Pith Number

pith:QEAC7J2A

pith:2022:QEAC7J2A6PK47S3IC2PGEVXYT5

not attested not anchored not stored refs pending

Using quasar and gamma-ray burst measurements to constrain cosmological dark energy models

Narayan Khadka

arxiv:2204.06118 v1 · 2022-04-12 · astro-ph.CO · gr-qc · hep-ph · 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{QEAC7J2A6PK47S3IC2PGEVXYT5}

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	2026-07-05T04:14:30.313680Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81002fa740f3d5cfcb68169e6256f89f5ee75d08383116789e94c108d82245de

Aliases

arxiv: 2204.06118 · arxiv_version: 2204.06118v1 · doi: 10.48550/arxiv.2204.06118 · pith_short_12: QEAC7J2A6PK4 · pith_short_16: QEAC7J2A6PK47S3I · pith_short_8: QEAC7J2A

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/QEAC7J2A6PK47S3IC2PGEVXYT5 \
  | 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: 81002fa740f3d5cfcb68169e6256f89f5ee75d08383116789e94c108d82245de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0da19dd5e83fd09c78b83cf4eb81141f7cc2336c4274d9e1a89fdd9a5bf16dd1",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph",
      "hep-th"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2022-04-12T23:58:32Z",
    "title_canon_sha256": "23d99a6875aa342dc270ad9861436d8947c7f4be6a37450eb07871535035530f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.06118",
    "kind": "arxiv",
    "version": 1
  }
}