Pith Number

pith:I2PWWSGH

pith:2019:I2PWWSGHZDFMEDM4KPV7WHDTVA

not attested not anchored not stored refs pending

Effects of Gas on Formation and Evolution of Stellar Bars and Nuclear Rings in Disk Galaxies

Cheongho Han, Pei-Ying Hsieh, Phil F. Hopkins, SungWon Kwak, Woong-Tae Kim, Woo-Young Seo

arxiv:1901.02021 v1 · 2019-01-07 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I2PWWSGHZDFMEDM4KPV7WHDTVA}

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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

When bars and spirals conspire: recurrent build-up of the nuclear regions of disc galaxies

Receipt and verification

First computed	2026-05-17T23:54:15.335029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

469f6b48c7c8cac20d9c53ebfb1c73a80e1fae203c7f33cab78f93703bcf7785

Aliases

arxiv: 1901.02021 · arxiv_version: 1901.02021v1 · doi: 10.48550/arxiv.1901.02021 · pith_short_12: I2PWWSGHZDFM · pith_short_16: I2PWWSGHZDFMEDM4 · pith_short_8: I2PWWSGH

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/I2PWWSGHZDFMEDM4KPV7WHDTVA \
  | 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: 469f6b48c7c8cac20d9c53ebfb1c73a80e1fae203c7f33cab78f93703bcf7785

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b78eb016640504b4fda2c44a047bf1a791eb209a7e1bac093186ee67e8f9d88",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-01-07T19:00:05Z",
    "title_canon_sha256": "9b05201c87cad0ab1e7fd5166bbba30bcfa5f223dd71e7caed0ae8b98f1fb112"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.02021",
    "kind": "arxiv",
    "version": 1
  }
}