Pith Number

pith:U5VDDFH4

pith:2018:U5VDDFH4TEI5WI5L3TPFWX23T4

not attested not anchored not stored refs pending

Galactic Calibration of the Tip of the Red Giant Branch

Gary Da Costa, Gisella Clementini, Jeremy Mould

arxiv:1811.00655 v1 · 2018-11-01 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U5VDDFH4TEI5WI5L3TPFWX23T4}

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	2026-05-17T23:53:12.361372Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a76a3194fc9911db23abdcde5b5f5b9f0cf902431ba383aff48f18bba5dad492

Aliases

arxiv: 1811.00655 · arxiv_version: 1811.00655v1 · doi: 10.48550/arxiv.1811.00655 · pith_short_12: U5VDDFH4TEI5 · pith_short_16: U5VDDFH4TEI5WI5L · pith_short_8: U5VDDFH4

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/U5VDDFH4TEI5WI5L3TPFWX23T4 \
  | 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: a76a3194fc9911db23abdcde5b5f5b9f0cf902431ba383aff48f18bba5dad492

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7471f47c3b1d24e93c0a6ea804569bd71b0c798a62d45ceb17d8dffc169b8c23",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-11-01T22:13:44Z",
    "title_canon_sha256": "2b0c90678f70ac95ac5f99e171862a92610c32d0124b91debb774cf93b17a16b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.00655",
    "kind": "arxiv",
    "version": 1
  }
}