Pith Number

pith:7D3JPYCG

pith:2008:7D3JPYCGOIXOAEEIGAXTPIIH4I

not attested not anchored not stored refs pending

Optical Spectroscopic Observations of CI Camelopardalis

Hengrong Hang (PMO), Jingzhi Yan, Qingzhong Liu

arxiv:0806.4229 v1 · 2008-06-26 · 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{7D3JPYCGOIXOAEEIGAXTPIIH4I}

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	2026-07-04T15:45:13.430989Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8f697e046722ee01088302f37a107e218bc1f419f6e69a22f69cc68cd147ff0

Aliases

arxiv: 0806.4229 · arxiv_version: 0806.4229v1 · doi: 10.48550/arxiv.0806.4229 · pith_short_12: 7D3JPYCGOIXO · pith_short_16: 7D3JPYCGOIXOAEEI · pith_short_8: 7D3JPYCG

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/7D3JPYCGOIXOAEEIGAXTPIIH4I \
  | 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: f8f697e046722ee01088302f37a107e218bc1f419f6e69a22f69cc68cd147ff0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f14c303f3bfd92c5d44faa90f05dc0c27683a31d0e3ce8a4d6fe92619e21993",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-06-26T03:23:00Z",
    "title_canon_sha256": "032a9ca241a3588f253ce7190d2d6fcc6666ec772cd1e10a797e6e8dc4ebe13d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.4229",
    "kind": "arxiv",
    "version": 1
  }
}