Pith Number

pith:G7KMLXE6

pith:2016:G7KMLXE6LBYYK5ETFXFEAOJ65R

not attested not anchored not stored refs pending

A spectroscopic study of blue supergiant stars in the Sculptor galaxy NGC 55: chemical evolution and distance

Fabio Bresolin, Grzegorz Pietrzynski, I-Ting Ho, Miguel Urbaneja, Norberto Castro, Norbert Przybilla, Rolf Kudritzki, Wolfgang Gieren

arxiv:1607.04325 v1 · 2016-07-14 · 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{G7KMLXE6LBYYK5ETFXFEAOJ65R}

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	2026-05-18T01:03:18.065540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37d4c5dc9e58718574932dca40393eec447fc417eac3cc7d4e351ef5bff304c2

Aliases

arxiv: 1607.04325 · arxiv_version: 1607.04325v1 · doi: 10.48550/arxiv.1607.04325 · pith_short_12: G7KMLXE6LBYY · pith_short_16: G7KMLXE6LBYYK5ET · pith_short_8: G7KMLXE6

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/G7KMLXE6LBYYK5ETFXFEAOJ65R \
  | 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: 37d4c5dc9e58718574932dca40393eec447fc417eac3cc7d4e351ef5bff304c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c223fccbbe27bd5e6514051fe382815d586c4a8c743df68dc52fddfba760f174",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-07-14T21:21:48Z",
    "title_canon_sha256": "3f23e333b835a9dc8c743b80ed78c5f1f0c2b5057a6c4fd72fcf2479a0d3666c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.04325",
    "kind": "arxiv",
    "version": 1
  }
}