Pith Number

pith:CXA5NDOW

pith:2019:CXA5NDOW2OMCJ3U6OV6EUACUMJ

not attested not anchored not stored refs pending

Testing massive star evolution, star-formation history and feedback at low metallicity : Spectroscopic analysis of OB stars in the SMC Wing

A. A. C. Sander, H. Todt, J. S. Gallagher, L. Fulmer, L. M. Oskinova, R. Hainich, T. Shenar, Varsha Ramachandran, W.-R. Hamann

arxiv:1903.01762 v3 · 2019-03-05 · astro-ph.SR · 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{CXA5NDOW2OMCJ3U6OV6EUACUMJ}

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	2026-05-17T23:45:29.416235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15c1d68dd6d39824ee9e757c4a005462412323452c8e9c263863d0a1dedc21d5

Aliases

arxiv: 1903.01762 · arxiv_version: 1903.01762v3 · doi: 10.48550/arxiv.1903.01762 · pith_short_12: CXA5NDOW2OMC · pith_short_16: CXA5NDOW2OMCJ3U6 · pith_short_8: CXA5NDOW

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/CXA5NDOW2OMCJ3U6OV6EUACUMJ \
  | 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: 15c1d68dd6d39824ee9e757c4a005462412323452c8e9c263863d0a1dedc21d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb86706c7acf5ba3286aee30a1a87d1293b31583afd4b5049451804a7e0e6a1a",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-03-05T10:40:42Z",
    "title_canon_sha256": "7164d1569116c84dea1191697be74af9a2ee4ce3a48a30e2fd10f64965301388"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.01762",
    "kind": "arxiv",
    "version": 3
  }
}