Pith Number

pith:WN7UZUPA

pith:2018:WN7UZUPAIMVVK5F5JSZAUDKATV

not attested not anchored not stored refs pending

ALMA detections of the youngest protostars in Ophiuchus

Andy Pon, Jaime E. Pineda, J. Di Francesco, Jes K. J{\o}rgensen, P. Caselli, Rachel K. Friesen, Tyler L. Bourke

arxiv:1811.03976 v1 · 2018-11-09 · 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{WN7UZUPAIMVVK5F5JSZAUDKATV}

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	2026-05-17T23:57:37.537416Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b37f4cd1e0432b5574bd4cb20a0d409d4889dd4cd9e5b102ef9098453c4f0906

Aliases

arxiv: 1811.03976 · arxiv_version: 1811.03976v1 · doi: 10.48550/arxiv.1811.03976 · pith_short_12: WN7UZUPAIMVV · pith_short_16: WN7UZUPAIMVVK5F5 · pith_short_8: WN7UZUPA

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/WN7UZUPAIMVVK5F5JSZAUDKATV \
  | 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: b37f4cd1e0432b5574bd4cb20a0d409d4889dd4cd9e5b102ef9098453c4f0906

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cffcf5daed2ab44ca9f3ab3b409bcf07755c8f9fd4b4057a8df742a695f12c9e",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-11-09T15:41:53Z",
    "title_canon_sha256": "51353192313bd47a88fbb8a81c3e9cfafe4e67f9d9bffc5ff8bd750fb34a8828"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.03976",
    "kind": "arxiv",
    "version": 1
  }
}