Pith Number

pith:UCJTL2S7

pith:2015:UCJTL2S75BONLYIXQJIGZEQ4OX

not attested not anchored not stored refs pending

The chemical evolution of self-gravitating primordial disks

Andrea Ferrara, Dominik R.G. Schleicher, Muhammad A. Latif, Stefano Bovino, Tommaso Grassi

arxiv:1504.06296 v2 · 2015-04-23 · 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{UCJTL2S75BONLYIXQJIGZEQ4OX}

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	2026-05-18T01:25:00.825181Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a09335ea5fe85cd5e11782506c921c75e8e7d1dceaf22d5d587bc7238c2b648e

Aliases

arxiv: 1504.06296 · arxiv_version: 1504.06296v2 · doi: 10.48550/arxiv.1504.06296 · pith_short_12: UCJTL2S75BON · pith_short_16: UCJTL2S75BONLYIX · pith_short_8: UCJTL2S7

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/UCJTL2S75BONLYIXQJIGZEQ4OX \
  | 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: a09335ea5fe85cd5e11782506c921c75e8e7d1dceaf22d5d587bc7238c2b648e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4729c98549ee01e7865fe4803b3030317916bc56cf283ad86a61c0c441a6d926",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-04-23T18:55:50Z",
    "title_canon_sha256": "979980ede71fb03323a79e7c3147e44c5b99557995542bb17d2716d702dba4cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.06296",
    "kind": "arxiv",
    "version": 2
  }
}