Pith Number

pith:HKPDVGOQ

pith:2007:HKPDVGOQ55MPJMOSFBGAF724AG

not attested not anchored not stored refs pending

Born Again Protoplanetary Disk Around Mira B

C. Packham, D. Ciardi, J.D. Monnier, J.M. De Buizer, J.P. Lloyd, M.J. Ireland, P.G. Tuthill, R.W. Cohen, T. Hayward

arxiv:astro-ph/0703244 v1 · 2007-03-10 · 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{HKPDVGOQ55MPJMOSFBGAF724AG}

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	2026-05-18T04:29:05.797263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a9e3a99d0ef58f4b1d2284c02ff5c01b8b050950a684a1a8b61da1d599ac84d

Aliases

arxiv: astro-ph/0703244 · arxiv_version: astro-ph/0703244v1 · doi: 10.48550/arxiv.astro-ph/0703244 · pith_short_12: HKPDVGOQ55MP · pith_short_16: HKPDVGOQ55MPJMOS · pith_short_8: HKPDVGOQ

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/HKPDVGOQ55MPJMOSFBGAF724AG \
  | 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: 3a9e3a99d0ef58f4b1d2284c02ff5c01b8b050950a684a1a8b61da1d599ac84d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c79bf7d0eb80de8c435a44eed8c3a955dd2fbad4d3fc86548eec444de89a80e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-03-10T21:40:30Z",
    "title_canon_sha256": "8820d5f1120401c2539cfc48d5fb036ed5957c941a3e892cb13e3f30eec91be2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0703244",
    "kind": "arxiv",
    "version": 1
  }
}