Pith Number

pith:U4XXCD2Q

pith:2021:U4XXCD2QAXVXPMT254Q2I3BKZL

not attested not anchored not stored refs pending

A detailed characterization of HR 8799's debris disk with ALMA in Band 7

Alice Zurlo, Antonio S. Hales, Eric E. Mamajek, Geoffrey Bryden, Jorge Cuadra, Karl R. Stapelfeldt, Luca Matr\`a, Mark Booth, Sebastian Marino, Simon Casassus, Virginie Faramaz

arxiv:2104.02088 v1 · 2021-04-05 · 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{U4XXCD2QAXVXPMT254Q2I3BKZL}

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	2026-07-05T02:45:27.174825Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a72f710f5005eb77b27aef21a46c2acae4e483dab7d966776ba1dfcbafb423eb

Aliases

arxiv: 2104.02088 · arxiv_version: 2104.02088v1 · doi: 10.48550/arxiv.2104.02088 · pith_short_12: U4XXCD2QAXVX · pith_short_16: U4XXCD2QAXVXPMT2 · pith_short_8: U4XXCD2Q

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/U4XXCD2QAXVXPMT254Q2I3BKZL \
  | 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: a72f710f5005eb77b27aef21a46c2acae4e483dab7d966776ba1dfcbafb423eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd29ede514813ac0ba93721f91aa0c46ad61896a5b2c94fca12914979ef5eb2f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-04-05T18:00:14Z",
    "title_canon_sha256": "b06caf8b7f8d1cc25e292ab5f7874656b403a63f189b8abcd91b2a8bb3067ba9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.02088",
    "kind": "arxiv",
    "version": 1
  }
}