Pith Number

pith:GQJPP42G

pith:2016:GQJPP42GYZQEHYHH3A2RHVID7I

not attested not anchored not stored refs pending

A test for the theory of colliding winds: the periastron passage of 9 Sagittarii I. X-ray and optical spectroscopy

Christoffel Waelkens, Delia Volpi, Eric Gosset, Gert Raskin, Gregor Rauw, Hans Van Winckel, Laurent Mahy, Maxime Spano, Ronny Blomme, Yael Naze

arxiv:1603.06745 v1 · 2016-03-22 · astro-ph.SR · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GQJPP42GYZQEHYHH3A2RHVID7I}

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	2026-05-18T01:16:13.315302Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3412f7f346c66043e0e7d83513d503fa29be6c61d990fdf93e2cd425c0cf31dc

Aliases

arxiv: 1603.06745 · arxiv_version: 1603.06745v1 · doi: 10.48550/arxiv.1603.06745 · pith_short_12: GQJPP42GYZQE · pith_short_16: GQJPP42GYZQEHYHH · pith_short_8: GQJPP42G

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/GQJPP42GYZQEHYHH3A2RHVID7I \
  | 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: 3412f7f346c66043e0e7d83513d503fa29be6c61d990fdf93e2cd425c0cf31dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee4eb6fe610c6c3d977eb17a1ba1558f277e3aa69914b5c1ead92203bfe92bb2",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-03-22T11:46:31Z",
    "title_canon_sha256": "f63c8e4518907e49cef507602a94351beee07fb8ab894dd44fb6c18cacc8d707"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.06745",
    "kind": "arxiv",
    "version": 1
  }
}