Pith Number

pith:HJW6R2QN

pith:2015:HJW6R2QN5EUGKPCT6HUAYT4AH4

not attested not anchored not stored refs pending

Observations of the extreme runaway HD271791: nucleosynthesis in a core-collapse supernova

A. Irrgang, K. Butler, N. Przybilla, U. Heber, V. Schaffenroth

arxiv:1501.07816 v1 · 2015-01-30 · 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{HJW6R2QN5EUGKPCT6HUAYT4AH4}

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	2026-05-18T02:28:14.075149Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a6de8ea0de928653c53f1e80c4f803f132ef0579c9c99200ab73380bf15ab38

Aliases

arxiv: 1501.07816 · arxiv_version: 1501.07816v1 · doi: 10.48550/arxiv.1501.07816 · pith_short_12: HJW6R2QN5EUG · pith_short_16: HJW6R2QN5EUGKPCT · pith_short_8: HJW6R2QN

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/HJW6R2QN5EUGKPCT6HUAYT4AH4 \
  | 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: 3a6de8ea0de928653c53f1e80c4f803f132ef0579c9c99200ab73380bf15ab38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87d4aab8ed143f9f2a24e96710c03a3c7184ee94a114ce29544eea5d612b2cfc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-01-30T15:51:09Z",
    "title_canon_sha256": "8a70f35d369b57b1ed63382e0419932f5620bef095b3e3593bf4801588c71f0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.07816",
    "kind": "arxiv",
    "version": 1
  }
}