b

Aliases

arxiv: 2606.27356 · arxiv_version: 2606.27356v1 · doi: 10.48550/arxiv.2606.27356 · pith_short_12: KCFMPEMETLLC · pith_short_16: KCFMPEMETLLCWJ3J · pith_short_8: KCFMPEME

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/KCFMPEMETLLCWJ3JOYKF7JEMPZ \
  | 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: 508ac791849ad62b276976145fa48c7e6f4563a504b695387168ab439d24945b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bf9aab54a56f4d6c7d811a1268fd323c11d66cf987ce8ec00f52c3f49f9f807",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-06-25T17:57:16Z",
    "title_canon_sha256": "c00194bb0b38384929a61654aacd236a921a4d7ab7f67b34d391fc1fb15c6fb2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.27356",
    "kind": "arxiv",
    "version": 1
  }
}