Pith Number

pith:BWVQYCMN

pith:2019:BWVQYCMNORXCP2YYY5ZBS6F55E

not attested not anchored not stored refs pending

Entropies for Coupled Harmonic Oscillators and Temperature

Abdeldjalil Merdaci, Ahmed Jellal

arxiv:1902.07645 v1 · 2019-02-19 · quant-ph · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BWVQYCMNORXCP2YYY5ZBS6F55E}

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	2026-05-17T23:53:07.240203Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0dab0c098d746e27eb18c7721978bde936047b409d3725367513d6c99a78cc15

Aliases

arxiv: 1902.07645 · arxiv_version: 1902.07645v1 · doi: 10.48550/arxiv.1902.07645 · pith_short_12: BWVQYCMNORXC · pith_short_16: BWVQYCMNORXCP2YY · pith_short_8: BWVQYCMN

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/BWVQYCMNORXCP2YYY5ZBS6F55E \
  | 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: 0dab0c098d746e27eb18c7721978bde936047b409d3725367513d6c99a78cc15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "202566a6cc02379d403588928570c47c1ac0752773f662e7269d569678a1e49c",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-02-19T14:44:01Z",
    "title_canon_sha256": "998c52be69065aa7743588422e575b195b430f139fad820ad4f258512d46a29a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.07645",
    "kind": "arxiv",
    "version": 1
  }
}