Pith Number

pith:Q63CF6BK

pith:2025:Q63CF6BKTRHFVBM2AN6ILYDZPL

not attested not anchored not stored refs pending

Asymptotic behavior of the Speed of Sound in Dense Matter

Pok Man Lo, Udita Shukla

arxiv:2507.06741 v1 · 2025-07-09 · nucl-th · astro-ph.HE · hep-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{Q63CF6BKTRHFVBM2AN6ILYDZPL}

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	2026-07-05T11:34:22.380557Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87b622f82a9c4e5a859a037c85e0797ad1986f48f1eecb7b92c8a0e3565760ae

Aliases

arxiv: 2507.06741 · arxiv_version: 2507.06741v1 · doi: 10.48550/arxiv.2507.06741 · pith_short_12: Q63CF6BKTRHF · pith_short_16: Q63CF6BKTRHFVBM2 · pith_short_8: Q63CF6BK

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/Q63CF6BKTRHFVBM2AN6ILYDZPL \
  | 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: 87b622f82a9c4e5a859a037c85e0797ad1986f48f1eecb7b92c8a0e3565760ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4634d389f031a22172e9b67451fa42232d3121c4147d6037524becc7acd47d20",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "hep-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "nucl-th",
    "submitted_at": "2025-07-09T10:56:06Z",
    "title_canon_sha256": "e787aaccd2dd6ee5406b356672f7eabec2ad423d62cf86e789ef128a681a24ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.06741",
    "kind": "arxiv",
    "version": 1
  }
}