Pith Number

pith:NMLFXJWR

pith:2009:NMLFXJWRNNTPQOSWIZR5CCAFPE

not attested not anchored not stored refs pending

Candidate Coronagraphic Detections of Protoplanetary Disks around Four Young Stars

J.L. Karr, M. Tamura, N. Ohashi, T. Kudo

arxiv:0911.5583 v1 · 2009-11-30 · 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{NMLFXJWRNNTPQOSWIZR5CCAFPE}

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	2026-05-18T02:10:35.719225Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b165ba6d16b66f83a564663d108057922bf54fc924c493b0b9cd26f1646032c

Aliases

arxiv: 0911.5583 · arxiv_version: 0911.5583v1 · doi: 10.48550/arxiv.0911.5583 · pith_short_12: NMLFXJWRNNTP · pith_short_16: NMLFXJWRNNTPQOSW · pith_short_8: NMLFXJWR

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/NMLFXJWRNNTPQOSWIZR5CCAFPE \
  | 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: 6b165ba6d16b66f83a564663d108057922bf54fc924c493b0b9cd26f1646032c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad593065395b2e8ff63f5234a5bc26284e7c59f38f261445d34b42b1f466d52b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-11-30T09:09:27Z",
    "title_canon_sha256": "811fe28c87ddf182034c989bab3f323c941b6a71c470c3ff9ca67d090a7f746e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.5583",
    "kind": "arxiv",
    "version": 1
  }
}