Pith Number

pith:3A3O2PHF

pith:2021:3A3O2PHFRSQQR4LDZK4OU2575S

not attested not anchored not stored refs pending

Fidelity based purity and coherence for quantum states

Indrajith V S, R. Muthuganesan, R. Sankaranarayanan

arxiv:2104.03844 v1 · 2021-04-08 · 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{3A3O2PHFRSQQR4LDZK4OU2575S}

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	2026-07-05T02:30:24.157259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d836ed3ce58ca108f163cab8ea6bbfec80b7896512b32ec53bd5af06b740786e

Aliases

arxiv: 2104.03844 · arxiv_version: 2104.03844v1 · doi: 10.48550/arxiv.2104.03844 · pith_short_12: 3A3O2PHFRSQQ · pith_short_16: 3A3O2PHFRSQQR4LD · pith_short_8: 3A3O2PHF

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/3A3O2PHFRSQQR4LDZK4OU2575S \
  | 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: d836ed3ce58ca108f163cab8ea6bbfec80b7896512b32ec53bd5af06b740786e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c9636cb0bbd3109549aba6960e0fb6466f2eb0b4289eba3bf1c6d3ebb195c18",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-04-08T15:38:46Z",
    "title_canon_sha256": "dc43409876387ec9cd5d60f85038c312e6c626ab268a7f9177c6337e5de9fe36"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.03844",
    "kind": "arxiv",
    "version": 1
  }
}