Pith Number

pith:ZHHNGFCL

pith:2012:ZHHNGFCLKBISBDFWGG7S44HG6C

not attested not anchored not stored refs pending

Yonsei Evolutionary Population Synthesis (YEPS) Model. I. Spectroscopic Evolution of Simple Stellar Populations

Chul Chung, Sang-Yoon Lee, Suk-Jin Yoon, Young-Wook Lee

arxiv:1210.6032 v2 · 2012-10-22 · 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{ZHHNGFCLKBISBDFWGG7S44HG6C}

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	2026-05-18T01:53:44.726078Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9ced3144b5051208cb631bf2e70e6f0bec5141a96933633e23a9bf2a95cf46a

Aliases

arxiv: 1210.6032 · arxiv_version: 1210.6032v2 · doi: 10.48550/arxiv.1210.6032 · pith_short_12: ZHHNGFCLKBIS · pith_short_16: ZHHNGFCLKBISBDFW · pith_short_8: ZHHNGFCL

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/ZHHNGFCLKBISBDFWGG7S44HG6C \
  | 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: c9ced3144b5051208cb631bf2e70e6f0bec5141a96933633e23a9bf2a95cf46a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2608c7a623380bad646e9f88dfe63758bd2419c8faa41905eaa01d0a88b0b56",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-10-22T20:00:01Z",
    "title_canon_sha256": "b64986d00fb285bbd604bbd70c66bf32174c5362ed0d7172c20618cf825cedec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.6032",
    "kind": "arxiv",
    "version": 2
  }
}