Pith Number

pith:AMKUJNFT

pith:2017:AMKUJNFTIVCWU2NIYIGOZYGOXW

not attested not anchored not stored refs pending

Second law of thermodynamics with quantum memory

Heng Fan, Li-Hang Ren

arxiv:1701.07628 v2 · 2017-01-26 · quant-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{AMKUJNFTIVCWU2NIYIGOZYGOXW}

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	2026-05-18T00:31:03.045311Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

031544b4b345456a69a8c20cece0cebdb238d66efc9b7e1f2aa04bf242fca9e3

Aliases

arxiv: 1701.07628 · arxiv_version: 1701.07628v2 · doi: 10.48550/arxiv.1701.07628 · pith_short_12: AMKUJNFTIVCW · pith_short_16: AMKUJNFTIVCWU2NI · pith_short_8: AMKUJNFT

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/AMKUJNFTIVCWU2NIYIGOZYGOXW \
  | 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: 031544b4b345456a69a8c20cece0cebdb238d66efc9b7e1f2aa04bf242fca9e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "760ba54da92a602b6227cecdb4da4a97b5e92ed190d8382d26bc389e12aa8206",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-01-26T09:38:16Z",
    "title_canon_sha256": "1e27c2afd220a5947c892a40e494ef7b7c19270235bcdfc0304bdc63ae4dca53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.07628",
    "kind": "arxiv",
    "version": 2
  }
}