Pith Number

pith:E4KA3ARX

pith:2016:E4KA3ARXYTA6TJ5PNI6TCAFLM5

not attested not anchored not stored refs pending

The Red and Featureless Outer Disks of Nearby Spiral Galaxies

Aaron E. Watkins, J. Christopher Mihos, Paul Harding

arxiv:1605.05183 v1 · 2016-05-17 · 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{E4KA3ARXYTA6TJ5PNI6TCAFLM5}

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	2026-05-18T01:10:29.677329Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27140d8237c4c1e9a7af6a3d3100ab675d9d0f2041e3bb386284ffb0bdfd31fc

Aliases

arxiv: 1605.05183 · arxiv_version: 1605.05183v1 · doi: 10.48550/arxiv.1605.05183 · pith_short_12: E4KA3ARXYTA6 · pith_short_16: E4KA3ARXYTA6TJ5P · pith_short_8: E4KA3ARX

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/E4KA3ARXYTA6TJ5PNI6TCAFLM5 \
  | 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: 27140d8237c4c1e9a7af6a3d3100ab675d9d0f2041e3bb386284ffb0bdfd31fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fbed14ef8ccb469fbb145a7e674f3b97b5af82bfe99a7803ad8394c59acfa9f4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-05-17T14:29:10Z",
    "title_canon_sha256": "ccf019b1148cbd5dd23dcb026df0b21b72be678db78a6d2db8f74cea28b5555e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.05183",
    "kind": "arxiv",
    "version": 1
  }
}