Pith Number

pith:NS5R5BBH

pith:2009:NS5R5BBHN37ZK752XSXHEENCCR

not attested not anchored not stored refs pending

Spectroscopy of the bright optical counterparts of X-ray sources in the direction of M 31. II

1) ((1) University of Crete, 2), (2) IESL, (3) Max-Planck-Institut fur extraterrestrische Physik), Despina Hatzidimitriou (1, Foundation for Research, Paolo Bonfini (1), Physics Department, P. Reig (2, Technology, Wolfgang Pietsch (3)

arxiv:0907.4982 v1 · 2009-07-28 · 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{NS5R5BBHN37ZK752XSXHEENCCR}

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	2026-05-18T02:12:46.941821Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6cbb1e84276eff957fbabcae7211a214791c8ab84279c961d1eb50057ea7110b

Aliases

arxiv: 0907.4982 · arxiv_version: 0907.4982v1 · doi: 10.48550/arxiv.0907.4982 · pith_short_12: NS5R5BBHN37Z · pith_short_16: NS5R5BBHN37ZK752 · pith_short_8: NS5R5BBH

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/NS5R5BBHN37ZK752XSXHEENCCR \
  | 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: 6cbb1e84276eff957fbabcae7211a214791c8ab84279c961d1eb50057ea7110b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e7dec96c164aa81e5b726c8b2154d485ae056c9be180eedc35508ebcffff3dd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-07-28T20:00:05Z",
    "title_canon_sha256": "d09bac6242170855dda6f8bf02df6d0b796bf5174c324fea2d3130633c406bca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.4982",
    "kind": "arxiv",
    "version": 1
  }
}