Pith Number

pith:IDX6C2JZ

pith:2000:IDX6C2JZOE4Q4TO7QLHOXNGXM2

not attested not anchored not stored refs pending

X-ray variability in a complete sample of Soft X-ray selected AGN

D. Grupe, H.-C. Thomas, K. Beuermann

arxiv:astro-ph/0012100 v1 · 2000-12-05 · 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	2026-05-18T01:07:46.199235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40efe1693971390e4ddf82ceebb4d766ad47145b042b24e388be533f5dbbeee1

Aliases

arxiv: astro-ph/0012100 · arxiv_version: astro-ph/0012100v1 · doi: 10.48550/arxiv.astro-ph/0012100 · pith_short_12: IDX6C2JZOE4Q · pith_short_16: IDX6C2JZOE4Q4TO7 · pith_short_8: IDX6C2JZ

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/IDX6C2JZOE4Q4TO7QLHOXNGXM2 \
  | 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: 40efe1693971390e4ddf82ceebb4d766ad47145b042b24e388be533f5dbbeee1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71834c27e86f03c6c97f1ac98b543379d5115c32ae1a7dc195b845eb4a650d01",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-12-05T13:25:07Z",
    "title_canon_sha256": "f5881517aaa3e2489fc419eb8ab5495c4fe045df6940b983a284f92f0db43f23"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0012100",
    "kind": "arxiv",
    "version": 1
  }
}