Pith Number

pith:QPZX6LSZ

pith:2008:QPZX6LSZBXCSKSXYBRDHDGJPRY

not attested not anchored not stored refs pending

Spectrophotometric properties of pre-main sequence stars: the Epsilon Chamaeleontis cluster

A-Ran Lyo, M. S. Bessell, Warrick A. Lawson

arxiv:0807.0935 v1 · 2008-07-07 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QPZX6LSZBXCSKSXYBRDHDGJPRY}

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	2026-07-04T17:11:40.575562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83f37f2e590dc5254af80c4671992f8e2045b8f0b7b6de6e53ef3b2b1ebbe681

Aliases

arxiv: 0807.0935 · arxiv_version: 0807.0935v1 · doi: 10.48550/arxiv.0807.0935 · pith_short_12: QPZX6LSZBXCS · pith_short_16: QPZX6LSZBXCSKSXY · pith_short_8: QPZX6LSZ

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/QPZX6LSZBXCSKSXYBRDHDGJPRY \
  | 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: 83f37f2e590dc5254af80c4671992f8e2045b8f0b7b6de6e53ef3b2b1ebbe681

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62dc3436e9f4d1896f233160440800596d20fc7d9081f96de369757d34a62c17",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-07-07T01:59:55Z",
    "title_canon_sha256": "3118b69405b44ccdf5f5787470c6cd9c014d274f6418d23ab815198c3ca78626"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.0935",
    "kind": "arxiv",
    "version": 1
  }
}