Pith Number

pith:YDXUZYBA

pith:2012:YDXUZYBAGFESV35HM2VMIL5EVI

not attested not anchored not stored refs pending

The Unseen Population of F to K-type Companions to Hot Subdwarf Stars

B. T. G\"ansicke, C. M. Copperwheat, D. Steeghs, E. Breedt, J. Girven, P. Longa Pe\~na, S. Pyrzas, T. R. Marsh, U. Heber

arxiv:1205.6803 v1 · 2012-05-30 · 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{YDXUZYBAGFESV35HM2VMIL5EVI}

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	2026-05-18T01:57:09.779431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0ef4ce02031492aefa766aac42fa4aa3e2c6a25155f703e1d5c61b11c212760

Aliases

arxiv: 1205.6803 · arxiv_version: 1205.6803v1 · doi: 10.48550/arxiv.1205.6803 · pith_short_12: YDXUZYBAGFES · pith_short_16: YDXUZYBAGFESV35H · pith_short_8: YDXUZYBA

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/YDXUZYBAGFESV35HM2VMIL5EVI \
  | 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: c0ef4ce02031492aefa766aac42fa4aa3e2c6a25155f703e1d5c61b11c212760

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48e891fc1533de15a2d80a803b088029c4c5f4ca7e9967e2f9301ca7548b33fd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-05-30T20:00:01Z",
    "title_canon_sha256": "e91392668e45af5514beb4d9a3c1d3d127fe56ccb0436d2f392db85011ea110d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.6803",
    "kind": "arxiv",
    "version": 1
  }
}