Pith Number

pith:KPTASDVU

pith:2011:KPTASDVUL7XX2ETPHD4FXBCQVB

not attested not anchored not stored refs pending

Is Dark Energy Falsifiable?

Carl H. Gibson (University of California at San Diego), Rudolph E. Schild (Harvard University)

arxiv:1112.2758 v1 · 2011-12-13 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KPTASDVUL7XX2ETPHD4FXBCQVB}

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	2026-05-18T04:06:32.574742Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53e6090eb45fef7d126f38f85b8450a854d0c8d8055362e8059b61bb852a69d7

Aliases

arxiv: 1112.2758 · arxiv_version: 1112.2758v1 · doi: 10.48550/arxiv.1112.2758 · pith_short_12: KPTASDVUL7XX · pith_short_16: KPTASDVUL7XX2ETP · pith_short_8: KPTASDVU

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/KPTASDVUL7XX2ETPHD4FXBCQVB \
  | 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: 53e6090eb45fef7d126f38f85b8450a854d0c8d8055362e8059b61bb852a69d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e0516fd2c53a1f399b5acadb79cbf1ec0b1e08a76f01ae109d6af3d331adc51",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-12-13T00:27:29Z",
    "title_canon_sha256": "64e715090b34d64c2adfb1ce65e5abeac2735cd57ca733ae98a87489249909e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.2758",
    "kind": "arxiv",
    "version": 1
  }
}