Pith Number

pith:HT7KYWQW

pith:2017:HT7KYWQWVLHBVEB3ZNKEY65LGP

not attested not anchored not stored refs pending

Vortex stretching in self-gravitating protoplanetary discs

E. Vorobyov, Zs. Regaly

arxiv:1709.08334 v1 · 2017-09-25 · astro-ph.SR · 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{HT7KYWQWVLHBVEB3ZNKEY65LGP}

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	2026-05-18T00:33:47.911343Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3cfeac5a16aace1a903bcb544c7bab33dc17a00b17370f2c95126d270b09f52b

Aliases

arxiv: 1709.08334 · arxiv_version: 1709.08334v1 · doi: 10.48550/arxiv.1709.08334 · pith_short_12: HT7KYWQWVLHB · pith_short_16: HT7KYWQWVLHBVEB3 · pith_short_8: HT7KYWQW

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/HT7KYWQWVLHBVEB3ZNKEY65LGP \
  | 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: 3cfeac5a16aace1a903bcb544c7bab33dc17a00b17370f2c95126d270b09f52b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad19eca0649317d8869eec8e8d21bdadc62c51fb0463cac7bd39ae690a3f560f",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-09-25T06:13:38Z",
    "title_canon_sha256": "982c16a627c0f21836e7d86895d64b99c7db32d81107065b77a2ae46e2c70be0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.08334",
    "kind": "arxiv",
    "version": 1
  }
}