Pith Number

pith:BSTQY3CC

pith:2017:BSTQY3CCWNGQG7OONHOGS7EICM

not attested not anchored not stored refs pending

There Are (super)Giants in the Sky: Searching for Misidentified Massive Stars in Algorithmically-Selected Quasar Catalogs

Emily Levesque, Trevor Dorn-Wallenstein

arxiv:1701.07888 v1 · 2017-01-26 · astro-ph.SR · astro-ph.GA · 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{BSTQY3CCWNGQG7OONHOGS7EICM}

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	2026-05-18T00:30:46.068928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ca70c6c42b34d037dce69dc697c8813027d5eec7c860b4f8f1e4873eeb4ac6a

Aliases

arxiv: 1701.07888 · arxiv_version: 1701.07888v1 · doi: 10.48550/arxiv.1701.07888 · pith_short_12: BSTQY3CCWNGQ · pith_short_16: BSTQY3CCWNGQG7OO · pith_short_8: BSTQY3CC

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/BSTQY3CCWNGQG7OONHOGS7EICM \
  | 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: 0ca70c6c42b34d037dce69dc697c8813027d5eec7c860b4f8f1e4873eeb4ac6a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b9cdc86aa5e0bf9b98f2f69502c5555886d7d940be2ba21c6f96bd5adf4c062",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-01-26T22:00:06Z",
    "title_canon_sha256": "0385e053c00390ce9941177820f48ea7b9eba76e3142a96666e01c6a9bcbb63f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.07888",
    "kind": "arxiv",
    "version": 1
  }
}