Pith Number

pith:ZTZ7J5XW

pith:2018:ZTZ7J5XWX2LMPQGOBVA5U7XL5K

not attested not anchored not stored refs pending

Long-lived protoplanetary disks in multiple systems: the VLA view of HD 98800

\'Alvaro Ribas, Catherine C. Espaillat, Enrique Mac\'ias, Gaspard Duch\^ene

arxiv:1808.02493 v3 · 2018-08-07 · 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{ZTZ7J5XWX2LMPQGOBVA5U7XL5K}

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	2026-05-18T00:03:45.807978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccf3f4f6f6be96c7c0ce0d41da7eebea99bb9c99e2251ef64a4012c311597310

Aliases

arxiv: 1808.02493 · arxiv_version: 1808.02493v3 · doi: 10.48550/arxiv.1808.02493 · pith_short_12: ZTZ7J5XWX2LM · pith_short_16: ZTZ7J5XWX2LMPQGO · pith_short_8: ZTZ7J5XW

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/ZTZ7J5XWX2LMPQGOBVA5U7XL5K \
  | 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: ccf3f4f6f6be96c7c0ce0d41da7eebea99bb9c99e2251ef64a4012c311597310

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e1c8a3bf77d57f96193d495a17fe80e13b530c93e1e88bc7e9481b89682cac1",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-08-07T18:00:04Z",
    "title_canon_sha256": "3e31a49221a9672d159fb8aab0d0e272480c5172d0c9285f544c49198def9f99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.02493",
    "kind": "arxiv",
    "version": 3
  }
}