Pith Number

pith:4QSYTRQW

pith:2024:4QSYTRQWFKKHS2FTVBTDX6EHON

not attested not anchored not stored refs pending

PDS 70b Shows Stellar-like Carbon-to-oxygen Ratio

Andrew Skemer, Ashley Baker, Benjamin Calvin, Ben Sappey, Chih-Chun Hsu, Clarissa R. Do \'O, Daniel Echeverri, Dimitri Mawet, Evan Morris, Geoffrey A. Blake, Gregory W. Doppmann, Jacklyn Pezzato-Rovner, Jacques-Robert Delorme, Jason J. Wang, Jean-Baptiste Ruffio, Jerry W. Xuan, Ji Wang, J. Kent Wallace, Joshua Liberman, Julianne Cronin, Katelyn Horstman, Luke Finnerty, Michael P. Fitzgerald, Nemanja Jovanovic, Randall Bartos, Ronald A. L\'opez, Sylvain Cetre, Tobias Schofield, Yapeng Zhang, Yinzi Xin

arxiv:2411.15117 v2 · 2024-11-22 · astro-ph.EP · 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{4QSYTRQWFKKHS2FTVBTDX6EHON}

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	2026-07-05T09:52:40.657544Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e42589c6162a947968b3a8663bf8877364d0cce08f603aa1b37f0ea3ed0f5f10

Aliases

arxiv: 2411.15117 · arxiv_version: 2411.15117v2 · doi: 10.48550/arxiv.2411.15117 · pith_short_12: 4QSYTRQWFKKH · pith_short_16: 4QSYTRQWFKKHS2FT · pith_short_8: 4QSYTRQW

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/4QSYTRQWFKKHS2FTVBTDX6EHON \
  | 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: e42589c6162a947968b3a8663bf8877364d0cce08f603aa1b37f0ea3ed0f5f10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e03503fd5c50f36c08cc4c11fecef69803d0e744ed6e2f89e641240a1fc3a7bc",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2024-11-22T18:33:52Z",
    "title_canon_sha256": "6f2a0b3ec412d7a1b22253e406f8cabad7ca6f034b2bdf5e6eefcef2ccc48712"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2411.15117",
    "kind": "arxiv",
    "version": 2
  }
}