Pith Number

pith:PH3BYLXX

pith:2018:PH3BYLXXZFECDHUW4THDJOEUTU

not attested not anchored not stored refs pending

Investigating the cause of the $\alpha\,$-$\,z$ relation

Jeremy J. Harwood, Leah K. Morabito

arxiv:1807.09793 v1 · 2018-07-25 · astro-ph.GA · 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{PH3BYLXXZFECDHUW4THDJOEUTU}

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	2026-05-18T00:08:37.787048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79f61c2ef7c948219e96e4ce34b8949d338d1a9cec17872b7d3430a8a76542de

Aliases

arxiv: 1807.09793 · arxiv_version: 1807.09793v1 · doi: 10.48550/arxiv.1807.09793 · pith_short_12: PH3BYLXXZFEC · pith_short_16: PH3BYLXXZFECDHUW · pith_short_8: PH3BYLXX

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/PH3BYLXXZFECDHUW4THDJOEUTU \
  | 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: 79f61c2ef7c948219e96e4ce34b8949d338d1a9cec17872b7d3430a8a76542de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1e37ec7ee4299985e6343b1663d400c872f4b92d6340bd96fbbec95688b2f3ba",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-07-25T18:00:10Z",
    "title_canon_sha256": "b0f6bfb7ca6f2d68bf47e498f9e8bdd44bab15b7e9203e3f22c912b28626d9e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.09793",
    "kind": "arxiv",
    "version": 1
  }
}