Pith Number

pith:P2PXACIS

pith:2019:P2PXACIS2UFSFN7L45DTBFKXGQ

not attested not anchored not stored refs pending

Morphological diversity of spiral galaxies originating in the cold gas inflow from cosmic webs

Masafumi Noguchi

arxiv:1905.08993 v1 · 2019-05-22 · 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{P2PXACIS2UFSFN7L45DTBFKXGQ}

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.

Receipt and verification

First computed	2026-05-17T23:45:24.642713Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e9f700912d50b22b7ebe747309557340e737bf6499b9f364c643004e23e195f

Aliases

arxiv: 1905.08993 · arxiv_version: 1905.08993v1 · doi: 10.48550/arxiv.1905.08993 · pith_short_12: P2PXACIS2UFS · pith_short_16: P2PXACIS2UFSFN7L · pith_short_8: P2PXACIS

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/P2PXACIS2UFSFN7L45DTBFKXGQ \
  | 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: 7e9f700912d50b22b7ebe747309557340e737bf6499b9f364c643004e23e195f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "669ef4043062ef691bc8f3342cd2743eec58272211524da2ee88d2ff9391cb22",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-05-22T07:25:12Z",
    "title_canon_sha256": "f1be134a8f56c936a5bc9d2a6bc85778e20adcb26a48fdc0238283faeeacadff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.08993",
    "kind": "arxiv",
    "version": 1
  }
}