Pith Number

pith:HP3NRPC5

pith:2009:HP3NRPC5RQYCUG5KGA2LGKAUVV

not attested not anchored not stored refs pending

Resolving the hot dust around HD69830 and eta Corvi with MIDI and VISIR

C.A. Haniff, M.C. Wyatt, R. Smith

arxiv:0906.3704 v1 · 2009-06-19 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HP3NRPC5RQYCUG5KGA2LGKAUVV}

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	2026-05-18T02:13:18.675129Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bf6d8bc5d8c302a1baa3034b32814ad76f1fa9f5556907b36097b7dd60f7fb1

Aliases

arxiv: 0906.3704 · arxiv_version: 0906.3704v1 · doi: 10.48550/arxiv.0906.3704 · pith_short_12: HP3NRPC5RQYC · pith_short_16: HP3NRPC5RQYCUG5K · pith_short_8: HP3NRPC5

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/HP3NRPC5RQYCUG5KGA2LGKAUVV \
  | 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: 3bf6d8bc5d8c302a1baa3034b32814ad76f1fa9f5556907b36097b7dd60f7fb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "790a79371a9ab083044b3299cebb44a172eadbf3ec1198df8158bebbdf3ab238",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-06-19T16:09:27Z",
    "title_canon_sha256": "34bda69944acfd13254afc91b27ca675e0c3927c9400f7586416500e524016e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.3704",
    "kind": "arxiv",
    "version": 1
  }
}