Pith Number

pith:5YIIZ6Z7

pith:2009:5YIIZ6Z7NBMHRBOPRFMBXZJ3H2

not attested not anchored not stored refs pending

Introducing Astronomy into Mozambican Society

(2) UWC, 3), (3) UEM, (4) EPM, (5) Amateur Astronomer, (6) INM, (7) MCT), A. J. R. Uaissine (7) ((1) LJMU, A. M. A. R. Besteiro (4), A. M. Maphossa (3), C. M. Paulo (2, F. A. Nhanonbe (6), H. Geraldes (5), V. A. R. M. Ribeiro (1)

arxiv:0906.1970 v1 · 2009-06-10 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5YIIZ6Z7NBMHRBOPRFMBXZJ3H2}

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	2026-05-18T04:16:51.924104Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee108cfb3f68587885cf89581be53b3ea32930ae77204d16a2a340a691a9ed42

Aliases

arxiv: 0906.1970 · arxiv_version: 0906.1970v1 · doi: 10.48550/arxiv.0906.1970 · pith_short_12: 5YIIZ6Z7NBMH · pith_short_16: 5YIIZ6Z7NBMHRBOP · pith_short_8: 5YIIZ6Z7

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/5YIIZ6Z7NBMHRBOPRFMBXZJ3H2 \
  | 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: ee108cfb3f68587885cf89581be53b3ea32930ae77204d16a2a340a691a9ed42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91143ee859280f01e70dbdeedf2a9959591b4896821897aad023983d2fee8904",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-06-10T16:22:47Z",
    "title_canon_sha256": "42246d84428eb3f02d5097ec28522184590c544aaef039f511ce5c1c69f90333"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.1970",
    "kind": "arxiv",
    "version": 1
  }
}