Pith Number

pith:DDG3UYKF

pith:2011:DDG3UYKFCGUOMZCOMZZ5OQ2SSJ

not attested not anchored not stored refs pending

Exploration of SFPR techniques for astrometry and observations of weak sources with high frequency Space VLBI

J. Malarecki, M. Rioja, R. Dodson, Y. Asaki

arxiv:1110.0267 v1 · 2011-10-03 · astro-ph.IM · 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{DDG3UYKFCGUOMZCOMZZ5OQ2SSJ}

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	2026-05-18T04:04:53.181874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18cdba614511a8e6644e6673d743529241c44af33f849a0580a7b93cfa392225

Aliases

arxiv: 1110.0267 · arxiv_version: 1110.0267v1 · doi: 10.48550/arxiv.1110.0267 · pith_short_12: DDG3UYKFCGUO · pith_short_16: DDG3UYKFCGUOMZCO · pith_short_8: DDG3UYKF

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/DDG3UYKFCGUOMZCOMZZ5OQ2SSJ \
  | 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: 18cdba614511a8e6644e6673d743529241c44af33f849a0580a7b93cfa392225

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74b21e0eba95d341de75971c6132aab22fedfa01dde76e346b690a2c930fb2a8",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-10-03T05:13:59Z",
    "title_canon_sha256": "6cdd48cdcae25f99545f4cdd307595bdbd496cbae9d66117d22e7eef0bec9893"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.0267",
    "kind": "arxiv",
    "version": 1
  }
}