Pith Number

pith:TZ7RKTKG

pith:2009:TZ7RKTKGBZAZAFILQUTN4SZCYI

not attested not anchored not stored refs pending

Tomographic Separation of Composite Spectra. XI. The Physical Properties of the Massive Close Binary HD 100213 (TU Muscae)

Cynthia Ouzts, Douglas R. Gies, Laura R. Penny

arxiv:0905.3687 v1 · 2009-05-22 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TZ7RKTKGBZAZAFILQUTN4SZCYI}

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	2026-05-18T04:36:40.592193Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9e7f154d460e4190150b8526de4b22c22d3da563e6ebad4fa5aa839406c8cff9

Aliases

arxiv: 0905.3687 · arxiv_version: 0905.3687v1 · doi: 10.48550/arxiv.0905.3687 · pith_short_12: TZ7RKTKGBZAZ · pith_short_16: TZ7RKTKGBZAZAFIL · pith_short_8: TZ7RKTKG

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/TZ7RKTKGBZAZAFILQUTN4SZCYI \
  | 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: 9e7f154d460e4190150b8526de4b22c22d3da563e6ebad4fa5aa839406c8cff9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1cd68cdbbbf638dcee175bdd19ba06456eb6fcf8fa5c2c9de2b5521296d36a3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-05-22T14:16:01Z",
    "title_canon_sha256": "d19b7adfad3477446c059eda4fe995104d8da85304e4aac93e32ce1c9f66810b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.3687",
    "kind": "arxiv",
    "version": 1
  }
}