Pith Number

pith:TEWY7PRT

pith:2015:TEWY7PRTVCLBVM3WNKYC2H5FRO

not attested not anchored not stored refs pending

On forbidden sets

Antonio Cascales, Francisco Balibrea

arxiv:1505.07043 v1 · 2015-05-26 · math.DS

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TEWY7PRTVCLBVM3WNKYC2H5FRO}

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	2026-05-18T02:03:27.307899Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

992d8fbe33a8961ab3766ab02d1fa58bbd56b0fc0c858fc65f978ed8f2908c4f

Aliases

arxiv: 1505.07043 · arxiv_version: 1505.07043v1 · doi: 10.48550/arxiv.1505.07043 · pith_short_12: TEWY7PRTVCLB · pith_short_16: TEWY7PRTVCLBVM3W · pith_short_8: TEWY7PRT

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/TEWY7PRTVCLBVM3WNKYC2H5FRO \
  | 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: 992d8fbe33a8961ab3766ab02d1fa58bbd56b0fc0c858fc65f978ed8f2908c4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86f858d232681a98b8396f2221b0ad08abdff840b2f8f4337a67c6baeef1314c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2015-05-26T16:44:40Z",
    "title_canon_sha256": "346fe257324ab58502a769b88777c9d5b92d014d6c4154460a8a71fd38a0b33f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.07043",
    "kind": "arxiv",
    "version": 1
  }
}