Pith Number

pith:PQHUC64A

pith:2021:PQHUC64AOY6DSWQQ3IHPKLKXPG

not attested not anchored not stored refs pending

Stellar loci IV. Red giant stars

Bingqiu Chen, Haibo Yuan, Maosheng Xiang, Ruoyi Zhang, Xiaowei Liu, Yang Huang

arxiv:2109.06390 v1 · 2021-09-14 · 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{PQHUC64AOY6DSWQQ3IHPKLKXPG}

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	2026-07-05T05:11:17.525238Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c0f417b80763c395a10da0ef52d5779a519a2b0daafb2db8f76d819aaa379d6

Aliases

arxiv: 2109.06390 · arxiv_version: 2109.06390v1 · doi: 10.48550/arxiv.2109.06390 · pith_short_12: PQHUC64AOY6D · pith_short_16: PQHUC64AOY6DSWQQ · pith_short_8: PQHUC64A

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/PQHUC64AOY6DSWQQ3IHPKLKXPG \
  | 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: 7c0f417b80763c395a10da0ef52d5779a519a2b0daafb2db8f76d819aaa379d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08be23a95362a86305853eeb2bd3d092d44771db67fb18e4bba7d5cb8af62a2c",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-09-14T01:38:52Z",
    "title_canon_sha256": "4cc67769ad4fe835132484de1a5271dade20bd493c235c8be86c3acecea17137"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.06390",
    "kind": "arxiv",
    "version": 1
  }
}