Pith Number

pith:JUNPKKDB

pith:2021:JUNPKKDB2DIDWNY7KSIP4MLLWR

not attested not anchored not stored refs pending

On the effects of the Initial Mass Function on Galactic chemical enrichment

A. Bressan, A. Lapi, A. Slemer, L. Boco, L. Pantoni, L. Silva, M. Spera, P. Marigo, S. Goswami, V. Grisoni

arxiv:2104.05680 v1 · 2021-04-12 · astro-ph.GA · 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{JUNPKKDB2DIDWNY7KSIP4MLLWR}

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	2026-07-05T02:53:40.953708Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d1af52861d0d03b371f5490fe316bb45c354aa868eb7aef621b12af261acb44

Aliases

arxiv: 2104.05680 · arxiv_version: 2104.05680v1 · doi: 10.48550/arxiv.2104.05680 · pith_short_12: JUNPKKDB2DID · pith_short_16: JUNPKKDB2DIDWNY7 · pith_short_8: JUNPKKDB

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/JUNPKKDB2DIDWNY7KSIP4MLLWR \
  | 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: 4d1af52861d0d03b371f5490fe316bb45c354aa868eb7aef621b12af261acb44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e954423a24c01c457aaeaf7a9f1f177380b66a66a2f1cd7b5f65e94fc0e760c",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-04-12T17:43:51Z",
    "title_canon_sha256": "d90ca0634b928c432c506a5365459a7f02069c6e13a3a18ebfdfc7ca987d72df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.05680",
    "kind": "arxiv",
    "version": 1
  }
}