Pith Number

pith:SQVLSZX4

pith:2015:SQVLSZX4KOX7XXWVUFJRGIAVLK

not attested not anchored not stored refs pending

Cooling Requirements for the Vertical Shear Instability in Protoplanetary Disks

Andrew N. Youdin, Min-Kai Lin

arxiv:1505.02163 v2 · 2015-05-08 · 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{SQVLSZX4KOX7XXWVUFJRGIAVLK}

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	2026-05-18T01:32:29.542600Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

942ab966fc53affbded5a1531320155a90d8de5d82d60e2460a60a5957ab6c1f

Aliases

arxiv: 1505.02163 · arxiv_version: 1505.02163v2 · doi: 10.48550/arxiv.1505.02163 · pith_short_12: SQVLSZX4KOX7 · pith_short_16: SQVLSZX4KOX7XXWV · pith_short_8: SQVLSZX4

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/SQVLSZX4KOX7XXWVUFJRGIAVLK \
  | 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: 942ab966fc53affbded5a1531320155a90d8de5d82d60e2460a60a5957ab6c1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28c1e7eed95b0ca3933193acc24c9522171de8fc592d7f54e69daa64e0249548",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2015-05-08T20:00:56Z",
    "title_canon_sha256": "a8a82bb89275e03906908e7876da4565f3bd8fda7fd21ce0b7c4f74c79372af3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.02163",
    "kind": "arxiv",
    "version": 2
  }
}