Pith Number

pith:5BB5OX2Q

pith:2009:5BB5OX2Q2DSLGYPJTJCHI6EBRA

not attested not anchored not stored refs pending

Unprecedented accurate abundances: signatures of other Earths?

B. Gustafsson, D. Yong, I. Ramirez, J. Melendez, M. Asplund

arxiv:0910.0875 v1 · 2009-10-05 · 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{5BB5OX2Q2DSLGYPJTJCHI6EBRA}

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	2026-05-18T02:11:26.489993Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e843d75f50d0e4b361e99a447478818808bafb22eeb6b098ae9b007236f47c24

Aliases

arxiv: 0910.0875 · arxiv_version: 0910.0875v1 · doi: 10.48550/arxiv.0910.0875 · pith_short_12: 5BB5OX2Q2DSL · pith_short_16: 5BB5OX2Q2DSLGYPJ · pith_short_8: 5BB5OX2Q

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/5BB5OX2Q2DSLGYPJTJCHI6EBRA \
  | 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: e843d75f50d0e4b361e99a447478818808bafb22eeb6b098ae9b007236f47c24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5dcf906149c6deac52256f25f4160ab7cb0c5ab6844ce576426c1df2c748391a",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-10-05T21:50:13Z",
    "title_canon_sha256": "b841a3fd39a49992df71c67e8bef3151774827bc056b7875fddf3f004e61434e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.0875",
    "kind": "arxiv",
    "version": 1
  }
}