Pith Number

pith:H2Q6WQWP

pith:2015:H2Q6WQWPGTSIB7BFT2QMVJ6YHX

not attested not anchored not stored refs pending

Investigating student understanding of quantum entanglement

Antje Kohnle, Erica Deffebach

arxiv:1512.02346 v1 · 2015-12-08 · physics.ed-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{H2Q6WQWPGTSIB7BFT2QMVJ6YHX}

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	2026-05-18T01:24:44.852546Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ea1eb42cf34e480fc259ea0caa7d83de4401a5781a103714950cf79fad92c18

Aliases

arxiv: 1512.02346 · arxiv_version: 1512.02346v1 · doi: 10.48550/arxiv.1512.02346 · pith_short_12: H2Q6WQWPGTSI · pith_short_16: H2Q6WQWPGTSIB7BF · pith_short_8: H2Q6WQWP

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/H2Q6WQWPGTSIB7BFT2QMVJ6YHX \
  | 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: 3ea1eb42cf34e480fc259ea0caa7d83de4401a5781a103714950cf79fad92c18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "883a0088760f1a73a9bda1b5029d6868a443113118132d002848215a5fce1a7b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2015-12-08T06:23:10Z",
    "title_canon_sha256": "0fb34a113ae18a3cc32f91a8ca15a84b10590c3a1ad9a2c5f358bda888ab0699"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.02346",
    "kind": "arxiv",
    "version": 1
  }
}