Pith Number

pith:XZ5AHRO5

pith:2019:XZ5AHRO5Q6U2SAKV7VXSKRHALW

not attested not anchored not stored refs pending

The widest H$\alpha$ survey of accreting protoplanets around nearby transition disks

A. Zurlo, G. Cugno, H. Canovas, L. Cieza, M. Montesinos, N. Huelamo, S. Casassus, S. Perez, V. Christiaens

arxiv:1912.04911 v2 · 2019-12-10 · astro-ph.EP · astro-ph.IM · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XZ5AHRO5Q6U2SAKV7VXSKRHALW}

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	2026-07-05T00:34:49.618039Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be7a03c5dd87a9a90155fd6f2544e05dbff21c18e80c57f366997da266b61c9b

Aliases

arxiv: 1912.04911 · arxiv_version: 1912.04911v2 · doi: 10.48550/arxiv.1912.04911 · pith_short_12: XZ5AHRO5Q6U2 · pith_short_16: XZ5AHRO5Q6U2SAKV · pith_short_8: XZ5AHRO5

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/XZ5AHRO5Q6U2SAKV7VXSKRHALW \
  | 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: be7a03c5dd87a9a90155fd6f2544e05dbff21c18e80c57f366997da266b61c9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f8cb9b0cc1dd2468ac4d04fa232b8ffadcc5241a27ff025154474fc829dd1b7",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-12-10T19:00:04Z",
    "title_canon_sha256": "80abfd6fabe37d990e7b4a2b365a1d9ec7cb22b6f7014e0c4f407870776f34d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.04911",
    "kind": "arxiv",
    "version": 2
  }
}