Pith Number

pith:IGUXUBI4

pith:2021:IGUXUBI4C4BAP3M6B56BXXUDMZ

not attested not anchored not stored refs pending

Signature of a massive rotating metal-poor star imprinted in the Phoenix stellar stream

Alexander P. Ji, Andrew B. Pace, Andrew R. Casey, Daniel B. Zucker, Denis Erkal, Dougal Mackey, Gary S. Da Costa, Geraint F. Lewis, Jeffrey D. Simpson, Joss Bland-Hawthorn, Kyler Kuehn, Lara Cullinane, Sarah L. Martell, Sergey E. Koposov, Terese T. Hansen, Ting S. Li

arxiv:2109.03948 v1 · 2021-09-08 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IGUXUBI4C4BAP3M6B56BXXUDMZ}

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	2026-07-05T03:32:17.445156Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41a97a051c170207ed9e0f7c1bde83667518be12f409d4baa586d7a61f0869c2

Aliases

arxiv: 2109.03948 · arxiv_version: 2109.03948v1 · doi: 10.48550/arxiv.2109.03948 · pith_short_12: IGUXUBI4C4BA · pith_short_16: IGUXUBI4C4BAP3M6 · pith_short_8: IGUXUBI4

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/IGUXUBI4C4BAP3M6B56BXXUDMZ \
  | 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: 41a97a051c170207ed9e0f7c1bde83667518be12f409d4baa586d7a61f0869c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ced55694662893915c224f794eac7b731ddb4d89c2d07f4972f4fa4b7a7639c",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-09-08T22:09:17Z",
    "title_canon_sha256": "4d6a15b77b339a5b94f3c3aaf98b3100883025238df2d2de079abe971b117108"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.03948",
    "kind": "arxiv",
    "version": 1
  }
}