Pith Number

pith:Y5KXFDK6

pith:2020:Y5KXFDK6M5I3C2Z2AHVZ3XSH7O

not attested not anchored not stored refs pending

Magnetohydrodynamics of protoplanetary discs

G. Lesur

arxiv:2007.15967 v1 · 2020-07-31 · astro-ph.SR · astro-ph.EP · astro-ph.HE · physics.flu-dyn · physics.plasm-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y5KXFDK6M5I3C2Z2AHVZ3XSH7O}

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	2026-07-05T01:23:40.342478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c755728d5e6751b16b3a01eb9dde47fbb87ebd6028619958c500cf71701a41fe

Aliases

arxiv: 2007.15967 · arxiv_version: 2007.15967v1 · doi: 10.48550/arxiv.2007.15967 · pith_short_12: Y5KXFDK6M5I3 · pith_short_16: Y5KXFDK6M5I3C2Z2 · pith_short_8: Y5KXFDK6

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/Y5KXFDK6M5I3C2Z2AHVZ3XSH7O \
  | 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: c755728d5e6751b16b3a01eb9dde47fbb87ebd6028619958c500cf71701a41fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26a2e94b3463a0528982b79b3391f3891dd234c6f89e5a0490e0f6ef6ab729a1",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.HE",
      "physics.flu-dyn",
      "physics.plasm-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-07-31T11:13:25Z",
    "title_canon_sha256": "ac66b310051caa76f9e40de651e5f4f42614920159ad4924424e4a95309b92b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.15967",
    "kind": "arxiv",
    "version": 1
  }
}