Pith Number

pith:2A34N6KB

pith:2007:2A34N6KBOP6Z3KXVC5OPWGFKYK

not attested not anchored not stored refs pending

37 GHz observations of a large sample of BL Lacertae objects

A. L\"ahteenm\"aki, E. Nieppola, E. Valtaoja, I. Torniainen, M. Kotiranta, M. Parviainen, M. Ranta, M. Tornikoski, M. Tr\"oller, P.-M. Saloranta, S. Nummila, T. Hakala, T. Hovatta, T. Ojala

arxiv:0705.0887 v1 · 2007-05-07 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2A34N6KBOP6Z3KXVC5OPWGFKYK}

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	2026-05-18T04:37:11.693091Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d037c6f94173fd9daaf5175cfb18aac29ff118fd011dda8cd36510150b57936a

Aliases

arxiv: 0705.0887 · arxiv_version: 0705.0887v1 · doi: 10.48550/arxiv.0705.0887 · pith_short_12: 2A34N6KBOP6Z · pith_short_16: 2A34N6KBOP6Z3KXV · pith_short_8: 2A34N6KB

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/2A34N6KBOP6Z3KXVC5OPWGFKYK \
  | 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: d037c6f94173fd9daaf5175cfb18aac29ff118fd011dda8cd36510150b57936a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8262900ee77ed6765972baff53a5dfe8f8b3a4d0092df04099303661382c764",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-05-07T11:48:53Z",
    "title_canon_sha256": "c6ff3d47e86d69ced940168007e39d761bfda2cb6b9bdf64064370ed40bf5ace"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0705.0887",
    "kind": "arxiv",
    "version": 1
  }
}