Pith Number

pith:JODCU2RP

pith:2025:JODCU2RPOPKV3JLLH6Q2JZCAIR

not attested not anchored not stored refs pending

Physical Observers and Quantum Reconstructions

Dorian Daimer, Susanne Still

arxiv:2506.01561 v2 · 2025-06-02 · 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{JODCU2RPOPKV3JLLH6Q2JZCAIR}

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	2026-07-05T11:20:54.763857Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b862a6a2f73d55da56b3fa1a4e440445a06055fd93bcaf54f13c73d61fde7b9

Aliases

arxiv: 2506.01561 · arxiv_version: 2506.01561v2 · doi: 10.48550/arxiv.2506.01561 · pith_short_12: JODCU2RPOPKV · pith_short_16: JODCU2RPOPKV3JLL · pith_short_8: JODCU2RP

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/JODCU2RPOPKV3JLLH6Q2JZCAIR \
  | 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: 4b862a6a2f73d55da56b3fa1a4e440445a06055fd93bcaf54f13c73d61fde7b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63d60aa7cb05dc48e477f93fc4de89588089ebe8552c5c0065fd33e881469804",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-06-02T11:37:54Z",
    "title_canon_sha256": "c0c8548e9ca5c77ca38727ce9805fbee4c6a8b8852466b50567bba68030e950e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.01561",
    "kind": "arxiv",
    "version": 2
  }
}