Pith Number

pith:HF66SJYV

pith:2006:HF66SJYVQ5PUGCJQPDOPJCM4AR

not attested not anchored not stored refs pending

Spitzer observations of the Orion OB1 association: second generation dust disks at 5-10 Myr

A. Quintero, C. Briceno, J. Hernandez, J. Muzerolle, L. Hartmann, N. Calvet

arxiv:astro-ph/0607562 v1 · 2006-07-25 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HF66SJYVQ5PUGCJQPDOPJCM4AR}

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	2026-05-18T04:28:58.247867Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

397de92715875f43093078dcf4899c04747e60ad9c084f01316ae8d667429543

Aliases

arxiv: astro-ph/0607562 · arxiv_version: astro-ph/0607562v1 · doi: 10.48550/arxiv.astro-ph/0607562 · pith_short_12: HF66SJYVQ5PU · pith_short_16: HF66SJYVQ5PUGCJQ · pith_short_8: HF66SJYV

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/HF66SJYVQ5PUGCJQPDOPJCM4AR \
  | 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: 397de92715875f43093078dcf4899c04747e60ad9c084f01316ae8d667429543

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "664646932f16dc4f3631addd6da5afa3b465c919dd265054c13989b2d9449b29",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-07-25T14:21:24Z",
    "title_canon_sha256": "a73ab02c920d20e275640f74213b007f82cd357ce5d12c9b1f9bcd67d0cef8b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0607562",
    "kind": "arxiv",
    "version": 1
  }
}