Pith Number

pith:7B7J5DXO

pith:2020:7B7J5DXOTVRKHQTHIMYHLNV5MX

not attested not anchored not stored refs pending

Stellar X-ray activity across the Hertzsprung-Russell diagram. I. Catalogs

Jifeng Liu, Lin He, Song Wang, Yu Bai

arxiv:2009.02648 v1 · 2020-09-06 · astro-ph.SR · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7B7J5DXOTVRKHQTHIMYHLNV5MX}

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	2026-07-05T01:44:19.640955Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f87e9e8eee9d62a3c267433075b6bd65ef1dad3e7942605079fd57826619fac3

Aliases

arxiv: 2009.02648 · arxiv_version: 2009.02648v1 · doi: 10.48550/arxiv.2009.02648 · pith_short_12: 7B7J5DXOTVRK · pith_short_16: 7B7J5DXOTVRKHQTH · pith_short_8: 7B7J5DXO

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/7B7J5DXOTVRKHQTHIMYHLNV5MX \
  | 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: f87e9e8eee9d62a3c267433075b6bd65ef1dad3e7942605079fd57826619fac3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79cc68d48e92a0df83817d62214f50db98cc9592b30393307cc47ee23f217f75",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-09-06T05:36:52Z",
    "title_canon_sha256": "34e02d2bf4c674c53aa57e59e81cbcda0ac7e59632190e4bd73af28c1735f0cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.02648",
    "kind": "arxiv",
    "version": 1
  }
}