Pith Number

pith:272KAQ55

pith:2007:272KAQ55A3Q5VXBMQLS5EG6PDZ

not attested not anchored not stored refs pending

Steady-state evolution of debris disks around A stars

C. A. Beichman, G. Bryden, G. H. Rieke, J. S. Greaves, K. Y. L. Su, M. C. Wyatt, R. Smith

arxiv:astro-ph/0703608 v1 · 2007-03-23 · 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{272KAQ55A3Q5VXBMQLS5EG6PDZ}

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	2026-05-18T04:29:05.446501Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7f4a043bd06e1dadc2c82e5d21bcf1e59e117d1ab1af6fbfab288bd07208936

Aliases

arxiv: astro-ph/0703608 · arxiv_version: astro-ph/0703608v1 · doi: 10.48550/arxiv.astro-ph/0703608 · pith_short_12: 272KAQ55A3Q5 · pith_short_16: 272KAQ55A3Q5VXBM · pith_short_8: 272KAQ55

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/272KAQ55A3Q5VXBMQLS5EG6PDZ \
  | 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: d7f4a043bd06e1dadc2c82e5d21bcf1e59e117d1ab1af6fbfab288bd07208936

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df5b8161cb00738b42d25393fb57319104afec82eb689d116cc26a7ab22d5eb0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-03-23T10:55:40Z",
    "title_canon_sha256": "4cd0e8dea94e289cdb58f6eb325592a26b45e6ffb8c43d44172550b22fcbb704"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0703608",
    "kind": "arxiv",
    "version": 1
  }
}