Pith Number

pith:WRFXVK37

pith:2019:WRFXVK37S7PRBW6VF6HEOID4AQ

not attested not anchored not stored refs pending

Age Demographics of the Milky Way Disk and Bulge

Cambridge), J. Grady, N.W. Evans (IoA, V. Belokurov

arxiv:1912.02816 v1 · 2019-12-05 · 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{WRFXVK37S7PRBW6VF6HEOID4AQ}

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	2026-07-05T00:33:23.744300Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b44b7aab7f97df10dbd52f8e47207c042c1f90838ee801454f13f359b61e3e96

Aliases

arxiv: 1912.02816 · arxiv_version: 1912.02816v1 · doi: 10.48550/arxiv.1912.02816 · pith_short_12: WRFXVK37S7PR · pith_short_16: WRFXVK37S7PRBW6V · pith_short_8: WRFXVK37

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/WRFXVK37S7PRBW6VF6HEOID4AQ \
  | 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: b44b7aab7f97df10dbd52f8e47207c042c1f90838ee801454f13f359b61e3e96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ebfc8c6498a8aefc04dce87d1133ff21723648696c2b057ba6a746dfaa335a5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-12-05T18:59:56Z",
    "title_canon_sha256": "631954e1b6ef62574b2bd289090fb4d59436f31714a7ff73b1bd106c569a04db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.02816",
    "kind": "arxiv",
    "version": 1
  }
}