Pith Number

pith:COOPTTF7

pith:2004:COOPTTF7523GCYSRWAFKMSZQYU

not attested not anchored not stored refs pending

Spectroscopic Properties of Cool Stars in the SDSS: An Analysis of Magnetic Activity and a Search for Subdwarfs

Andrew A. West, Hugh C. Harris, J. Brinkmann, Jeffrey A. Munn, Kevin R. Covey, Lucianne M. Walkowicz, Nicole M. Silvestri, Peregrine M. McGehee, Sean N. Raymond, Suzanne L. Hawley, Zeljko Ivezic

arxiv:astro-ph/0403486 v1 · 2004-03-19 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{COOPTTF7523GCYSRWAFKMSZQYU}

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	2026-05-18T04:23:00.773222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

139cf9ccbfeeb6616251b00aa64b30c519bbb1c6eb9caf0dab99bcb1c9de8678

Aliases

arxiv: astro-ph/0403486 · arxiv_version: astro-ph/0403486v1 · doi: 10.48550/arxiv.astro-ph/0403486 · pith_short_12: COOPTTF7523G · pith_short_16: COOPTTF7523GCYSR · pith_short_8: COOPTTF7

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/COOPTTF7523GCYSRWAFKMSZQYU \
  | 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: 139cf9ccbfeeb6616251b00aa64b30c519bbb1c6eb9caf0dab99bcb1c9de8678

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f96be023f5a34176c0d0d461cc38860f6240ce361d86bc376d8e63953f9e094",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-03-19T22:52:24Z",
    "title_canon_sha256": "f03be271426b3d8d621c7c298154d7164f088a33fa2eea40df417b781c747e59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0403486",
    "kind": "arxiv",
    "version": 1
  }
}