Pith Number

pith:4X77TFXM

pith:2018:4X77TFXM6ASQS6PUJE3LTBYL43

not attested not anchored not stored refs pending

Yes, Aboriginal Australians Can and Did Discover the Variability of Betelgeuse

Bradley E. Schaefer

arxiv:1808.01862 v1 · 2018-06-26 · physics.hist-ph · astro-ph.SR · physics.pop-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4X77TFXM6ASQS6PUJE3LTBYL43}

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.

Cited by

1 paper in Pith

Echoes of Star Stories: Integrating Indigenous narratives into modern stellar astrophysics

Receipt and verification

First computed	2026-05-18T00:08:49.415094Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5fff996ecf0250979f44936b9870be6cecedebb7d24a7ed77e98db650f15585

Aliases

arxiv: 1808.01862 · arxiv_version: 1808.01862v1 · doi: 10.48550/arxiv.1808.01862 · pith_short_12: 4X77TFXM6ASQ · pith_short_16: 4X77TFXM6ASQS6PU · pith_short_8: 4X77TFXM

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/4X77TFXM6ASQS6PUJE3LTBYL43 \
  | 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: e5fff996ecf0250979f44936b9870be6cecedebb7d24a7ed77e98db650f15585

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cafb9ba834a0d69326274ccc892dc7e98dd55a8b092a5e42ea753c063c77139",
    "cross_cats_sorted": [
      "astro-ph.SR",
      "physics.pop-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2018-06-26T11:38:40Z",
    "title_canon_sha256": "cacfb7bdc2fd3a5bc842b8c6db6d8e39908a913885ea3b38006a1916f9c1596b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.01862",
    "kind": "arxiv",
    "version": 1
  }
}