Pith Number

pith:ZFEWKDRK

pith:2021:ZFEWKDRKBIBNMIJKAX4DGPKET6

not attested not anchored not stored refs pending

Revisiting the Strong Shock Problem: Converging and Diverging Shocks in Different Geometries

Elisha Modelevsky, Re'em Sari

arxiv:2102.07235 v2 · 2021-02-14 · astro-ph.HE · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZFEWKDRKBIBNMIJKAX4DGPKET6}

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	2026-07-05T02:38:17.728204Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c949650e2a0a02d6212a05f8333d449f98795bdb207e18352f0d3af7e3ec3c15

Aliases

arxiv: 2102.07235 · arxiv_version: 2102.07235v2 · doi: 10.48550/arxiv.2102.07235 · pith_short_12: ZFEWKDRKBIBN · pith_short_16: ZFEWKDRKBIBNMIJK · pith_short_8: ZFEWKDRK

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/ZFEWKDRKBIBNMIJKAX4DGPKET6 \
  | 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: c949650e2a0a02d6212a05f8333d449f98795bdb207e18352f0d3af7e3ec3c15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7fde1daa151af102d5075676e08b242162b4ce73ed568134350e1b9574245c5",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-02-14T20:26:19Z",
    "title_canon_sha256": "3747d9f1e9065877a47156e94e165b772d8cc00063b78eb90ba4452f497d445e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.07235",
    "kind": "arxiv",
    "version": 2
  }
}