Pith Number

pith:UUB2DXSR

pith:2009:UUB2DXSR4YJ7YHYN3FOD4PCDGO

not attested not anchored not stored refs pending

The End of Amnesia: Measuring the Metallicities of Type Ia SN Progenitors with Manganese Lines in Supernova Remnants

Carles Badenes, Eduardo Bravo, John P. Hughes

arxiv:0902.0397 v1 · 2009-02-02 · 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{UUB2DXSR4YJ7YHYN3FOD4PCDGO}

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	2026-05-18T02:14:54.561600Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a503a1de51e613fc1f0dd95c3e3c4333b0217dcf20590ed9cec5336e4b44d256

Aliases

arxiv: 0902.0397 · arxiv_version: 0902.0397v1 · doi: 10.48550/arxiv.0902.0397 · pith_short_12: UUB2DXSR4YJ7 · pith_short_16: UUB2DXSR4YJ7YHYN · pith_short_8: UUB2DXSR

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/UUB2DXSR4YJ7YHYN3FOD4PCDGO \
  | 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: a503a1de51e613fc1f0dd95c3e3c4333b0217dcf20590ed9cec5336e4b44d256

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d142c758c281b993a459530dfe4a0da943caa5aa14b29841f4ce19cb57948bb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-02-02T22:49:44Z",
    "title_canon_sha256": "851876d932fa10c371872abd666260dd149b8474ec153bf9b549be7bbaa4f790"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.0397",
    "kind": "arxiv",
    "version": 1
  }
}