Pith Number

pith:E6IDAWUG

pith:2011:E6IDAWUGIZZ64D46BOSB5SSVJ2

not attested not anchored not stored refs pending

Environmental quenching and hierarchical cluster assembly: Evidence from spectroscopic ages of red-sequence galaxies in Coma

James Price (Bristol), John R. Lucey (Durham), Michael J. Hudson (Waterloo), Russell J. Smith (Durham), Steven Phillipps (Bristol)

arxiv:1108.3836 v2 · 2011-08-18 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E6IDAWUGIZZ64D46BOSB5SSVJ2}

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	2026-05-18T04:07:19.428140Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2790305a864673ee0f9e0ba41eca554ea510f2ead3a955e8e60ce08405b35832

Aliases

arxiv: 1108.3836 · arxiv_version: 1108.3836v2 · doi: 10.48550/arxiv.1108.3836 · pith_short_12: E6IDAWUGIZZ6 · pith_short_16: E6IDAWUGIZZ64D46 · pith_short_8: E6IDAWUG

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/E6IDAWUGIZZ64D46BOSB5SSVJ2 \
  | 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: 2790305a864673ee0f9e0ba41eca554ea510f2ead3a955e8e60ce08405b35832

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea3de32686a68bc9ca1f7a13b1d937bfbde3e6a60162ffeecf0ed43d3904e089",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-08-18T20:00:06Z",
    "title_canon_sha256": "c64ea399a1e1aedcb01ab306deef25387a45ff9e45665a8fb72c0a734eafe7d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.3836",
    "kind": "arxiv",
    "version": 2
  }
}