Pith Number

pith:EV6IYZ76

pith:2005:EV6IYZ76AIO5AAENWVQHPKLZSQ

not attested not anchored not stored refs pending

Evidence for an Untruncated Accretion Disk in the Broad-Line Radio Galaxy 4C+74.26

A.C. Fabian (2) ((1) CITA, Cambridge), D.R. Ballantyne (1), Toronto (2) IoA

arxiv:astro-ph/0502461 v1 · 2005-02-22 · 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{EV6IYZ76AIO5AAENWVQHPKLZSQ}

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	2026-07-04T16:50:52.464306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

257c8c67fe021dd0008db56077a9799421f33e3fa712310ce368a9e245943ce6

Aliases

arxiv: astro-ph/0502461 · arxiv_version: astro-ph/0502461v1 · doi: 10.48550/arxiv.astro-ph/0502461 · pith_short_12: EV6IYZ76AIO5 · pith_short_16: EV6IYZ76AIO5AAEN · pith_short_8: EV6IYZ76

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/EV6IYZ76AIO5AAENWVQHPKLZSQ \
  | 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: 257c8c67fe021dd0008db56077a9799421f33e3fa712310ce368a9e245943ce6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e38a9a3ce6dca1409e740d8462ee009d61ae56ca6132d71bb9eb4e2baf6c911",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-02-22T16:58:13Z",
    "title_canon_sha256": "03bdeaad33e75f0c7edccc36227f82a95d61a60d92bc4240d85b379c33140578"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0502461",
    "kind": "arxiv",
    "version": 1
  }
}