Pith Number

pith:WZA4X2AI

pith:2009:WZA4X2AIWWHKJF5KTQEVOJMERG

not attested not anchored not stored refs pending

Spectrophotometrically Identified stars in the PEARS-N and PEARS-S fields

A. J. Burgasser, B. W. Holwerda, C. Xu, J. E. Rhoads, J. J. Bochanski, J. R. Walsh, K. C. Sahu, N. P. Hathi, N. Pirzkal, R. A. Windhorst, S. H. Cohen, S. Malhotra

arxiv:0901.3321 v1 · 2009-01-21 · 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{WZA4X2AIWWHKJF5KTQEVOJMERG}

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	2026-05-18T04:29:17.257052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b641cbe808b58ea497aa9c09572584899bf2c5a6a41a458ad8e71b24b932fbd4

Aliases

arxiv: 0901.3321 · arxiv_version: 0901.3321v1 · doi: 10.48550/arxiv.0901.3321 · pith_short_12: WZA4X2AIWWHK · pith_short_16: WZA4X2AIWWHKJF5K · pith_short_8: WZA4X2AI

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/WZA4X2AIWWHKJF5KTQEVOJMERG \
  | 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: b641cbe808b58ea497aa9c09572584899bf2c5a6a41a458ad8e71b24b932fbd4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ddb85d57d6fcaf6f476ca55002e28c9f518f18bb9bc7fa769f0dd4475a76ea0b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-01-21T17:40:04Z",
    "title_canon_sha256": "75bb061863277f828e683dcedbbcde1d2a7c3f7da13a6f208bd00c58018410dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.3321",
    "kind": "arxiv",
    "version": 1
  }
}