Pith Number

pith:Q4TTNSYV

pith:2017:Q4TTNSYV6NDMA4CC7XLMPTHNZL

not attested not anchored not stored refs pending

The time-reverse of any causal theory is eternal noise

Bob Coecke, John H. Selby, Stefano Gogioso

arxiv:1711.05511 v2 · 2017-11-15 · quant-ph · gr-qc · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q4TTNSYV6NDMA4CC7XLMPTHNZL}

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	2026-05-18T00:28:40.154730Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

872736cb15f346c07042fdd6c7ccedcada9efb1c5418cd60c0aba247da1c1eb2

Aliases

arxiv: 1711.05511 · arxiv_version: 1711.05511v2 · doi: 10.48550/arxiv.1711.05511 · pith_short_12: Q4TTNSYV6NDM · pith_short_16: Q4TTNSYV6NDMA4CC · pith_short_8: Q4TTNSYV

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/Q4TTNSYV6NDMA4CC7XLMPTHNZL \
  | 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: 872736cb15f346c07042fdd6c7ccedcada9efb1c5418cd60c0aba247da1c1eb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b8deabaee69b50c639fc5ee1d3ed8a82c807ba104d762bd41ad71217cab65e4",
    "cross_cats_sorted": [
      "gr-qc",
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-11-15T12:01:07Z",
    "title_canon_sha256": "08020d9e1f5a1b2e6e69a1b60620f806f93591adee2db025d5565fc757be57f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.05511",
    "kind": "arxiv",
    "version": 2
  }
}