Pith Number

pith:HOXF3HW4

pith:2026:HOXF3HW4NPJMAE6RVXUBCWIDIX

not attested not anchored not stored refs pending

Weak-CN Stars Are Ordinary Cool Red Supergiants

Douglas Grion Filho, Elliot M. Kim, Evan N. Kirby, Puragra Guhathakurta, Yuan-Sen Ting

arxiv:2605.30733 v1 · 2026-05-29 · 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{HOXF3HW4NPJMAE6RVXUBCWIDIX}

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	2026-06-01T01:03:13.136394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bae5d9edc6bd2c013d1ade811590345c3b49b10d82071c48b5517e2070394ae

Aliases

arxiv: 2605.30733 · arxiv_version: 2605.30733v1 · doi: 10.48550/arxiv.2605.30733 · pith_short_12: HOXF3HW4NPJM · pith_short_16: HOXF3HW4NPJMAE6R · pith_short_8: HOXF3HW4

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/HOXF3HW4NPJMAE6RVXUBCWIDIX \
  | 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: 3bae5d9edc6bd2c013d1ade811590345c3b49b10d82071c48b5517e2070394ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9618dcaed3c74d30b0e0f08d38e2e811c327404f19da6b73c743952221ada015",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2026-05-29T01:52:33Z",
    "title_canon_sha256": "0e65f65c50fe6d3a1ba9d1da4b641f8b65d012e30a1713c3d78dfd00872d8c8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.30733",
    "kind": "arxiv",
    "version": 1
  }
}