Pith Number

pith:WPOFV3PA

pith:2009:WPOFV3PAMHAIGBHGX2OZWSCTR7

not attested not anchored not stored refs pending

The discovery of a massive white dwarf in the peculiar binary system HD 49798/RX J0648.0-4418

(2) INAF, A.Tiengo, G.L.Israel, L.Stella (2) ((1) INAF-IASF Milano, N.La Palombara (1), Oss. Astron. Roma), P.Esposito, S.Mereghetti

arxiv:0911.3809 v1 · 2009-11-19 · astro-ph.HE · astro-ph.SR

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

Receipt and verification

First computed	2026-05-18T02:10:45.829386Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3dc5aede061c08304e6be9d9b48538fecab1ad119affb49caf33c53f4e4e01e

Aliases

arxiv: 0911.3809 · arxiv_version: 0911.3809v1 · doi: 10.48550/arxiv.0911.3809

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/WPOFV3PAMHAIGBHGX2OZWSCTR7 \
  | 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: b3dc5aede061c08304e6be9d9b48538fecab1ad119affb49caf33c53f4e4e01e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9721f43e082d73debe177f0f03d1c8b91c376a0b48b95652bb273577e2ccbeb",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-11-19T14:37:56Z",
    "title_canon_sha256": "62b8f1baf7ee3a52a74a7729b4ecfc698542b33cb539d796816d406fb7abe7d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.3809",
    "kind": "arxiv",
    "version": 1
  }
}