Pith Number

pith:SQZAI2PL

pith:2011:SQZAI2PLR7OTLTWSFZWQAIJQNW

not attested not anchored not stored refs pending

The Pair Fraction of Massive Galaxies at 0 < z < 3

Allison W. S. Man, Andrew W. Zirm, Arjen van der Wel, Stijn Wuyts, Sune Toft

arxiv:1109.2895 v1 · 2011-09-13 · astro-ph.CO · astro-ph.GA

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

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	2026-05-18T04:06:07.640685Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94320469eb8fdd35ced22e6d0021306d8ae14d1cc968b3db37ab47127911c696

Aliases

arxiv: 1109.2895 · arxiv_version: 1109.2895v1 · doi: 10.48550/arxiv.1109.2895 · pith_short_12: SQZAI2PLR7OT · pith_short_16: SQZAI2PLR7OTLTWS · pith_short_8: SQZAI2PL

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/SQZAI2PLR7OTLTWSFZWQAIJQNW \
  | 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: 94320469eb8fdd35ced22e6d0021306d8ae14d1cc968b3db37ab47127911c696

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1925d4debf0a9d057071c4ea4cbb4318884daa1a5a07274cca5da9c913862cd2",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-13T19:59:56Z",
    "title_canon_sha256": "dbce76b5b05cc078a174a7382a35dbbac4d0f89af0d649e9685b63ffbdd450e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.2895",
    "kind": "arxiv",
    "version": 1
  }
}