Pith Number

pith:SCHWQJBA

pith:2021:SCHWQJBAKV6UGMPYFJY7WGQDCN

not attested not anchored not stored refs pending

Near-infrared spectroscopic indices for unresolved stellar populations. II. Index measurements

A. Pizzella, D. Gasparri, E. Dalla Bont\`a, E. M. Corsini, L. Coccato, L. Costantin, L. Morelli, M. Cesetti, P. Fran\c{c}ois, V. D. Ivanov

arxiv:2109.03131 v1 · 2021-09-07 · 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{SCHWQJBAKV6UGMPYFJY7WGQDCN}

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	2026-07-05T03:16:24.152996Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

908f682420557d4331f82a71fb1a03136e7d04af6f3cea9f187b98d83fc478d9

Aliases

arxiv: 2109.03131 · arxiv_version: 2109.03131v1 · doi: 10.48550/arxiv.2109.03131 · pith_short_12: SCHWQJBAKV6U · pith_short_16: SCHWQJBAKV6UGMPY · pith_short_8: SCHWQJBA

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/SCHWQJBAKV6UGMPYFJY7WGQDCN \
  | 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: 908f682420557d4331f82a71fb1a03136e7d04af6f3cea9f187b98d83fc478d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c066a5d95ba9aa31e010181ab7f8d16650fa020bff858324fb76ef24aef55af",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-09-07T14:52:40Z",
    "title_canon_sha256": "20b1b67c5d5dc263a1e1bd2ddd6a398d72b1c6cfef73a243ac43bfccfb32a670"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.03131",
    "kind": "arxiv",
    "version": 1
  }
}