Pith Number

pith:C4GZYS5H

pith:2019:C4GZYS5HLFWTKBY7RVYUOBJLFK

not attested not anchored not stored refs pending

Theoretical models of the protostellar disks of AS 209 and HL Tau presently forming in-situ planets

Demosthenes Kazanas, Dimitris M. Christodoulou

arxiv:1901.10642 v2 · 2019-01-30 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C4GZYS5HLFWTKBY7RVYUOBJLFK}

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	2026-05-17T23:52:14.808441Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

170d9c4ba7596d35071f8d7147052b2aa6417a0d2896f8f48ba6d7c0e26f0e61

Aliases

arxiv: 1901.10642 · arxiv_version: 1901.10642v2 · doi: 10.48550/arxiv.1901.10642 · pith_short_12: C4GZYS5HLFWT · pith_short_16: C4GZYS5HLFWTKBY7 · pith_short_8: C4GZYS5H

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/C4GZYS5HLFWTKBY7RVYUOBJLFK \
  | 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: 170d9c4ba7596d35071f8d7147052b2aa6417a0d2896f8f48ba6d7c0e26f0e61

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "45fa5f5272269647bbc144a225ec643f56f59ee4cbb099cb2c2a2e722ebf7265",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-01-30T02:12:04Z",
    "title_canon_sha256": "5f9e2f0657255aabf9f4b3ba06b0a2cca7ed034dcc9f0439d76b808d21e51636"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.10642",
    "kind": "arxiv",
    "version": 2
  }
}