Pith Number

pith:EYWBV46O

pith:2007:EYWBV46OO3XIFHGDD2VW2IQWIQ

not attested not anchored not stored refs pending

Spitzer/IRAC and JHKs Observations of h & chi Persei: Constraints on Protoplanetary Disk and Massive Cluster Evolution at ~ 10^{7} yr

(2) Steward Observatory/University of Arizona, (3) Lowell Observatory, (4) Boston University), A. Grabau (4), B. Taylor (3), D.P. Clemens (4), D. Sarcia (4), E. Dunham (3), E. T. Young (2), E. V. Tollestrup (4), & G. Mace (3) ((1) Harvard-Smithsonian Center for Astrophysics, G. Rieke (2), J. Muzerolle (2), L. Prato (3), M. Buie (3), S. J. Kenyon (1), Thayne Currie (1), Zoltan Balog (2)

arxiv:astro-ph/0701441 v2 · 2007-01-15 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EYWBV46OO3XIFHGDD2VW2IQWIQ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T04:29:07.229041Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

262c1af3ce76ee829cc31eab6d2216443821d4bcb384ba5ac7d40fe9a43b19b7

Aliases

arxiv: astro-ph/0701441 · arxiv_version: astro-ph/0701441v2 · doi: 10.48550/arxiv.astro-ph/0701441 · pith_short_12: EYWBV46OO3XI · pith_short_16: EYWBV46OO3XIFHGD · pith_short_8: EYWBV46O

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/EYWBV46OO3XIFHGDD2VW2IQWIQ \
  | 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: 262c1af3ce76ee829cc31eab6d2216443821d4bcb384ba5ac7d40fe9a43b19b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5981a53bd0eb85d77a337a26402c967f7b73f29c20e2c0cf707bb046004a3c1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-01-15T23:59:55Z",
    "title_canon_sha256": "f41d2f5769d0d79ea8e51449c3d114ba94d3e546ac9739a344ffe922bb858657"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0701441",
    "kind": "arxiv",
    "version": 2
  }
}