Pith Number

pith:PRJQJ6ZC

pith:2007:PRJQJ6ZCKCCNHPWJW55G7Z32QH

not attested not anchored not stored refs pending

Debris Disks Around Nearby Stars with Circumstellar Gas

Aki Roberge, Alycia J. Weinberger

arxiv:0711.4561 v1 · 2007-11-28 · 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{PRJQJ6ZCKCCNHPWJW55G7Z32QH}

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	2026-05-18T04:36:41.715433Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c5304fb225084d3bec9b77a6fe77a81c8c7c9fa9d3212c312891901123f8d79

Aliases

arxiv: 0711.4561 · arxiv_version: 0711.4561v1 · doi: 10.48550/arxiv.0711.4561 · pith_short_12: PRJQJ6ZCKCCN · pith_short_16: PRJQJ6ZCKCCNHPWJ · pith_short_8: PRJQJ6ZC

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/PRJQJ6ZCKCCNHPWJW55G7Z32QH \
  | 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: 7c5304fb225084d3bec9b77a6fe77a81c8c7c9fa9d3212c312891901123f8d79

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9a07c8695dcd4f8a6b46a72ba876be05d587a656b0428d7e2881f3eec4e49e5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-11-28T19:26:16Z",
    "title_canon_sha256": "a44fee2c165404a9b502c173a1f94a557100edc8ed832cd0b3765e64214d23eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.4561",
    "kind": "arxiv",
    "version": 1
  }
}