Pith Number

pith:KRHA3MG2

pith:2021:KRHA3MG27RHTPDMOARW2QLNP56

not attested not anchored not stored refs pending

The protoplanetary disc around HD 169142: circumstellar or circumbinary?

A. Bayo, \'A. Ribas, A. Zurlo, C. Pinte, D. J. Price, E. Mac\'ias, F. M\'enard, J. Calcino, J. Cuadra, M. Montesinos, N. Cuello, P. P. Poblete, S. Marino, S. P\'erez, S. Z\'u\~niga-Fern\'andez

arxiv:2111.13741 v2 · 2021-11-26 · astro-ph.EP · 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{KRHA3MG27RHTPDMOARW2QLNP56}

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	2026-07-05T03:40:52.496778Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

544e0db0dafc4f378d8e046da82dafefb58475f384fcc11385bf0fe675dc7b5b

Aliases

arxiv: 2111.13741 · arxiv_version: 2111.13741v2 · doi: 10.48550/arxiv.2111.13741 · pith_short_12: KRHA3MG27RHT · pith_short_16: KRHA3MG27RHTPDMO · pith_short_8: KRHA3MG2

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/KRHA3MG27RHTPDMOARW2QLNP56 \
  | 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: 544e0db0dafc4f378d8e046da82dafefb58475f384fcc11385bf0fe675dc7b5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9477ad5bcd32918568c9863164844975f45b046f52e240d13d97735aae5154b1",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-11-26T20:30:03Z",
    "title_canon_sha256": "5f3b8b80cc4c450a70f18991df6742846ae066846fe1e0c70d6004726228348c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.13741",
    "kind": "arxiv",
    "version": 2
  }
}