Pith Number

pith:MJD2Z36G

pith:2011:MJD2Z36GRKRHGMR3AEA5Q2OV5F

not attested not anchored not stored refs pending

Broad Ly alpha Emission from Three Nearby BL Lacertae Objects

Charles W. Danforth (U. Colorado), Eric S. Perlman (Florida Inst. Tech.), John T. Stocke (U. Colorado)

arxiv:1102.5044 v1 · 2011-02-24 · 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{MJD2Z36GRKRHGMR3AEA5Q2OV5F}

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	2026-05-18T02:03:05.344456Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6247acefc68aa273323b0101d869d5e9468502608d94eaa5eb548bf2d66d1839

Aliases

arxiv: 1102.5044 · arxiv_version: 1102.5044v1 · doi: 10.48550/arxiv.1102.5044 · pith_short_12: MJD2Z36GRKRH · pith_short_16: MJD2Z36GRKRHGMR3 · pith_short_8: MJD2Z36G

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/MJD2Z36GRKRHGMR3AEA5Q2OV5F \
  | 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: 6247acefc68aa273323b0101d869d5e9468502608d94eaa5eb548bf2d66d1839

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f215c624abb23045f914ca8bc4e76c668ae1894f5ddd3028b1dec400094076d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-02-24T17:29:31Z",
    "title_canon_sha256": "a8368d06774716cc20b6c0542f61a1a6610b69b892fafefbfd6fc18edcefd562"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.5044",
    "kind": "arxiv",
    "version": 1
  }
}