Pith Number

pith:NVPAAGNM

pith:2017:NVPAAGNM3WU2ZLHHZ2UK45XBO3

not attested not anchored not stored refs pending

Exploring the limits of no backward in time signalling

Anthony J. Short, Nicolas Brunner, Paul Skrzypczyk, Ralph Silva, Sandu Popescu, Yelena Guryanova

arxiv:1708.00669 v6 · 2017-08-02 · 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{NVPAAGNM3WU2ZLHHZ2UK45XBO3}

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	2026-07-05T00:25:06.884524Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d5e0019acdda9acace7cea8ae76e176d35c826476054da2d488626ddd71ede5

Aliases

arxiv: 1708.00669 · arxiv_version: 1708.00669v6 · doi: 10.48550/arxiv.1708.00669 · pith_short_12: NVPAAGNM3WU2 · pith_short_16: NVPAAGNM3WU2ZLHH · pith_short_8: NVPAAGNM

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/NVPAAGNM3WU2ZLHHZ2UK45XBO3 \
  | 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: 6d5e0019acdda9acace7cea8ae76e176d35c826476054da2d488626ddd71ede5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66b045c760ae20b9a41cd04649a6268d691241dfe06985a0f2ee72489043b579",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-08-02T09:41:42Z",
    "title_canon_sha256": "b1665d298d814cd4a18b87089c90e9ce2214a7e5c58cdab672a36d5d88571897"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.00669",
    "kind": "arxiv",
    "version": 6
  }
}