Pith Number

pith:WFIRCJ2U

pith:2009:WFIRCJ2UM2XFLEILUW7YJIUI7U

not attested not anchored not stored refs pending

Stringent Limits on the Polarized Submillimeter Emission from Protoplanetary Disks

Alexandre Lazarian (U. Wisconsin), A. Meredith Hughes (CfA), Daniel P. Marrone (U. Chicago, David J. Wilner (CfA), Hubble Fellow), Jansky Fellow), Jungyeon Cho (CNU Korea, Ramprasad Rao (ASIAA), Sean M. Andrews (CfA, U. Wisconsin)

arxiv:0909.1345 v1 · 2009-09-07 · 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{WFIRCJ2UM2XFLEILUW7YJIUI7U}

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	2026-05-18T02:34:30.842072Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b15111275466ae55910ba5bf84a288fd3eff10c54d4e02994827e2a231abb58b

Aliases

arxiv: 0909.1345 · arxiv_version: 0909.1345v1 · doi: 10.48550/arxiv.0909.1345 · pith_short_12: WFIRCJ2UM2XF · pith_short_16: WFIRCJ2UM2XFLEIL · pith_short_8: WFIRCJ2U

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/WFIRCJ2UM2XFLEILUW7YJIUI7U \
  | 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: b15111275466ae55910ba5bf84a288fd3eff10c54d4e02994827e2a231abb58b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45bba8998bbe2556725249e97a9da35cf2ba7ead4252e7c386f05aa2191334c9",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-09-07T21:37:49Z",
    "title_canon_sha256": "ea1692722b2771106fa6da916d857ab87d1651c9d3c92c7f77587045edc1950d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.1345",
    "kind": "arxiv",
    "version": 1
  }
}