Pith Number

pith:4UVEOSFX

pith:2019:4UVEOSFXGQ2K7M7BGXPR5MAQZG

not attested not anchored not stored refs pending

The first multi-dimensional view of mass loss from externally FUV irradiated protoplanetary discs

Cathie J. Clarke, Thomas J. Haworth

arxiv:1903.03644 v2 · 2019-03-08 · astro-ph.EP · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4UVEOSFXGQ2K7M7BGXPR5MAQZG}

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	2026-05-17T23:50:55.139354Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e52a4748b73434afb3e135df1eb010c9b20e5901ff6ca2435d3f6ff0902ed3cc

Aliases

arxiv: 1903.03644 · arxiv_version: 1903.03644v2 · doi: 10.48550/arxiv.1903.03644 · pith_short_12: 4UVEOSFXGQ2K · pith_short_16: 4UVEOSFXGQ2K7M7B · pith_short_8: 4UVEOSFX

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/4UVEOSFXGQ2K7M7BGXPR5MAQZG \
  | 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: e52a4748b73434afb3e135df1eb010c9b20e5901ff6ca2435d3f6ff0902ed3cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7baa474cba14cd38795c42c2ccc9c93af60ec3bfe0f4fade2561b5b5e9712b48",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-03-08T19:44:45Z",
    "title_canon_sha256": "4dc854d80e353bcbfefeb491e0ef2103619c53c8a7bd61d12245db366b62aa68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.03644",
    "kind": "arxiv",
    "version": 2
  }
}