Pith Number

pith:R7WXGQJT

pith:2011:R7WXGQJT2L5JG5QMJFEQLBDEDX

not attested not anchored not stored refs pending

First observations of CN(2-1), HCO$^{+}$(3-2) and C$_{2}$H(3-2) emission lines in the Perseus cluster: constraints on heating mechanisms in the cluster gas

D.A. Williams, E. Bayet, S. Viti, T.W. Hartquist

arxiv:1107.2269 v1 · 2011-07-12 · 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{R7WXGQJT2L5JG5QMJFEQLBDEDX}

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	2026-05-18T02:01:19.718945Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fed734133d2fa93760c49490584641dc143a0b7d759104008775c96fd7642ef

Aliases

arxiv: 1107.2269 · arxiv_version: 1107.2269v1 · doi: 10.48550/arxiv.1107.2269 · pith_short_12: R7WXGQJT2L5J · pith_short_16: R7WXGQJT2L5JG5QM · pith_short_8: R7WXGQJT

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/R7WXGQJT2L5JG5QMJFEQLBDEDX \
  | 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: 8fed734133d2fa93760c49490584641dc143a0b7d759104008775c96fd7642ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "831a287016550c10df488ae8dbb1ed371ec29927fcbb91a65f7367bf4712a722",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-07-12T12:49:03Z",
    "title_canon_sha256": "3925d81c5a64747c0a2748d2c57549904a30a0a1d65868955c8d7ccd6806a6e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.2269",
    "kind": "arxiv",
    "version": 1
  }
}