Pith Number

pith:K2QM3CUA

pith:2015:K2QM3CUAR6UH6URO5FZWVYTLFR

not attested not anchored not stored refs pending

X-ray emissivity of old stellar populations: a local group census

Chong Ge, Christine Jones, Q.Daniel Wang, Qiusheng Gu, Ralph P. Kraft, Shawn Roberts, William R. Forman, Xiaojie Xu, Zhiyuan Li

arxiv:1509.05863 v1 · 2015-09-19 · 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{K2QM3CUAR6UH6URO5FZWVYTLFR}

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	2026-05-18T01:29:44.534671Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56a0cd8a808fa87f522ee9736ae26b2c423f40900d5af67d8409b92a7e3f08b4

Aliases

arxiv: 1509.05863 · arxiv_version: 1509.05863v1 · doi: 10.48550/arxiv.1509.05863 · pith_short_12: K2QM3CUAR6UH · pith_short_16: K2QM3CUAR6UH6URO · pith_short_8: K2QM3CUA

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/K2QM3CUAR6UH6URO5FZWVYTLFR \
  | 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: 56a0cd8a808fa87f522ee9736ae26b2c423f40900d5af67d8409b92a7e3f08b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "baa2c7cb0480bcd3d2ef16421d287227afefed16a1b702d7c241e4052b55800b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-09-19T09:27:25Z",
    "title_canon_sha256": "08a4df421fca24a772e172323d405ea429df5238bf319f95e02618a73f00045a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.05863",
    "kind": "arxiv",
    "version": 1
  }
}