Pith Number

pith:H6HRLKJZ

pith:1997:H6HRLKJZMQXSRG36JNB5AWDRXV

not attested not anchored not stored refs pending

ASCA observations of deep ROSAT fields I. the nature of the X-ray source populations

A.J. Blair, B.J. Boyle, G.C. Stewart, I. Georgantopoulos, N. Roche, O. Almaini, R.E. Griffiths, T. Shanks

arxiv:astro-ph/9704147 v1 · 1997-04-15 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H6HRLKJZMQXSRG36JNB5AWDRXV}

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	2026-05-18T01:40:17.714388Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f8f15a939642f289b7e4b43d05871bd6f3b4ba903e4197da52409636f041711

Aliases

arxiv: astro-ph/9704147 · arxiv_version: astro-ph/9704147v1 · doi: 10.48550/arxiv.astro-ph/9704147 · pith_short_12: H6HRLKJZMQXS · pith_short_16: H6HRLKJZMQXSRG36 · pith_short_8: H6HRLKJZ

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/H6HRLKJZMQXSRG36JNB5AWDRXV \
  | 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: 3f8f15a939642f289b7e4b43d05871bd6f3b4ba903e4197da52409636f041711

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0bf64e207bfcef9b14ad956b41a73d4b4b92f3d670423eee2a18b59ce45a7e9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-04-15T11:52:42Z",
    "title_canon_sha256": "a1e5ab84a728892abd4b9b0a1618807bfdd32dad326967b0a9737aac5b3a6672"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9704147",
    "kind": "arxiv",
    "version": 1
  }
}