Pith Number

pith:QLI4ZSW7

pith:2008:QLI4ZSW76PD4JRFGGL3LPBEB75

not attested not anchored not stored refs pending

Trigonometric Parallaxes of Massive Star Forming Regions: II. Cep A & NGC 7538

A. Brunthaler, K. M. Menten, L. Moscadelli, M. J. Reid, X. W. Zheng, Y. Xu

arxiv:0811.0679 v1 · 2008-11-05 · 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{QLI4ZSW76PD4JRFGGL3LPBEB75}

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	2026-05-18T04:29:25.440417Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82d1cccadff3c7c4c4a632f6b78481ff59525135c51c53aadcced7b3815c353d

Aliases

arxiv: 0811.0679 · arxiv_version: 0811.0679v1 · doi: 10.48550/arxiv.0811.0679 · pith_short_12: QLI4ZSW76PD4 · pith_short_16: QLI4ZSW76PD4JRFG · pith_short_8: QLI4ZSW7

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/QLI4ZSW76PD4JRFGGL3LPBEB75 \
  | 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: 82d1cccadff3c7c4c4a632f6b78481ff59525135c51c53aadcced7b3815c353d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb774f657ad387ead2b13ea6feb22f97b7fab0a4b94f6da3b8d5472d667fded0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-11-05T10:21:57Z",
    "title_canon_sha256": "ebcc820b6c699a6f8b996084c0a8fc5b9abbac597d7babccef36b62e4e778bef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.0679",
    "kind": "arxiv",
    "version": 1
  }
}