Pith Number

pith:3GJ6ZFU4

pith:2019:3GJ6ZFU4Y3IDDFV35FXKZ5E7FO

not attested not anchored not stored refs pending

Identifying Variability in Deeply Embedded Protostars with ALMA and CARMA

Doug Johnstone, Logan Francis, Michael M. Dunham, Steve Mairs, Todd R. Hunter

arxiv:1902.00588 v1 · 2019-02-01 · astro-ph.SR · 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{3GJ6ZFU4Y3IDDFV35FXKZ5E7FO}

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	2026-05-17T23:54:52.750167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d993ec969cc6d03196bbe96eacf49f2bb9dc6a4f510b24c83d48cb3f7ee96c98

Aliases

arxiv: 1902.00588 · arxiv_version: 1902.00588v1 · doi: 10.48550/arxiv.1902.00588 · pith_short_12: 3GJ6ZFU4Y3ID · pith_short_16: 3GJ6ZFU4Y3IDDFV3 · pith_short_8: 3GJ6ZFU4

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/3GJ6ZFU4Y3IDDFV35FXKZ5E7FO \
  | 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: d993ec969cc6d03196bbe96eacf49f2bb9dc6a4f510b24c83d48cb3f7ee96c98

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6abe6964aabf5b7d88c6a23d37dcf1bf4d9f1a489dd1faad04218876d293c80d",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-02-01T23:29:05Z",
    "title_canon_sha256": "7d7caffef02a3153340b4419cccdc0a8744cc0aebc3a3a0d9092ae30deebb43b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.00588",
    "kind": "arxiv",
    "version": 1
  }
}