Pith Number

pith:TUYUDW4S

pith:2017:TUYUDW4SJTB2DVH7QE7XQLMCBW

not attested not anchored not stored refs pending

Revealing structure and evolution within the corona of the Seyfert galaxy I Zw 1

C.V. Silva, D.R. Wilkins, E. Costantini, G.A. Kriss, L.C. Gallo, W.N. Brandt

arxiv:1707.05782 v2 · 2017-07-18 · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TUYUDW4SJTB2DVH7QE7XQLMCBW}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

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.

Cited by

1 paper in Pith

Strong X-ray Variability of I Zwicky 1: Obscuration from Clumpy Accretion-Disk Winds

Receipt and verification

First computed	2026-05-18T00:36:02.951474Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d3141db924cc3a1d4ff813f782d820dad48e4103d89b6571a48052c768d7d28

Aliases

arxiv: 1707.05782 · arxiv_version: 1707.05782v2 · doi: 10.48550/arxiv.1707.05782 · pith_short_12: TUYUDW4SJTB2 · pith_short_16: TUYUDW4SJTB2DVH7 · pith_short_8: TUYUDW4S

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/TUYUDW4SJTB2DVH7QE7XQLMCBW \
  | 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: 9d3141db924cc3a1d4ff813f782d820dad48e4103d89b6571a48052c768d7d28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3438f7461d331cebd179d661706d88f8431cefc1e91b7eef9b0eb5f698c02fab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-07-18T18:00:00Z",
    "title_canon_sha256": "a7604deeea01a94f262c4b35fd014741b55f12bb9a2aeaf45742ae6c4b0f80ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.05782",
    "kind": "arxiv",
    "version": 2
  }
}