Pith Number

pith:NQTTX2BT

pith:2010:NQTTX2BTWFWFDOSENYAX4LUIC3

not attested not anchored not stored refs pending

Photometric and spectroscopic investigation of TW Draconis

H. Bozic, J. Janik, J. Krticka, J. Zverko, M. Slechta, M. Wolf, M. Zejda, P. Svoboda, Z. Mikulasek

arxiv:1012.5679 v2 · 2010-12-28 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NQTTX2BTWFWFDOSENYAX4LUIC3}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T04:25:27.839358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c273be833b16c51ba446e017e2e8816ca54b05409975a7dd7bbe181c643d59a

Aliases

arxiv: 1012.5679 · arxiv_version: 1012.5679v2 · doi: 10.48550/arxiv.1012.5679 · pith_short_12: NQTTX2BTWFWF · pith_short_16: NQTTX2BTWFWFDOSE · pith_short_8: NQTTX2BT

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/NQTTX2BTWFWFDOSENYAX4LUIC3 \
  | 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: 6c273be833b16c51ba446e017e2e8816ca54b05409975a7dd7bbe181c643d59a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b5226af93437a5a44e49e774fb96dfe2638730ad33b88c314381564dec17e04",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-12-28T00:26:27Z",
    "title_canon_sha256": "abf78590faa9d54a8d93054809aa62e96c5479a68502edc0289c307a55e8f9fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.5679",
    "kind": "arxiv",
    "version": 2
  }
}