Pith Number

pith:WT2TJINA

pith:2019:WT2TJINAD7YUC4NE2J6FOS2TU6

not attested not anchored not stored refs pending

Smaller stellar disc scale lengths in rich environments

Ian D. Roberts, Laura C. Parker, Melanie L. Demers

arxiv:1908.06810 v1 · 2019-08-19 · 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{WT2TJINAD7YUC4NE2J6FOS2TU6}

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	2026-07-04T23:58:19.567273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4f534a1a01ff14171a4d27c574b53a7b82443592fc8a43a7b38ac5c0dcbe89c

Aliases

arxiv: 1908.06810 · arxiv_version: 1908.06810v1 · doi: 10.48550/arxiv.1908.06810 · pith_short_12: WT2TJINAD7YU · pith_short_16: WT2TJINAD7YUC4NE · pith_short_8: WT2TJINA

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/WT2TJINAD7YUC4NE2J6FOS2TU6 \
  | 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: b4f534a1a01ff14171a4d27c574b53a7b82443592fc8a43a7b38ac5c0dcbe89c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8da906049884621e108d7189e5615f9601c727a2bd716eb1495ef0551d82b4c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-08-19T14:04:52Z",
    "title_canon_sha256": "4b0ca47fd21fd601dc6572ffa4414a060a9c4f613aa6dcb56dae464914da463d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.06810",
    "kind": "arxiv",
    "version": 1
  }
}