Pith Number

pith:4SIE4BYD

pith:2026:4SIE4BYDMCK2XRZMH7RVCWNUMF

not attested not anchored not stored refs pending

High-Density Sound Speed and Post-Merger Dynamics

David Radice, John Stroud, Sanjay Reddy

arxiv:2607.15588 v1 · 2026-07-17 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4SIE4BYDMCK2XRZMH7RVCWNUMF}

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	2026-07-20T00:18:41.813355Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4904e07036095abc72c3fe35159b4614fac5eeeb45c261c1878ad6f27ab7215

Aliases

arxiv: 2607.15588 · arxiv_version: 2607.15588v1 · doi: 10.48550/arxiv.2607.15588 · pith_short_12: 4SIE4BYDMCK2 · pith_short_16: 4SIE4BYDMCK2XRZM · pith_short_8: 4SIE4BYD

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/4SIE4BYDMCK2XRZMH7RVCWNUMF \
  | 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: e4904e07036095abc72c3fe35159b4614fac5eeeb45c261c1878ad6f27ab7215

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a384607e19576bd04bf3599935346f9f5f0580d9f5f3ae58957d52ca5afc3b48",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-07-17T03:21:28Z",
    "title_canon_sha256": "c919778fb4a8f1e5135b3311bc08dd69e0d13689c44e140685f685a2eb3d49d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.15588",
    "kind": "arxiv",
    "version": 1
  }
}