Pith Number

pith:XP2ON53D

pith:2009:XP2ON53DF36XCDI6PGNL6WHJAF

not attested not anchored not stored refs pending

Characterization of the emitting and absorbing media around the nucleus of the active galaxy UGC11763 using XMM-Newton data

A.I. Diaz, G.F. Hagele, M. Santos-Lleo, M.V. Cardaci, P. Rodriguez-Pascual, Y. Krongold

arxiv:0909.2180 v1 · 2009-09-11 · astro-ph.GA

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	2026-05-18T02:11:56.919185Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbf4e6f7632efd710d1e799abf58e901545872182cca24ca5719439e1ff804ab

Aliases

arxiv: 0909.2180 · arxiv_version: 0909.2180v1 · doi: 10.48550/arxiv.0909.2180 · pith_short_12: XP2ON53DF36X · pith_short_16: XP2ON53DF36XCDI6 · pith_short_8: XP2ON53D

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/XP2ON53DF36XCDI6PGNL6WHJAF \
  | 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: bbf4e6f7632efd710d1e799abf58e901545872182cca24ca5719439e1ff804ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a09cd1b2c8f5cd01656d288749a091b5ff80ea7a7c9eb2b23065c27b9ab71dd7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-09-11T14:39:42Z",
    "title_canon_sha256": "0a78d1300b652c516680408ae8b5655046c714ea2a196b46a7008a97eae0e22b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.2180",
    "kind": "arxiv",
    "version": 1
  }
}