Pith Number

pith:GVN3TR5U

pith:2018:GVN3TR5UBMY6DCWWR3HVMM2E3B

not attested not anchored not stored refs pending

The beginning of nonlinear stage of evolution of protostars at $ z=20

V. K. Dubrovich

arxiv:1805.04430 v1 · 2018-05-11 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GVN3TR5UBMY6DCWWR3HVMM2E3B}

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	2026-05-18T00:16:10.364986Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

355bb9c7b40b31e18ad68ecf563344d863746a8f1268e2615cf3cb5c3ad7e4d7

Aliases

arxiv: 1805.04430 · arxiv_version: 1805.04430v1 · doi: 10.48550/arxiv.1805.04430 · pith_short_12: GVN3TR5UBMY6 · pith_short_16: GVN3TR5UBMY6DCWW · pith_short_8: GVN3TR5U

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/GVN3TR5UBMY6DCWWR3HVMM2E3B \
  | 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: 355bb9c7b40b31e18ad68ecf563344d863746a8f1268e2615cf3cb5c3ad7e4d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d665e5211ab27211a11441558a9d8c422644ece15455a726d46437858070ddc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-05-11T14:51:01Z",
    "title_canon_sha256": "454c31df45101c57f12d9768ab5aa2e8649ed3a8d943ab50e33d73a39ed5c42d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.04430",
    "kind": "arxiv",
    "version": 1
  }
}