Pith Number

pith:GGPV3C7T

pith:2021:GGPV3C7TCWS4GE5AK5NLQAQWMK

not attested not anchored not stored refs pending

Quadratic speedup for spatial search by continuous-time quantum walk

J\'er\'emie Roland, Leonardo Novo, Shantanav Chakraborty, Simon Apers

arxiv:2112.12746 v1 · 2021-12-23 · quant-ph · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GGPV3C7TCWS4GE5AK5NLQAQWMK}

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	2026-07-05T05:08:50.595895Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

319f5d8bf315a5c313a0575ab8021662add6af4db791fc312610942f132aabe8

Aliases

arxiv: 2112.12746 · arxiv_version: 2112.12746v1 · doi: 10.48550/arxiv.2112.12746 · pith_short_12: GGPV3C7TCWS4 · pith_short_16: GGPV3C7TCWS4GE5A · pith_short_8: GGPV3C7T

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/GGPV3C7TCWS4GE5AK5NLQAQWMK \
  | 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: 319f5d8bf315a5c313a0575ab8021662add6af4db791fc312610942f132aabe8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2385a5b274dd47ff49591bf922c3a898fa6952d981a91d9a39ecd070fd1d2906",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-12-23T17:57:49Z",
    "title_canon_sha256": "796e3cf56292b501d15b0c057bca9ef2bf47f70fc8434526366ae3ac1651868d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.12746",
    "kind": "arxiv",
    "version": 1
  }
}