Pith Number

pith:TH2REBVP

pith:2016:TH2REBVP7WKBN2UOUX5CKZQPYG

not attested not anchored not stored refs pending

UV spectroscopy of the blue supergiant SBW1: the remarkably weak wind of a SN 1987A analog

Jose H. Groh, Kevin France, Nathan Smith, Richard McCray

arxiv:1607.01055 v1 · 2016-07-04 · astro-ph.SR · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TH2REBVP7WKBN2UOUX5CKZQPYG}

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	2026-05-18T00:46:16.621368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99f51206affd9416ea8ea5fa25660fc18f3c7454fd9dc8deb232c239ffb135e6

Aliases

arxiv: 1607.01055 · arxiv_version: 1607.01055v1 · doi: 10.48550/arxiv.1607.01055 · pith_short_12: TH2REBVP7WKB · pith_short_16: TH2REBVP7WKBN2UO · pith_short_8: TH2REBVP

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/TH2REBVP7WKBN2UOUX5CKZQPYG \
  | 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: 99f51206affd9416ea8ea5fa25660fc18f3c7454fd9dc8deb232c239ffb135e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8420501c5f6dd014de4b1de9eafd133eb07bc077e1459a578a26a8aef58a719c",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-07-04T21:27:43Z",
    "title_canon_sha256": "30c65acf88db62c6367d185739d66b6971c63ae672555f80328f6e9446757af5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.01055",
    "kind": "arxiv",
    "version": 1
  }
}