Pith Number

pith:CQ5JWC4R

pith:2012:CQ5JWC4RIKPO4HEBCLSFKBBVFO

not attested not anchored not stored refs pending

Distances to Dark Clouds: Comparing Extinction Distances to Maser Parallax Distances

James M. Jackson, Jonathan B. Foster, Joseph J. Stead, Melvin G. Hoare, Robert A. Benjamin

arxiv:1204.5484 v1 · 2012-04-24 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CQ5JWC4RIKPO4HEBCLSFKBBVFO}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:57:46.522972Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

143a9b0b91429eee1c8112e45504352bb6f7ef918e371e03df69064fa0f5418b

Aliases

arxiv: 1204.5484 · arxiv_version: 1204.5484v1 · doi: 10.48550/arxiv.1204.5484 · pith_short_12: CQ5JWC4RIKPO · pith_short_16: CQ5JWC4RIKPO4HEB · pith_short_8: CQ5JWC4R

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/CQ5JWC4RIKPO4HEBCLSFKBBVFO \
  | 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: 143a9b0b91429eee1c8112e45504352bb6f7ef918e371e03df69064fa0f5418b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c371e16ed047942570699d8e39d8945dad263fc58262771595d17de0145b4955",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-04-24T20:00:25Z",
    "title_canon_sha256": "819f71c91df0cd7f2695fc541fdbcdca577aba2961686c73427d4fa2e3a3c504"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.5484",
    "kind": "arxiv",
    "version": 1
  }
}