Pith Number

pith:7EXTXICX

pith:2018:7EXTXICX5L3GIUANSCQOWEZ53Z

not attested not anchored not stored refs pending

Asymmetric Ejecta of Cool Supergiants and Hypergiants in the Massive Cluster Westerlund 1

D. Fenech, H. Andrews, J. S. Clark, L. Hindson, R. K. Prinja

arxiv:1803.07008 v1 · 2018-03-19 · 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{7EXTXICX5L3GIUANSCQOWEZ53Z}

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	2026-05-18T00:19:20.230758Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f92f3ba057eaf664500d90a0eb133dde73053039791b55383a798db2e1e0797a

Aliases

arxiv: 1803.07008 · arxiv_version: 1803.07008v1 · doi: 10.48550/arxiv.1803.07008 · pith_short_12: 7EXTXICX5L3G · pith_short_16: 7EXTXICX5L3GIUAN · pith_short_8: 7EXTXICX

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/7EXTXICX5L3GIUANSCQOWEZ53Z \
  | 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: f92f3ba057eaf664500d90a0eb133dde73053039791b55383a798db2e1e0797a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa523b7cbc7c3c5c1e1a97b7e95958dd6e92300b23e325d3f2de018f8e5fd4d3",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-03-19T16:03:31Z",
    "title_canon_sha256": "dc29f6d9cc67342aa84c7fb419a0b07274a781475b8d18a7a580b7499b98b995"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.07008",
    "kind": "arxiv",
    "version": 1
  }
}