Pith Number

pith:HQYASFU6

pith:2016:HQYASFU62PLBVFLMFVBZT3TIH3

not attested not anchored not stored refs pending

The lack of X-ray pulsations in the extreme helium star BD+37$^{\circ}$442 and its possible stellar wind X-ray emission

1, (2) IUSS Pavia (I), 3), (3) INFN Pavia (I), (4) University of Amsterdam (NL)), Andrea Tiengo (2, N. La Palombara (1), Paolo Esposito (4) (1 - INAF/IASF Milano (I), S. Mereghetti (1)

arxiv:1612.06097 v1 · 2016-12-19 · astro-ph.HE · 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{HQYASFU62PLBVFLMFVBZT3TIH3}

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	2026-05-18T00:52:37.151269Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c3009169ed3d61a956c2d4399ee683ec66f994b04bf28d4277d467374726ecf

Aliases

arxiv: 1612.06097 · arxiv_version: 1612.06097v1 · doi: 10.48550/arxiv.1612.06097 · pith_short_12: HQYASFU62PLB · pith_short_16: HQYASFU62PLBVFLM · pith_short_8: HQYASFU6

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/HQYASFU62PLBVFLMFVBZT3TIH3 \
  | 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: 3c3009169ed3d61a956c2d4399ee683ec66f994b04bf28d4277d467374726ecf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2c19798c08c1ffb216ea8fdf062880e475d127a7795c5c610b265d50a4f7cce",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-12-19T10:00:21Z",
    "title_canon_sha256": "e7807ef55821063b68eba9a6d9be078995860f471850cebe202fc1b289e0f990"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.06097",
    "kind": "arxiv",
    "version": 1
  }
}