Pith Number

pith:RJIY6P52

pith:2018:RJIY6P52YZ6HM3QUPOQRG7WLEY

not attested not anchored not stored refs pending

Quantitative Spectroscopy of Supergiants in the Local Group Dwarf Galaxy IC 1613: Metallicity and Distance

Fabio Bresolin, Grzegorz Pietrzy\'nski, Miguel A. Urbaneja, Norbert Przybilla, Rolf-Peter Kudritzki, Travis A. Berger, Wolfgang Gieren

arxiv:1805.07352 v1 · 2018-05-18 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RJIY6P52YZ6HM3QUPOQRG7WLEY}

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	2026-05-18T00:11:33.687949Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a518f3fbac67c766e147ba1137ecb260e5bf79c0df03598c1b0956d837d427c

Aliases

arxiv: 1805.07352 · arxiv_version: 1805.07352v1 · doi: 10.48550/arxiv.1805.07352 · pith_short_12: RJIY6P52YZ6H · pith_short_16: RJIY6P52YZ6HM3QU · pith_short_8: RJIY6P52

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/RJIY6P52YZ6HM3QUPOQRG7WLEY \
  | 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: 8a518f3fbac67c766e147ba1137ecb260e5bf79c0df03598c1b0956d837d427c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b20a56f9a693b864d72172d09b5322fd52048d0eeb3130dbc06399166121e199",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-05-18T17:59:59Z",
    "title_canon_sha256": "5c3a965ee7b402591ab0ab57e7121267471f4807ba72780abea25999d8c44716"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.07352",
    "kind": "arxiv",
    "version": 1
  }
}