Pith Number

pith:FZDF5G6P

pith:2026:FZDF5G6PRFTDUL5UT2VSVUDD6P

not attested not anchored not stored refs pending

Alchemical thermodynamic integration for ab initio free-energy calculations in solutions

Feng Zhang, Kai-Ming Ho, Liangrui Wei, Renata M. Wentzcovitch, Yang Sun

arxiv:2607.18750 v1 · 2026-07-21 · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FZDF5G6PRFTDUL5UT2VSVUDD6P}

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	2026-07-22T01:23:10.009458Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e465e9bcf89663a2fb49eab2ad063f3f969ddcf97f173da7a03d61accae7448

Aliases

arxiv: 2607.18750 · arxiv_version: 2607.18750v1 · doi: 10.48550/arxiv.2607.18750 · pith_short_12: FZDF5G6PRFTD · pith_short_16: FZDF5G6PRFTDUL5U · pith_short_8: FZDF5G6P

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/FZDF5G6PRFTDUL5UT2VSVUDD6P \
  | 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: 2e465e9bcf89663a2fb49eab2ad063f3f969ddcf97f173da7a03d61accae7448

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a20f38761094615f3b4aaa41cc463b390bc0c56557d84d0c8501f03a380a998",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2026-07-21T06:18:25Z",
    "title_canon_sha256": "03b20f472cff4e5668892511e20c645b7e76c5908e45e51145b2d9cbd3e16c1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.18750",
    "kind": "arxiv",
    "version": 1
  }
}