Pith Number

pith:35PTS7OJ

pith:2007:35PTS7OJSM76CW4SPFAEP3LFJP

not attested not anchored not stored refs pending

Optical studies of the ultraluminous X-ray source NGC1313 X-2

CfA), Jifeng Liu (Harvard-Smithsonian, Joel Bregman (U. of Michigan), Jon Miller (U. of Michigan), Philip Kaaret (U. of Iowa)

arxiv:astro-ph/0703697 v1 · 2007-03-27 · astro-ph

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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	2026-05-18T04:29:05.375099Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df5f397dc9933fe15b92794047ed654bf5660c8a1215ccbe6224ba90ea5488e6

Aliases

arxiv: astro-ph/0703697 · arxiv_version: astro-ph/0703697v1 · doi: 10.48550/arxiv.astro-ph/0703697 · pith_short_12: 35PTS7OJSM76 · pith_short_16: 35PTS7OJSM76CW4S · pith_short_8: 35PTS7OJ

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/35PTS7OJSM76CW4SPFAEP3LFJP \
  | 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: df5f397dc9933fe15b92794047ed654bf5660c8a1215ccbe6224ba90ea5488e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b8620b245eda70f533395ebf935d3473ee49a7d23a8b2eb5367a58566acad64",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-03-27T19:56:18Z",
    "title_canon_sha256": "b400ecb080ef6706631e0a641a23d205d79a7aa13093f60146d6f3facb698c98"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0703697",
    "kind": "arxiv",
    "version": 1
  }
}