Pith Number

pith:FQL77TZ7

pith:2017:FQL77TZ76KQDUKILPOHYWUBB3A

not attested not anchored not stored refs pending

Cross-identification of stellar catalogs with multiple stars: Complexity and Resolution

Daniel Severin

arxiv:1710.09417 v2 · 2017-10-25 · cs.DM · astro-ph.IM · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FQL77TZ76KQDUKILPOHYWUBB3A}

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	2026-05-18T00:08:36.306427Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c17ffcf3ff2a03a290b7b8f8b5021d8162c8768be868ec6fbd0d0eee2180260

Aliases

arxiv: 1710.09417 · arxiv_version: 1710.09417v2 · doi: 10.48550/arxiv.1710.09417 · pith_short_12: FQL77TZ76KQD · pith_short_16: FQL77TZ76KQDUKIL · pith_short_8: FQL77TZ7

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/FQL77TZ76KQDUKILPOHYWUBB3A \
  | 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: 2c17ffcf3ff2a03a290b7b8f8b5021d8162c8768be868ec6fbd0d0eee2180260

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2eaae2fbf5ab946b4a06385c376767214e99f96d83b26a1b5af404c3770705e1",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2017-10-25T18:42:35Z",
    "title_canon_sha256": "4dfd2d9cea8bff0877d082df3412f16a184421a9a0b32e18d9309990cfd312d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.09417",
    "kind": "arxiv",
    "version": 2
  }
}