Pith Number

pith:EUH7ABEL

pith:1995:EUH7ABELJBZWYELS6H3EKKQ2JP

not attested not anchored not stored refs pending

The accretion luminsoity of a massive black hole in an elliptical galaxy

A.C. Fabian, M.J. Rees

arxiv:astro-ph/9509096 v1 · 1995-09-19 · astro-ph

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

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	2026-05-18T01:12:44.093241Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

250ff0048b48736c1172f1f6452a1a4bf7ee9b0b4797c971747658015a7cf373

Aliases

arxiv: astro-ph/9509096 · arxiv_version: astro-ph/9509096v1 · doi: 10.48550/arxiv.astro-ph/9509096 · pith_short_12: EUH7ABELJBZW · pith_short_16: EUH7ABELJBZWYELS · pith_short_8: EUH7ABEL

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/EUH7ABELJBZWYELS6H3EKKQ2JP \
  | 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: 250ff0048b48736c1172f1f6452a1a4bf7ee9b0b4797c971747658015a7cf373

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94f9176741f3e1e6d2fc8a3b3a1d5a04659e2ece76294db8c4c2cdb6634cb713",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-09-19T13:00:47Z",
    "title_canon_sha256": "06ff57a0ca756076fce0d6120bd2d9d201f4cb4b2f57827f0c66c04ace6911f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9509096",
    "kind": "arxiv",
    "version": 1
  }
}