Pith Number

pith:H4EO5BKN

pith:2017:H4EO5BKN2RCS7P2VCZFQZAEJ6L

not attested not anchored not stored refs pending

HP2 survey: III The California Molecular Cloud--A Sleeping Giant Revisited

Charles J. Lada, Jo\~ao Alves, John A. Lewis, Marco Lombardi

arxiv:1708.07847 v3 · 2017-08-25 · 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{H4EO5BKN2RCS7P2VCZFQZAEJ6L}

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	2026-05-18T00:32:05.527608Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f08ee854dd4452fbf55164b0c8089f2eaae7cf8433996018e3e0304b8fce8a5

Aliases

arxiv: 1708.07847 · arxiv_version: 1708.07847v3 · doi: 10.48550/arxiv.1708.07847 · pith_short_12: H4EO5BKN2RCS · pith_short_16: H4EO5BKN2RCS7P2V · pith_short_8: H4EO5BKN

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/H4EO5BKN2RCS7P2VCZFQZAEJ6L \
  | 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: 3f08ee854dd4452fbf55164b0c8089f2eaae7cf8433996018e3e0304b8fce8a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac0d6364bd6577ce9059ecf387c43328ff9acbffb636ef0a8f481db83df745db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-08-25T18:03:45Z",
    "title_canon_sha256": "788dc466eb3d45827a4ce77b2ad2fdb643b3b5a02c4cb975d50402b41816137f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.07847",
    "kind": "arxiv",
    "version": 3
  }
}