Pith Number

pith:7FU3PYWH

pith:2011:7FU3PYWHKDDSBAAESCUSGJGK7O

not attested not anchored not stored refs pending

Correcting the Astrometry of DASCH scanned plates

E. J. Los, J. E. Grindlay, M. Servillat, S. Laycock, S. Tang

arxiv:1102.4874 v1 · 2011-02-23 · 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{7FU3PYWHKDDSBAAESCUSGJGK7O}

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	2026-05-18T04:27:58.537901Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f969b7e2c750c720800490a92324cafbbb75e76f2ace0a6780172e9299c34830

Aliases

arxiv: 1102.4874 · arxiv_version: 1102.4874v1 · doi: 10.48550/arxiv.1102.4874 · pith_short_12: 7FU3PYWHKDDS · pith_short_16: 7FU3PYWHKDDSBAAE · pith_short_8: 7FU3PYWH

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/7FU3PYWHKDDSBAAESCUSGJGK7O \
  | 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: f969b7e2c750c720800490a92324cafbbb75e76f2ace0a6780172e9299c34830

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "875fd92fabef94eac5ae50637429f03cb4f6e82ebd6f579d7b0ed01d55ccbbbd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-02-23T23:15:25Z",
    "title_canon_sha256": "43d26dc4c35b0733ff859d9672e63cb1c4f5af8c81dcd02abbdd89037e71053b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.4874",
    "kind": "arxiv",
    "version": 1
  }
}