Pith Number

pith:HRMXNZKA

pith:2004:HRMXNZKAR6UHT55IJMELXIP65A

not attested not anchored not stored refs pending

Observational Evidence for Intermediate-Mass Black Holes in Ultra-luminous X-ray Sources

E. J. M Colbert, M. C. Miller

arxiv:astro-ph/0402677 v1 · 2004-02-27 · 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{HRMXNZKAR6UHT55IJMELXIP65A}

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	2026-05-18T00:59:51.073345Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c5976e5408fa879f7a84b08bba1fee8319f37f41c4123dc58158151e2ff3356

Aliases

arxiv: astro-ph/0402677 · arxiv_version: astro-ph/0402677v1 · doi: 10.48550/arxiv.astro-ph/0402677 · pith_short_12: HRMXNZKAR6UH · pith_short_16: HRMXNZKAR6UHT55I · pith_short_8: HRMXNZKA

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/HRMXNZKAR6UHT55IJMELXIP65A \
  | 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: 3c5976e5408fa879f7a84b08bba1fee8319f37f41c4123dc58158151e2ff3356

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "596c5d5f8f9a1fe2c6b7e37620f71cd151eb089b34f309b72a252305af7be233",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-02-27T19:52:32Z",
    "title_canon_sha256": "d4abc1b246f155b16f666eb00225e5f24e95ba26ba8096ec0ddba42939763f74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0402677",
    "kind": "arxiv",
    "version": 1
  }
}