Pith Number

pith:K7Y2KCHX

pith:2018:K7Y2KCHXQBPCKOSCCPM3EGYNLI

not attested not anchored not stored refs pending

Evidence for the start of planet formation in a young circumstellar disk

Daniel Harsono, Jes K. J{\o}rgensen, Jon P. Ramsey, Lars E. Kristensen, Luke T. Maud, Matthijs H. D. van der Wiel, Per Bjerkeli

arxiv:1806.09649 v1 · 2018-06-25 · 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{K7Y2KCHXQBPCKOSCCPM3EGYNLI}

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	2026-05-18T00:12:23.863008Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57f1a508f7805e253a4213d9b21b0d5a1e65b0f7506cb6969c0d0d6f61219409

Aliases

arxiv: 1806.09649 · arxiv_version: 1806.09649v1 · doi: 10.48550/arxiv.1806.09649 · pith_short_12: K7Y2KCHXQBPC · pith_short_16: K7Y2KCHXQBPCKOSC · pith_short_8: K7Y2KCHX

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/K7Y2KCHXQBPCKOSCCPM3EGYNLI \
  | 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: 57f1a508f7805e253a4213d9b21b0d5a1e65b0f7506cb6969c0d0d6f61219409

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d1f0410c99da5c1df7f045343abc3b7f43adbe9d57b549363456b571965678e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-06-25T18:12:59Z",
    "title_canon_sha256": "c5439764da19dd9caeb51a66741f5ebe0565ca717712d14f8c82082ded7caca6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.09649",
    "kind": "arxiv",
    "version": 1
  }
}