Pith Number

pith:WTCMEHOG

pith:2017:WTCMEHOGWEZCBSR5XDEQN2PNG7

not attested not anchored not stored refs pending

Evolution over time of the Milky Way's disc shape

A. C. Robin, C. Reyle, E. B. Amores

arxiv:1701.00475 v2 · 2017-01-02 · 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{WTCMEHOGWEZCBSR5XDEQN2PNG7}

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	2026-05-18T00:42:30.056032Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4c4c21dc6b13220ca3db8c906e9ed37dadcbab26dac60102fc7f98449086c33

Aliases

arxiv: 1701.00475 · arxiv_version: 1701.00475v2 · doi: 10.48550/arxiv.1701.00475 · pith_short_12: WTCMEHOGWEZC · pith_short_16: WTCMEHOGWEZCBSR5 · pith_short_8: WTCMEHOG

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/WTCMEHOGWEZCBSR5XDEQN2PNG7 \
  | 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: b4c4c21dc6b13220ca3db8c906e9ed37dadcbab26dac60102fc7f98449086c33

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e38e3e0522ca1819fb9757e0b0006fd5a3855a85a2e6174da8702dc2a189523f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-01-02T18:28:21Z",
    "title_canon_sha256": "206ca58630939b209a33628f0ba6e0b6c299aee3141077fcfd1781f99c3dc594"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.00475",
    "kind": "arxiv",
    "version": 2
  }
}