Pith Number

pith:CRL74F4J

pith:2012:CRL74F4JOGJCJOLHSHDQIRBPSC

not attested not anchored not stored refs pending

PKS0347+05: a radio-loud/radio-quiet double AGN system triggered in a major galaxy merger

C. Ramos Almeida, C. Tadhunter, D. Dicken, J. Holt, K. Inskip, M. Rose, R. Morganti

arxiv:1209.3568 v1 · 2012-09-17 · astro-ph.CO

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	2026-05-18T01:54:27.472796Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1457fe1789719224b96791c704442f90a6bbcebefaa8016e7a9e644bc7005e3a

Aliases

arxiv: 1209.3568 · arxiv_version: 1209.3568v1 · doi: 10.48550/arxiv.1209.3568 · pith_short_12: CRL74F4JOGJC · pith_short_16: CRL74F4JOGJCJOLH · pith_short_8: CRL74F4J

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/CRL74F4JOGJCJOLHSHDQIRBPSC \
  | 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: 1457fe1789719224b96791c704442f90a6bbcebefaa8016e7a9e644bc7005e3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9cee65aa31c5d2eab8f866ddc165be87f42fbde495cbd67b2282cf6259b4728",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-09-17T07:46:34Z",
    "title_canon_sha256": "24000ce5d473de0620a5e515ab6de66c9c50916fe4ea5e8f7f0ec18c558742dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.3568",
    "kind": "arxiv",
    "version": 1
  }
}