Pith Number

pith:QYTVXHS5

pith:2009:QYTVXHS5QJ6RATZM3P4LDODEQ4

not attested not anchored not stored refs pending

Hot and cool: two emission-line stars with constrasting behaviours in the same XMM-Newton field

Asif ud-Doula (Morrisville State Col.), Gregor Rauw (ULg), Yael Naze

arxiv:0912.0379 v3 · 2009-12-02 · 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{QYTVXHS5QJ6RATZM3P4LDODEQ4}

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	2026-05-18T02:10:34.659477Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86275b9e5d827d104f2cdbf8b1b8648724845edd7bb3213d6bb81c5fbccc83c0

Aliases

arxiv: 0912.0379 · arxiv_version: 0912.0379v3 · doi: 10.48550/arxiv.0912.0379 · pith_short_12: QYTVXHS5QJ6R · pith_short_16: QYTVXHS5QJ6RATZM · pith_short_8: QYTVXHS5

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/QYTVXHS5QJ6RATZM3P4LDODEQ4 \
  | 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: 86275b9e5d827d104f2cdbf8b1b8648724845edd7bb3213d6bb81c5fbccc83c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "609433813c4bb5caf76baf49dfdca2f7ea7085f18538b2971fd058a08fe3a4a6",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-12-02T10:08:59Z",
    "title_canon_sha256": "78a66bbfb4892dc9b3525a58a6b0a6bbefc109cd0ed77a29af153ed117aa3805"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.0379",
    "kind": "arxiv",
    "version": 3
  }
}