Pith Number

pith:BJ6HDUOJ

pith:2017:BJ6HDUOJTM5KEYAAEOICEWTTTH

not attested not anchored not stored refs pending

The role of gap edge instabilities in setting the depth of planet gaps in protoplanetary discs

Paul Hallam, Sijme-Jan Paardekooper

arxiv:1705.07528 v1 · 2017-05-22 · 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{BJ6HDUOJTM5KEYAAEOICEWTTTH}

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	2026-05-18T00:41:32.407980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a7c71d1c99b3aa260002390225a7399c561bb5ade8f30a79d1223516ab1f214

Aliases

arxiv: 1705.07528 · arxiv_version: 1705.07528v1 · doi: 10.48550/arxiv.1705.07528 · pith_short_12: BJ6HDUOJTM5K · pith_short_16: BJ6HDUOJTM5KEYAA · pith_short_8: BJ6HDUOJ

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/BJ6HDUOJTM5KEYAAEOICEWTTTH \
  | 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: 0a7c71d1c99b3aa260002390225a7399c561bb5ade8f30a79d1223516ab1f214

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b441a26da8ebcde396f1c2d8d3f193e07c0481c4c8dd8359394befcdb0abd0c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2017-05-22T01:11:45Z",
    "title_canon_sha256": "2c5894668907bf33d200336310a07a2bc03b1ea9d2a1db45e9e6a79f74c60719"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.07528",
    "kind": "arxiv",
    "version": 1
  }
}