Pith Number

pith:FZIXGSD4

pith:2016:FZIXGSD4BTCCYX55KPAOLMILN7

not attested not anchored not stored refs pending

Anatomy of the AGN in NGC 5548: VII. Swift study of obscuration and broadband continuum variability

B. De Marco, B.M. Peterson, E. Behar, E. Costantini, F. Ursini, G.A. Kriss, G. Branduardi-Raymont, G. Matt, G. Ponti, J. Ebrero, J.S. Kaastra, K.C. Steenbrugge, L. Di Gesu, M. Cappi, M. Mehdipour, M. Whewell, P.-O. Petrucci, S. Bianchi, S. Paltani

arxiv:1602.03017 v1 · 2016-02-09 · astro-ph.HE · 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	2026-05-18T01:17:41.541847Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e5173487c0cc42c5fbd53c0e5b10b6fcbe754f18c3c8afe3178bdd523c70510

Aliases

arxiv: 1602.03017 · arxiv_version: 1602.03017v1 · doi: 10.48550/arxiv.1602.03017 · pith_short_12: FZIXGSD4BTCC · pith_short_16: FZIXGSD4BTCCYX55 · pith_short_8: FZIXGSD4

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/FZIXGSD4BTCCYX55KPAOLMILN7 \
  | 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: 2e5173487c0cc42c5fbd53c0e5b10b6fcbe754f18c3c8afe3178bdd523c70510

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "698305ee80458992a6d90ecc25ed55e8f85265dc86675ecff49503e2dc5cf63f",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-02-09T15:04:45Z",
    "title_canon_sha256": "2f0fab9898fa174ce81311b5c64721ce4d5786b98ff16439936f7afedeb53d0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.03017",
    "kind": "arxiv",
    "version": 1
  }
}