Pith Number

pith:KT4Y7H6R

pith:2019:KT4Y7H6RFG34RVKDKGE6MZLUZU

not attested not anchored not stored refs pending

A homogeneous sample of 34 000 M7-M9.5 dwarfs brighter than $J$=17.5 with accurate spectral types

S. Ahmed, S. J. Warren

arxiv:1903.08932 v1 · 2019-03-21 · astro-ph.SR · 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{KT4Y7H6RFG34RVKDKGE6MZLUZU}

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	2026-05-17T23:50:43.535359Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54f98f9fd129b7c8d5435189e66574cd1aeec714b416329824cc7b891754968f

Aliases

arxiv: 1903.08932 · arxiv_version: 1903.08932v1 · doi: 10.48550/arxiv.1903.08932 · pith_short_12: KT4Y7H6RFG34 · pith_short_16: KT4Y7H6RFG34RVKD · pith_short_8: KT4Y7H6R

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/KT4Y7H6RFG34RVKDKGE6MZLUZU \
  | 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: 54f98f9fd129b7c8d5435189e66574cd1aeec714b416329824cc7b891754968f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bcff620109dead8a9ebb91bb9edc5fa9ad58067234b1febb457eded836cfc781",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-03-21T11:38:37Z",
    "title_canon_sha256": "91bb2e21de0a675acc3a46e79dadd86614b994de8b47e46c315d3b4f2510c706"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.08932",
    "kind": "arxiv",
    "version": 1
  }
}