Pith Number

pith:CY5C6RKB

pith:2015:CY5C6RKBXPYWYPFQF6CAUYYZ7G

not attested not anchored not stored refs pending

pt5m - a 0.5m robotic telescope on La Palma

(2) Centre for Advanced Instrumentation, 3), (3) Instituto de Astrofisica de Canarias, Astronomy, Department of Physics, L. K. Hardy (1), R. W. Wilson (2) ((1) Department of Physics, Spain), S. P. Littlefair (1), T. Butterley (2), UK, University of Durham, University of Sheffield, V. S. Dhillon (1

arxiv:1509.08839 v1 · 2015-09-29 · 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{CY5C6RKBXPYWYPFQF6CAUYYZ7G}

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	2026-05-18T01:27:56.876297Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

163a2f4541bbf16c3cb02f840a6319f986c2ca9bd079b4a7b5c02086ded0c96a

Aliases

arxiv: 1509.08839 · arxiv_version: 1509.08839v1 · doi: 10.48550/arxiv.1509.08839 · pith_short_12: CY5C6RKBXPYW · pith_short_16: CY5C6RKBXPYWYPFQ · pith_short_8: CY5C6RKB

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/CY5C6RKBXPYWYPFQF6CAUYYZ7G \
  | 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: 163a2f4541bbf16c3cb02f840a6319f986c2ca9bd079b4a7b5c02086ded0c96a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d0cde5850879006e447451328beb30db2dd1e94c14b0fd64bd044418616f4cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-09-29T16:40:53Z",
    "title_canon_sha256": "091d45fd01b5fd88cdf5e835feb4a24ca42d77464b041bbe83ac4a7c38a83c38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.08839",
    "kind": "arxiv",
    "version": 1
  }
}