Pith Number

pith:P5C7Q56H

pith:1997:P5C7Q56HPLKZRI2KNOFCSTGCOV

not attested not anchored not stored refs pending

The ASCA X-ray spectrum of the powerful radio galaxy 3C109

A.C. Fabian, C. Otani, E. Idesawa, H. Inoue, S.W. Allen, T. Kii

arxiv:astro-ph/9701033 v1 · 1997-01-08 · astro-ph

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	2026-05-18T01:40:18.415219Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f45f877c77ad598a34a6b8a294cc2756f2a59479c6b3d9438b31e9f9944c9d3

Aliases

arxiv: astro-ph/9701033 · arxiv_version: astro-ph/9701033v1 · doi: 10.48550/arxiv.astro-ph/9701033 · pith_short_12: P5C7Q56HPLKZ · pith_short_16: P5C7Q56HPLKZRI2K · pith_short_8: P5C7Q56H

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/P5C7Q56HPLKZRI2KNOFCSTGCOV \
  | 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: 7f45f877c77ad598a34a6b8a294cc2756f2a59479c6b3d9438b31e9f9944c9d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58e0dcba5576974fac741cafe1230838a10d9c1af86e537ff26f986a6ab6c3b9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-01-08T13:20:53Z",
    "title_canon_sha256": "fc31c8f83d40cba209a5a974d9c0744d3baab0f77e6caa1f6b46a942217f8dce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9701033",
    "kind": "arxiv",
    "version": 1
  }
}