Pith Number

pith:YB3DRKGL

pith:2019:YB3DRKGLWMWOXH4IJASDKPNNB6

not attested not anchored not stored refs pending

Economic Power, Population, and the Size of Astronomical Community

Sang-Hyeon Ahn

arxiv:1908.02584 v1 · 2019-08-02 · cs.DL · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YB3DRKGLWMWOXH4IJASDKPNNB6}

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	2026-07-05T00:30:20.318894Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c07638a8cbb32ceb9f884824353dad0f863c05d9df1e8d659d7f8d7d248c9b29

Aliases

arxiv: 1908.02584 · arxiv_version: 1908.02584v1 · doi: 10.48550/arxiv.1908.02584 · pith_short_12: YB3DRKGLWMWO · pith_short_16: YB3DRKGLWMWOXH4I · pith_short_8: YB3DRKGL

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/YB3DRKGLWMWOXH4IJASDKPNNB6 \
  | 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: c07638a8cbb32ceb9f884824353dad0f863c05d9df1e8d659d7f8d7d248c9b29

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b40e373b0b25654593d8ca38c619b1931414ea87aee4f78bc9d7d25ae26d524a",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2019-08-02T04:38:39Z",
    "title_canon_sha256": "b7d34c3174fc3d1f76fbd85e63b3e32d147a3b92dfb7f4a91e1eb5642b3ec45f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02584",
    "kind": "arxiv",
    "version": 1
  }
}