Pith Number

pith:H7DIKA5G

pith:2017:H7DIKA5GUCJKXVWROETGWKK4XM

not attested not anchored not stored refs pending

A fast, wide-field and distortion-free telescope with curved detectors for surveys at ultra-low surface brightness

David Valls-Gabaud, Eduard Muslimov, Emmanuel Hugot, G\'erard Lema\^itre, Marc Ferrari, Pascal Vola, Simona Lombardo, Wilfred Jahn, Xin Wang

arxiv:1710.08776 v2 · 2017-10-24 · 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{H7DIKA5GUCJKXVWROETGWKK4XM}

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	2026-05-18T00:15:20.418335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fc68503a6a092abd6d171266b295cbb3bd85a5f67e80325024cf07935b21a6b

Aliases

arxiv: 1710.08776 · arxiv_version: 1710.08776v2 · doi: 10.48550/arxiv.1710.08776 · pith_short_12: H7DIKA5GUCJK · pith_short_16: H7DIKA5GUCJKXVWR · pith_short_8: H7DIKA5G

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/H7DIKA5GUCJKXVWROETGWKK4XM \
  | 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: 3fc68503a6a092abd6d171266b295cbb3bd85a5f67e80325024cf07935b21a6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f845b77beb35a22334f6ee40b680d3d23300f080f81e63ca7fde5e3df55e088",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2017-10-24T13:54:17Z",
    "title_canon_sha256": "eb909c39ec6552a59168dd8317bc0804e2eae388f28cd95faa7e29eb9014b2d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.08776",
    "kind": "arxiv",
    "version": 2
  }
}