Pith Number

pith:SIQK5QFN

pith:2022:SIQK5QFNONDSBKLDS7BPPTOPHY

not attested not anchored not stored refs pending

Discovery of three new near-pristine absorption clouds at $z=2.6$-4.4

(2) Saint Michael's College, 3), (3) W. M. Keck Observatory, (4) Durham University, 5, (5) University of Milan, 6) ((1) Swinburne University of Technology, (6) Astronomical Observatory of Trieste), John M. O'Meara (2, Michael T. Murphy (1), Michele Fumagalli (4, Neil H. M. Crighton (1), P. Fr\'ed\'eric Robert (1)

arxiv:2206.02947 v1 · 2022-06-06 · 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{SIQK5QFNONDSBKLDS7BPPTOPHY}

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	2026-07-05T04:45:22.477697Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9220aec0ad734720a96397c2f7cdcf3e2863b56e02e408bc5a109c1fa93e2ea5

Aliases

arxiv: 2206.02947 · arxiv_version: 2206.02947v1 · doi: 10.48550/arxiv.2206.02947 · pith_short_12: SIQK5QFNONDS · pith_short_16: SIQK5QFNONDSBKLD · pith_short_8: SIQK5QFN

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/SIQK5QFNONDSBKLDS7BPPTOPHY \
  | 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: 9220aec0ad734720a96397c2f7cdcf3e2863b56e02e408bc5a109c1fa93e2ea5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e5625d5493d6d2d5bc2335e7ea37e69a66f933f115584155feb59b0a17bbd68",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2022-06-06T23:24:33Z",
    "title_canon_sha256": "661b057da3d4b8c6568a3e60fa1b6ca43375d53aae3f532a32efbdc613c408d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2206.02947",
    "kind": "arxiv",
    "version": 1
  }
}