Pith Number

pith:CCWC4PKQ

pith:2016:CCWC4PKQ45HSP5ZHPKMZDOIIJ7

not attested not anchored not stored refs pending

Evidence for Variable, Correlated X-ray and Optical/IR Extinction toward the Nearby, Pre-main Sequence Binary TWA 30

Beate Stelzer (INAF Palermo, Chile), David A. Principe (Universidad Diego Portales, G. G. Sacco (INAF Arcetri, Italy), Joel H. Kastner (Rochester Institute of Technology, Juan Alcala (INAF Napoli, USA)

arxiv:1604.00397 v1 · 2016-04-01 · 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{CCWC4PKQ45HSP5ZHPKMZDOIIJ7}

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	2026-05-18T01:16:39.150757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10ac2e3d50e74f27f7277a9991b9084fd41907bc5b06df7ae807d3aae2f5e772

Aliases

arxiv: 1604.00397 · arxiv_version: 1604.00397v1 · doi: 10.48550/arxiv.1604.00397 · pith_short_12: CCWC4PKQ45HS · pith_short_16: CCWC4PKQ45HSP5ZH · pith_short_8: CCWC4PKQ

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/CCWC4PKQ45HSP5ZHPKMZDOIIJ7 \
  | 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: 10ac2e3d50e74f27f7277a9991b9084fd41907bc5b06df7ae807d3aae2f5e772

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dccb8dd7e2685b7bbb22f980925e801c43a585d1faa49a39e10c4397c0513a9e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-04-01T20:00:04Z",
    "title_canon_sha256": "93bded69088f7725f2501154019e2a168541d0013b8021c5cff655bd670f146a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.00397",
    "kind": "arxiv",
    "version": 1
  }
}