Pith Number

pith:5OIVWVFS

pith:2008:5OIVWVFSSH2KQE4PXCS6PE6IDB

not attested not anchored not stored refs pending

High-frequency VLBI observations of SgrA* during a multi-frequency campaign in May 2007

A. Eckart, A. Witzel, D. Kunneriath, G. Witzel, J. A. Zensus, R.-S. Lu, S. K\"onig, T. P. Krichbaum

arxiv:0809.2463 v1 · 2008-09-15 · 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{5OIVWVFSSH2KQE4PXCS6PE6IDB}

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	2026-05-18T02:35:14.832765Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb915b54b291f4a8138fb8a5e793c81868627e5b15c54f1cc6d65c01e2409d21

Aliases

arxiv: 0809.2463 · arxiv_version: 0809.2463v1 · doi: 10.48550/arxiv.0809.2463 · pith_short_12: 5OIVWVFSSH2K · pith_short_16: 5OIVWVFSSH2KQE4P · pith_short_8: 5OIVWVFS

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/5OIVWVFSSH2KQE4PXCS6PE6IDB \
  | 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: eb915b54b291f4a8138fb8a5e793c81868627e5b15c54f1cc6d65c01e2409d21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c32011349c48c339aacb7a86f1cfc2fcf51179eb20ee8932d17031e91fc8cb5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-15T08:55:05Z",
    "title_canon_sha256": "5f9fd7e17fc1811bfa71260581b0dcd891b20ee6f4c0bdc71281b09b52224119"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.2463",
    "kind": "arxiv",
    "version": 1
  }
}