Pith Number

pith:O6ZRSL7R

pith:2010:O6ZRSL7R7M2NCHBTXL2DFQ22H7

not attested not anchored not stored refs pending

Anomalous Silicate Dust Emission in the Type 1 LINER Nucleus of M81

Aigen Li, A. Zezas, G. Fazio, Howard A. Smith, J-S Huang, L. Spinoglio, M. Koehler, M. L. N. Ashby, M. Marengo, M.P. Li, S. Willner, Y.L. Wu, Z. Wang

arxiv:1004.2277 v1 · 2010-04-13 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O6ZRSL7R7M2NCHBTXL2DFQ22H7}

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	2026-05-18T02:08:05.955258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77b3192ff1fb34d11c33baf432c35a3fe87e84314f0eb7c265f8e853d07fb181

Aliases

arxiv: 1004.2277 · arxiv_version: 1004.2277v1 · doi: 10.48550/arxiv.1004.2277 · pith_short_12: O6ZRSL7R7M2N · pith_short_16: O6ZRSL7R7M2NCHBT · pith_short_8: O6ZRSL7R

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/O6ZRSL7R7M2NCHBTXL2DFQ22H7 \
  | 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: 77b3192ff1fb34d11c33baf432c35a3fe87e84314f0eb7c265f8e853d07fb181

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2613d2cfcd9754448fecc961a5ee338fdf2c0a8d1035ab0438c2f6df380b741",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-04-13T21:55:02Z",
    "title_canon_sha256": "04b4c6729cc750c4a6d1ccc46d0c02a5eabcb79c0c18a6f41657f4419a5d0d26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.2277",
    "kind": "arxiv",
    "version": 1
  }
}