Pith Number

pith:K7H2OXTN

pith:2009:K7H2OXTNY76IX7FZZ5NFE237MG

not attested not anchored not stored refs pending

Dark matter and Modified Newtonian Dynamics in a sample of high-redshift galaxy clusters observed with Chandra

Carl Blaksley, Massimiliano Bonamente

arxiv:0907.2279 v1 · 2009-07-14 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K7H2OXTNY76IX7FZZ5NFE237MG}

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	2026-05-18T03:02:44.611891Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57cfa75e6dc7fc8bfcb9cf5a526b7f61a6823bcce4885ba0b115c17794638e37

Aliases

arxiv: 0907.2279 · arxiv_version: 0907.2279v1 · doi: 10.48550/arxiv.0907.2279 · pith_short_12: K7H2OXTNY76I · pith_short_16: K7H2OXTNY76IX7FZ · pith_short_8: K7H2OXTN

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/K7H2OXTNY76IX7FZZ5NFE237MG \
  | 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: 57cfa75e6dc7fc8bfcb9cf5a526b7f61a6823bcce4885ba0b115c17794638e37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86cd0a9b575b5517ba201e4bf166813ac7a163f45f274f0ab90d66a3e21c2688",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-07-14T03:07:41Z",
    "title_canon_sha256": "ac4bf01b16e7af87d9de8a90b99cf80805147a6864290db7727027255244ef44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.2279",
    "kind": "arxiv",
    "version": 1
  }
}