Pith Number

pith:2I4X36RR

pith:2018:2I4X36RR3IWPEFCEEAOEY6F333

not attested not anchored not stored refs pending

Astronomical Distance Determination in the Space Age. Secondary distance indicators

Bozena Czerny, Edward Cackett, Elisabeta Lusso, Guido Risaliti, Joseph B. Jensen, Massimo Dall'Ora, Maurizio Salaris, Michal Bejger, Rachael Beaton, R. F. L. Holanda, Saurabh W. Jha, Silvia Toonen, Takeo Minezaki, Yuzuru Yoshii

arxiv:1801.00598 v1 · 2018-01-02 · 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{2I4X36RR3IWPEFCEEAOEY6F333}

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	2026-05-18T00:23:28.044484Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2397dfa31da2cf21444201c4c78bbdee819c56f2f65a602457e90800cd6f353

Aliases

arxiv: 1801.00598 · arxiv_version: 1801.00598v1 · doi: 10.48550/arxiv.1801.00598 · pith_short_12: 2I4X36RR3IWP · pith_short_16: 2I4X36RR3IWPEFCE · pith_short_8: 2I4X36RR

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/2I4X36RR3IWPEFCEEAOEY6F333 \
  | 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: d2397dfa31da2cf21444201c4c78bbdee819c56f2f65a602457e90800cd6f353

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91bf9551713ded9eb88b2278bd313bc4ffee43dfed53b399759d5a5cd36e2223",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-01-02T10:31:50Z",
    "title_canon_sha256": "c3b6e3cce8101840ea1534e49ac4cfa77f81e71042aebe926b09201cb12732cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.00598",
    "kind": "arxiv",
    "version": 1
  }
}