pith. sign in
Pith Number

pith:R5K7HV7F

pith:2018:R5K7HV7F23HVPJ2WAFXJQFGWIY
not attested not anchored not stored refs pending

Perfect tangles

Johannes Berger, Tobias J. Osborne

arxiv:1804.03199 v1 · 2018-04-09 · quant-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{R5K7HV7F23HVPJ2WAFXJQFGWIY}

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.

Cited by

1 paper in Pith

Receipt and verification
First computed 2026-05-18T00:18:56.706652Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

8f55f3d7e5d6cf57a756016e9814d64600eca213f6ce69c0e9db0a3b0b2b67fa

Aliases

arxiv: 1804.03199 · arxiv_version: 1804.03199v1 · doi: 10.48550/arxiv.1804.03199 · pith_short_12: R5K7HV7F23HV · pith_short_16: R5K7HV7F23HVPJ2W · pith_short_8: R5K7HV7F
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/R5K7HV7F23HVPJ2WAFXJQFGWIY \
  | 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: 8f55f3d7e5d6cf57a756016e9814d64600eca213f6ce69c0e9db0a3b0b2b67fa
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "32d865f8588554fd17f1a13e432fe54441cee7f95ce95ecf0a6519566099abba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-04-09T19:38:11Z",
    "title_canon_sha256": "c291167b084d0e0267c0fad4e3508d61bedecd2f0afab71254a63b43c8edad20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.03199",
    "kind": "arxiv",
    "version": 1
  }
}