Pith Number

pith:NTBYAGUD

pith:2003:NTBYAGUDXGBMYFY7L3PC2MKEWJ

not attested not anchored not stored refs pending

Flare stars in the TW Hydrae association: The HIP 57269 system

B. K\"onig, E. W. Guenther, R. Neuh\"auser, V. Hambaryan

arxiv:astro-ph/0306340 v1 · 2003-06-17 · 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{NTBYAGUDXGBMYFY7L3PC2MKEWJ}

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	2026-05-18T01:40:38.701736Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6cc3801a83b982cc171f5ede2d3144b27dde2d10e6c821cae8af42fc5878304c

Aliases

arxiv: astro-ph/0306340 · arxiv_version: astro-ph/0306340v1 · doi: 10.48550/arxiv.astro-ph/0306340 · pith_short_12: NTBYAGUDXGBM · pith_short_16: NTBYAGUDXGBMYFY7 · pith_short_8: NTBYAGUD

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/NTBYAGUDXGBMYFY7L3PC2MKEWJ \
  | 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: 6cc3801a83b982cc171f5ede2d3144b27dde2d10e6c821cae8af42fc5878304c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0efe1f12e88f4cb57b4bca6f3d9ec7f5daec13928819f7ba5030c16ccc752f7c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-06-17T15:43:52Z",
    "title_canon_sha256": "93d3795d6c36f51bcbfd660a3c65b286af8c36e438e62066cbd8a6ee8e7be384"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0306340",
    "kind": "arxiv",
    "version": 1
  }
}