Pith Number

pith:2TZM6UWV

pith:2012:2TZM6UWVPLNRJ44EGQZQKSGDO7

not attested not anchored not stored refs pending

Long-term photometric and spectroscopic observations of the near-contact binary KR Cygni

C. Ibanoglu, E. Sipahi, O. Cakirli

arxiv:1209.0290 v1 · 2012-09-03 · 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{2TZM6UWVPLNRJ44EGQZQKSGDO7}

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	2026-05-18T03:46:29.491503Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4f2cf52d57adb14f38434330548c377d0ff2fb9876720c9820c0378e2187e0b

Aliases

arxiv: 1209.0290 · arxiv_version: 1209.0290v1 · doi: 10.48550/arxiv.1209.0290 · pith_short_12: 2TZM6UWVPLNR · pith_short_16: 2TZM6UWVPLNRJ44E · pith_short_8: 2TZM6UWV

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/2TZM6UWVPLNRJ44EGQZQKSGDO7 \
  | 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: d4f2cf52d57adb14f38434330548c377d0ff2fb9876720c9820c0378e2187e0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "368bbcf19949d51e1c4666fd1af4e453f12848020093a4e585e2316246ae35f7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-09-03T10:13:59Z",
    "title_canon_sha256": "de404bb5ee20ffe4afa1da1c3ef348ca1158ed466aa9dba12f80efd67498ed26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.0290",
    "kind": "arxiv",
    "version": 1
  }
}