Pith Number

pith:B7FB7POI

pith:2015:B7FB7POIDWQWAM6DWQAPDQ457W

not attested not anchored not stored refs pending

Spiral Arms in Gravitationally Unstable Protoplanetary Disks as Imaged in Scattered Light

Cassandra Hall (University of Edinburgh), Eugene Chiang (UC Bekerley), Ken Rice (University of Edinburgh), Ruobing Dong (UC Berkeley)

arxiv:1510.00396 v1 · 2015-10-01 · 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{B7FB7POIDWQWAM6DWQAPDQ457W}

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	2026-05-18T01:28:45.402174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0fca1fbdc81da16033c3b400f1c39dfd901da5b7cdd817734017684fe6aca83c

Aliases

arxiv: 1510.00396 · arxiv_version: 1510.00396v1 · doi: 10.48550/arxiv.1510.00396 · pith_short_12: B7FB7POIDWQW · pith_short_16: B7FB7POIDWQWAM6D · pith_short_8: B7FB7POI

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/B7FB7POIDWQWAM6DWQAPDQ457W \
  | 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: 0fca1fbdc81da16033c3b400f1c39dfd901da5b7cdd817734017684fe6aca83c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de549e9c8d3d9e521121b073cb1d7492ba92661035c0fc82271fb0f40fcfa7c4",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-10-01T20:06:18Z",
    "title_canon_sha256": "d4c8c5cc2fef409c89427ab06fc9ce02ea4abd4fbe9ba0446d3f8b4575a67f68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.00396",
    "kind": "arxiv",
    "version": 1
  }
}