Pith Number

pith:LWWPU2YI

pith:2012:LWWPU2YIWOBU2LCVBORTPKDLRN

not attested not anchored not stored refs pending

The growth and hydrodynamic collapse of a protoplanet envelope

Ben A. Ayliffe, Matthew R. Bate

arxiv:1208.5513 v1 · 2012-08-27 · 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{LWWPU2YIWOBU2LCVBORTPKDLRN}

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	2026-05-18T01:54:51.072751Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5dacfa6b08b3834d2c550ba337a86b8b67382251bc5ab294e8428be4d4ad3edc

Aliases

arxiv: 1208.5513 · arxiv_version: 1208.5513v1 · doi: 10.48550/arxiv.1208.5513 · pith_short_12: LWWPU2YIWOBU · pith_short_16: LWWPU2YIWOBU2LCV · pith_short_8: LWWPU2YI

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/LWWPU2YIWOBU2LCVBORTPKDLRN \
  | 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: 5dacfa6b08b3834d2c550ba337a86b8b67382251bc5ab294e8428be4d4ad3edc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfda5ac9626bbcf7a8e9712f400c3c155de521319163c0ae45b9d3e91a3ec42c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2012-08-27T21:38:15Z",
    "title_canon_sha256": "e5e28801e1bbcfd1886ad8fc4f19a2b2eb1eece89accdfcc35a751315c0f4a72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.5513",
    "kind": "arxiv",
    "version": 1
  }
}