Pith Number

pith:U5I3OO6V

pith:2001:U5I3OO6VIDILWRJPNJHDR4BDBM

not attested not anchored not stored refs pending

Reply to `Singularities of the mixed state phase'

A. Ekert, A.K. Pati, D.K.L. Oi, E. Sj\"oqvist, J. Anandan, M. Ericsson, V. Vedral

arxiv:quant-ph/0109139 v2 · 2001-09-27 · 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{U5I3OO6VIDILWRJPNJHDR4BDBM}

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	2026-05-18T01:09:07.476036Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a751b73bd540d0bb452f6a4e38f0230b232cc5019238a1eb06a61200088b2d98

Aliases

arxiv: quant-ph/0109139 · arxiv_version: quant-ph/0109139v2 · doi: 10.48550/arxiv.quant-ph/0109139 · pith_short_12: U5I3OO6VIDIL · pith_short_16: U5I3OO6VIDILWRJP · pith_short_8: U5I3OO6V

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/U5I3OO6VIDILWRJPNJHDR4BDBM \
  | 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: a751b73bd540d0bb452f6a4e38f0230b232cc5019238a1eb06a61200088b2d98

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56b4877fbd6a17567a29795498a97524a306adb163a335b2d960dfd4757d67a6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2001-09-27T08:08:56Z",
    "title_canon_sha256": "f21b0ccc3bc3865edd65f6805f7f6856f0992dc1c1780f0580f8eec9ac9e2bf5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0109139",
    "kind": "arxiv",
    "version": 2
  }
}