Pith Number

pith:FHO7ITP2

pith:2018:FHO7ITP22TLIAXJQVBBMMLUXH4

not attested not anchored not stored refs pending

Digitization and astrometric calibration of Carte du Ciel photographic plates with Gaia~DR1

C.F. Manara, J. de Bruijne, J.-U. Ness, K. Lehtinen, K. Muinonen, M. Poutanen, T. Markkanen, T. Prusti, U. Lammers

arxiv:1805.08596 v1 · 2018-05-22 · 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{FHO7ITP22TLIAXJQVBBMMLUXH4}

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	2026-05-18T00:15:25.830121Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29ddf44dfad4d6805d30a842c62e973f21c32e5aca2a3f724a44b41a717a0d0d

Aliases

arxiv: 1805.08596 · arxiv_version: 1805.08596v1 · doi: 10.48550/arxiv.1805.08596 · pith_short_12: FHO7ITP22TLI · pith_short_16: FHO7ITP22TLIAXJQ · pith_short_8: FHO7ITP2

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/FHO7ITP22TLIAXJQVBBMMLUXH4 \
  | 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: 29ddf44dfad4d6805d30a842c62e973f21c32e5aca2a3f724a44b41a717a0d0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9219fd6f1a416fb84beb0cdc807e1539b5a2b17e9bfb9fd6a3142a24bb73785",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-05-22T14:17:28Z",
    "title_canon_sha256": "9ea347c0fe3988d77aad46ffa3ba76f54e50d2995554086527693085cb7f952f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.08596",
    "kind": "arxiv",
    "version": 1
  }
}