Pith Number

pith:W2RSLW5E

pith:2010:W2RSLW5E67LFDVRMF6LRW6V3YO

not attested not anchored not stored refs pending

Neutron-rich chromium isotope anomalies in supernova nanoparticles

Chi Ma, Dimitri Papanastassiou, James Chen, John Eiler, Julien Stodolna, Laurent Remusat, Mathieu Roskosz, Nicolas Dauphas, Yunbin Guan

arxiv:1007.4016 v1 · 2010-07-22 · 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{W2RSLW5E67LFDVRMF6LRW6V3YO}

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	2026-05-18T02:06:11.342187Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6a325dba4f7d651d62c2f971b7abbc39c22ce778491377ed986bb7257d9d79a

Aliases

arxiv: 1007.4016 · arxiv_version: 1007.4016v1 · doi: 10.48550/arxiv.1007.4016 · pith_short_12: W2RSLW5E67LF · pith_short_16: W2RSLW5E67LFDVRM · pith_short_8: W2RSLW5E

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/W2RSLW5E67LFDVRMF6LRW6V3YO \
  | 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: b6a325dba4f7d651d62c2f971b7abbc39c22ce778491377ed986bb7257d9d79a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb86dfc0cc9f95ac27aceaf3ec61b44c5b584a4d77c6c9bf56a928f8bf34b839",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-07-22T21:53:22Z",
    "title_canon_sha256": "c1b1279a86fea6a2e256784b5f9326db2a4b7ac4ef1806ee94f4b8d082ed989f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.4016",
    "kind": "arxiv",
    "version": 1
  }
}