Pith Number

pith:4OUPISF3

pith:2011:4OUPISF3IJZAFDDKQDPRVMDNK2

not attested not anchored not stored refs pending

SDSS, LSST, and Gaia: Lessons and Synergies

Mario Juric, Zeljko Ivezic

arxiv:1102.1116 v1 · 2011-02-06 · astro-ph.GA · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4OUPISF3IJZAFDDKQDPRVMDNK2}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:03:16.284961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3a8f448bb4272028c6a80df1ab06d56a77cb2cfc864f1da5f53bc0d75ae9fb2

Aliases

arxiv: 1102.1116 · arxiv_version: 1102.1116v1 · doi: 10.48550/arxiv.1102.1116 · pith_short_12: 4OUPISF3IJZA · pith_short_16: 4OUPISF3IJZAFDDK · pith_short_8: 4OUPISF3

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/4OUPISF3IJZAFDDKQDPRVMDNK2 \
  | 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: e3a8f448bb4272028c6a80df1ab06d56a77cb2cfc864f1da5f53bc0d75ae9fb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93f4150f6422e82dda33a0c6f220907b4b4e1436abc4c4f403a77a30978e0484",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-02-06T01:16:36Z",
    "title_canon_sha256": "bb51e2b5940feb13571600f88f29aa556c2c2bb7abfdefa7204d9065f7d5e276"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.1116",
    "kind": "arxiv",
    "version": 1
  }
}