Pith Number

pith:CZFDHSAT

pith:2012:CZFDHSATH6W745IXMD3ARVWVSY

not attested not anchored not stored refs pending

Slow Evolution of the Specific Star Formation Rate at z>2: The Impact of Dust, Emission Lines, and A Rising Star Formation History

Dan Magee, Garth llingworth, Ivo Labbe, Marijn Franx, Pascal Oesch, Rychard Bouwens, Valentino Gonzalez

arxiv:1208.4362 v2 · 2012-08-21 · astro-ph.CO

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	2026-05-18T01:55:00.107962Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

164a33c8133fadfe751760f608d6d59629b35df3377795be04bc3ff0b0a3e85f

Aliases

arxiv: 1208.4362 · arxiv_version: 1208.4362v2 · doi: 10.48550/arxiv.1208.4362 · pith_short_12: CZFDHSATH6W7 · pith_short_16: CZFDHSATH6W745IX · pith_short_8: CZFDHSAT

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/CZFDHSATH6W745IXMD3ARVWVSY \
  | 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: 164a33c8133fadfe751760f608d6d59629b35df3377795be04bc3ff0b0a3e85f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f5f36c37d3e92ed4caec9e217dccf652dc03ab14891dee2240b403acdeb79df",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-08-21T20:00:02Z",
    "title_canon_sha256": "02dacc8754cf067c5f51766549f59d3ab28a441e92840d6466440d3dc074b984"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.4362",
    "kind": "arxiv",
    "version": 2
  }
}