Pith Number

pith:E7DHUCPA

pith:2011:E7DHUCPAJ46FPRUUSOMPXUKHDE

not attested not anchored not stored refs pending

Astrometry history: Roemer and Gaia

Erik H{\o}g

arxiv:1105.0879 v1 · 2011-05-04 · astro-ph.IM · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E7DHUCPAJ46FPRUUSOMPXUKHDE}

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	2026-05-18T04:23:01.618478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27c67a09e04f3c57c6949398fbd147190b81aa29e2386bdafab2959cdca7ecb4

Aliases

arxiv: 1105.0879 · arxiv_version: 1105.0879v1 · doi: 10.48550/arxiv.1105.0879 · pith_short_12: E7DHUCPAJ46F · pith_short_16: E7DHUCPAJ46FPRUU · pith_short_8: E7DHUCPA

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/E7DHUCPAJ46FPRUUSOMPXUKHDE \
  | 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: 27c67a09e04f3c57c6949398fbd147190b81aa29e2386bdafab2959cdca7ecb4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e083b6d53c4cf9d2d753ed4521318a328e39b13630536e94e7b50fb3331b75c",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-05-04T17:43:23Z",
    "title_canon_sha256": "d82d371cd4a33f1c6d759f233390819d6a517aad99047288418cec4b126965c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.0879",
    "kind": "arxiv",
    "version": 1
  }
}