Pith Number

pith:5M4EG6EH

pith:2020:5M4EG6EHGBSCPVPUMKGHCKAWGG

not attested not anchored not stored refs pending

SPISEA: A Python-Based Simple Stellar Population Synthesis Code for Star Clusters

A.K. Gautam, C.Y. Lam, D. Kim, J.R. Lu, K.E. Lockhart, M.W. Hosek Jr, S. Jia

arxiv:2006.06691 v2 · 2020-06-11 · astro-ph.SR · 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{5M4EG6EHGBSCPVPUMKGHCKAWGG}

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

Unveiling the Milky Way with a Gaia DR3 census of OB-type stars within 2 kpc. I. Tracing local Galactic structure, massive star-forming regions and core-collapse supernova progenitors

Receipt and verification

First computed	2026-07-05T01:33:39.538798Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb38437887306427d5f4628c712816319d27891020194f11f41f10df6bfaf1ee

Aliases

arxiv: 2006.06691 · arxiv_version: 2006.06691v2 · doi: 10.48550/arxiv.2006.06691 · pith_short_12: 5M4EG6EHGBSC · pith_short_16: 5M4EG6EHGBSCPVPU · pith_short_8: 5M4EG6EH

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/5M4EG6EHGBSCPVPUMKGHCKAWGG \
  | 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: eb38437887306427d5f4628c712816319d27891020194f11f41f10df6bfaf1ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba58d95b0a7f5f2948fd362a6e5d1e9a24d11700ff0448a5fccbe1f6662a244d",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-06-11T18:00:01Z",
    "title_canon_sha256": "40023103addd34d47a558feebfdc33047582bf9ba419410686fc9b7259d1cb5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.06691",
    "kind": "arxiv",
    "version": 2
  }
}