Pith Number

pith:QQWUIYPK

pith:2020:QQWUIYPK4C4SWQI35EXHVQWFI3

not attested not anchored not stored refs pending

Measuring the thermodynamic cost of timekeeping

A.N. Pearson, E.A. Laird, G.A.D. Briggs, M. Huber, N. Ares, P. Erker, Y. Guryanova

arxiv:2006.08670 v1 · 2020-06-15 · cond-mat.mes-hall · 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{QQWUIYPK4C4SWQI35EXHVQWFI3}

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	2026-07-05T02:39:34.805306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

842d4461eae0b92b411be92e7ac2c546c42a882efad8b02d0458fe6f1aa75740

Aliases

arxiv: 2006.08670 · arxiv_version: 2006.08670v1 · doi: 10.48550/arxiv.2006.08670 · pith_short_12: QQWUIYPK4C4S · pith_short_16: QQWUIYPK4C4SWQI3 · pith_short_8: QQWUIYPK

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/QQWUIYPK4C4SWQI35EXHVQWFI3 \
  | 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: 842d4461eae0b92b411be92e7ac2c546c42a882efad8b02d0458fe6f1aa75740

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "036065f0ffc313dba6aa8a60d2f0aa61b394cd31dffff4fa3dfa03b3f0090160",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2020-06-15T18:17:44Z",
    "title_canon_sha256": "f36661f73a19223626ec250295b7f7a16e1b10b04b8f0035c0bad4866cd0845b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.08670",
    "kind": "arxiv",
    "version": 1
  }
}