Pith Number

pith:HFM3HFRQ

pith:2010:HFM3HFRQJ2U3QPX35CHBXSTZZO

not attested not anchored not stored refs pending

Dust grain growth in rho-Ophiuchi protoplanetary disks

A. Natta, K. J. Brooks, L. Ricci, L. Testi

arxiv:1008.1144 v1 · 2010-08-06 · astro-ph.SR · 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{HFM3HFRQJ2U3QPX35CHBXSTZZO}

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	2026-05-18T02:05:58.500736Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3959b396304ea9b83efbe88e1bca79cb84274988c7c1c7f13cd7c9300f6ce979

Aliases

arxiv: 1008.1144 · arxiv_version: 1008.1144v1 · doi: 10.48550/arxiv.1008.1144 · pith_short_12: HFM3HFRQJ2U3 · pith_short_16: HFM3HFRQJ2U3QPX3 · pith_short_8: HFM3HFRQ

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/HFM3HFRQJ2U3QPX35CHBXSTZZO \
  | 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: 3959b396304ea9b83efbe88e1bca79cb84274988c7c1c7f13cd7c9300f6ce979

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21ff33f0d5d5392516285c4a3e0cea8f57d5441f1b0daca56122182d5c44a994",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-08-06T09:22:53Z",
    "title_canon_sha256": "a2e95c57db2bf96a73bc576a9e59644a233d63ca7f7c2ae295f6aac6e8662bb6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.1144",
    "kind": "arxiv",
    "version": 1
  }
}