Pith Number

pith:EZRH6QU2

pith:2009:EZRH6QU2NI3UTEOGNZAKJC2EYV

not attested not anchored not stored refs pending

Primordial Circumstellar Disks in Binary Systems: Evidence for Reduced Lifetimes

Alberto Noriga-Crespo, Caer E. McCabe, Dawn E. Peterson, Deborah L. Padgett, Lori E. Allen, Lucas A. Cieza, Luisa M. Rebull, Misato Fukagawa, Nicholas L. Chapman, Sean J. Carey, Timothy Y. Brooke, Tracy L. Huard

arxiv:0903.3057 v1 · 2009-03-17 · astro-ph.SR · astro-ph.CO · astro-ph.EP · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EZRH6QU2NI3UTEOGNZAKJC2EYV}

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	2026-05-18T04:29:15.866204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26627f429a6a374991c66e40a48b44c54ade3c3f0bdeb7f749441b502746faa2

Aliases

arxiv: 0903.3057 · arxiv_version: 0903.3057v1 · doi: 10.48550/arxiv.0903.3057 · pith_short_12: EZRH6QU2NI3U · pith_short_16: EZRH6QU2NI3UTEOG · pith_short_8: EZRH6QU2

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/EZRH6QU2NI3UTEOGNZAKJC2EYV \
  | 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: 26627f429a6a374991c66e40a48b44c54ade3c3f0bdeb7f749441b502746faa2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed4d01b269927cbfa7a28104697e8480052b96f955cd60c2f2cf69c870e6fca0",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.EP",
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-03-17T22:00:35Z",
    "title_canon_sha256": "71563d1af139d5fb941af9c83999ef29a5c7f1a67678a741395abbad400d7b03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.3057",
    "kind": "arxiv",
    "version": 1
  }
}