Pith Number

pith:SKRP3DIY

pith:2023:SKRP3DIYM4MA6L3CWL3OFLGUAB

not attested not anchored not stored refs pending

The evolution and impact of 3000 M$_\odot$ stars in the early Universe

D. Nandal, E. Farrell, G. Buldgen, G. Meynet, S. Ekstrom

arxiv:2309.04435 v2 · 2023-09-08 · astro-ph.SR · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SKRP3DIYM4MA6L3CWL3OFLGUAB}

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	2026-07-05T06:50:17.325658Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92a2fd8d1867180f2f62b2f6e2acd4004081bade307e802ad1940dfa7cfcaf03

Aliases

arxiv: 2309.04435 · arxiv_version: 2309.04435v2 · doi: 10.48550/arxiv.2309.04435 · pith_short_12: SKRP3DIYM4MA · pith_short_16: SKRP3DIYM4MA6L3C · pith_short_8: SKRP3DIY

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/SKRP3DIYM4MA6L3CWL3OFLGUAB \
  | 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: 92a2fd8d1867180f2f62b2f6e2acd4004081bade307e802ad1940dfa7cfcaf03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "707294f50829baa49657e790587d05ba2ee682aac8cddfb1e3c2e66bebf7715a",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2023-09-08T16:59:58Z",
    "title_canon_sha256": "62328ba63af26dce76ac77c96a16c7dc4ad21f46b4c7007cf28d3d4fb79d1368"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2309.04435",
    "kind": "arxiv",
    "version": 2
  }
}