Pith Number

pith:HP3ZTKOF

pith:2009:HP3ZTKOFH3I3P4HZSLAMR5MUR3

not attested not anchored not stored refs pending

Observational diagnostics of gas in protoplanetary disks

Andres Carmona

arxiv:0911.2271 v1 · 2009-11-11 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HP3ZTKOFH3I3P4HZSLAMR5MUR3}

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	2026-05-18T02:10:48.512420Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bf799a9c53ed1b7f0f992c0c8f5948ed859cc3a43ebdec277ea272ec596358b

Aliases

arxiv: 0911.2271 · arxiv_version: 0911.2271v1 · doi: 10.48550/arxiv.0911.2271 · pith_short_12: HP3ZTKOFH3I3 · pith_short_16: HP3ZTKOFH3I3P4HZ · pith_short_8: HP3ZTKOF

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/HP3ZTKOFH3I3P4HZSLAMR5MUR3 \
  | 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: 3bf799a9c53ed1b7f0f992c0c8f5948ed859cc3a43ebdec277ea272ec596358b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef2bac03120c246b59b2f05215c5c0eaee303981c0caa8d5a0af941939bc5fa3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-11-11T23:37:30Z",
    "title_canon_sha256": "33a4134ebb39f0b6155d05a3f9f34ae3d0b41183013bd017cb3388a84637d188"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.2271",
    "kind": "arxiv",
    "version": 1
  }
}