Pith Number

pith:ACE3D3GL

pith:2015:ACE3D3GLNOOD5ZQIKDN7PAFPQH

not attested not anchored not stored refs pending

Dust trapping by spiral arms in gravitationally unstable protostellar discs

Giovanni Dipierro, Giuseppe Lodato, Leonardo Testi, Paola Pinilla

arxiv:1504.08099 v1 · 2015-04-30 · astro-ph.SR · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ACE3D3GLNOOD5ZQIKDN7PAFPQH}

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	2026-05-18T01:35:48.188451Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0089b1eccb6b9c3ee60850dbf780af81cc5d80d2efc31d832c1d15cc717045d9

Aliases

arxiv: 1504.08099 · arxiv_version: 1504.08099v1 · doi: 10.48550/arxiv.1504.08099 · pith_short_12: ACE3D3GLNOOD · pith_short_16: ACE3D3GLNOOD5ZQI · pith_short_8: ACE3D3GL

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/ACE3D3GLNOOD5ZQIKDN7PAFPQH \
  | 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: 0089b1eccb6b9c3ee60850dbf780af81cc5d80d2efc31d832c1d15cc717045d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0035109b92cefc03bfa8cf3a68b5ed9d6c42e39e9c2b498b26391c63e7ccfbb",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-04-30T07:16:54Z",
    "title_canon_sha256": "4d13eec3604100b14d522fa4da0156e561f705c87074af8b84620ccf4d5587a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.08099",
    "kind": "arxiv",
    "version": 1
  }
}