Pith Number

pith:IXABJT4N

pith:2002:IXABJT4NXDHRW2FUDHESVH4NE5

not attested not anchored not stored refs pending

A photometric method to determine supermassive black hole masses

A.W.Graham, I.Trujillo, N.Caon, P.Erwin

arxiv:astro-ph/0206248 v1 · 2002-06-14 · 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{IXABJT4NXDHRW2FUDHESVH4NE5}

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	2026-05-18T03:57:01.327209Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45c014cf8db8cf1b68b419c92a9f8d277deb582fe3ef8033c5c26ab599a674a5

Aliases

arxiv: astro-ph/0206248 · arxiv_version: astro-ph/0206248v1 · doi: 10.48550/arxiv.astro-ph/0206248 · pith_short_12: IXABJT4NXDHR · pith_short_16: IXABJT4NXDHRW2FU · pith_short_8: IXABJT4N

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/IXABJT4NXDHRW2FUDHESVH4NE5 \
  | 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: 45c014cf8db8cf1b68b419c92a9f8d277deb582fe3ef8033c5c26ab599a674a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d77db64e2889cea200fe506258bbbccbe4145bf0bb1e78a7cd4c6450b7deda56",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-06-14T17:02:46Z",
    "title_canon_sha256": "d15d4ced63aa116f12b6b51d6634e387d5354fe0e9fc146ae1578fe504d7dd49"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0206248",
    "kind": "arxiv",
    "version": 1
  }
}