Pith Number

pith:P4QN2LDS

pith:2016:P4QN2LDSH4TKOT5UPVI3CVPEMM

not attested not anchored not stored refs pending

Mass constraint for a planet in a protoplanetary disk from the gap width

Hidekazu Tanaka, Kazuhiro D. Kanagawa, Munetake Momose, Takashi Tsukagoshi, Takayuki Muto, Takayuki Tanigawa, Taku Takeuchi

arxiv:1603.03853 v1 · 2016-03-12 · 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{P4QN2LDSH4TKOT5UPVI3CVPEMM}

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	2026-05-18T01:15:41.797077Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f20dd2c723f26a74fb47d51b155e46328c7c7de1c5eef695ee7f5c126592eb9

Aliases

arxiv: 1603.03853 · arxiv_version: 1603.03853v1 · doi: 10.48550/arxiv.1603.03853 · pith_short_12: P4QN2LDSH4TK · pith_short_16: P4QN2LDSH4TKOT5U · pith_short_8: P4QN2LDS

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/P4QN2LDSH4TKOT5UPVI3CVPEMM \
  | 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: 7f20dd2c723f26a74fb47d51b155e46328c7c7de1c5eef695ee7f5c126592eb9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e738027cf65b3efdd1aac152c623462a1fd0b4111babf7a99e07b400efe461f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2016-03-12T03:03:11Z",
    "title_canon_sha256": "3205c3377fcd4cf3cafbc5aed1f6bd95af9267ad186f4b5deef83b36e4c7945a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.03853",
    "kind": "arxiv",
    "version": 1
  }
}