Pith Number

pith:AK3IUMCO

pith:2010:AK3IUMCON3L2XECK4CA5CIROHG

not attested not anchored not stored refs pending

The Transition from "Normal" to "Broad Absorption Line Quasar" of Ton 34

F. Hernandez-Ibarra, L. Binette, Y. Krongold

arxiv:1010.4817 v1 · 2010-10-22 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AK3IUMCON3L2XECK4CA5CIROHG}

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	2026-05-18T02:04:59.354669Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

02b68a304e6ed7ab904ae081d1222e39ac587ebade73be27b932893988bb9a42

Aliases

arxiv: 1010.4817 · arxiv_version: 1010.4817v1 · doi: 10.48550/arxiv.1010.4817 · pith_short_12: AK3IUMCON3L2 · pith_short_16: AK3IUMCON3L2XECK · pith_short_8: AK3IUMCO

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/AK3IUMCON3L2XECK4CA5CIROHG \
  | 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: 02b68a304e6ed7ab904ae081d1222e39ac587ebade73be27b932893988bb9a42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12b33b2ca9d1274b68f1a7b08bfd78f2f752589336d9b38897d1671254fefc55",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-10-22T21:17:40Z",
    "title_canon_sha256": "3d6f77d75180e9f32b019ac16f4ed3f8b70b845c932ffe63c1d06db2db5ac965"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.4817",
    "kind": "arxiv",
    "version": 1
  }
}