Pith Number

pith:B6MYI6IF

pith:2007:B6MYI6IFPTI5NDVSYPVRHAYVWU

not attested not anchored not stored refs pending

On a problem of Juhasz and van Mill

Boaz Tsaban, Saharon Shelah

arxiv:0710.2768 v2 · 2007-10-15 · math.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B6MYI6IFPTI5NDVSYPVRHAYVWU}

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	2026-05-18T04:37:11.589546Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f998479057cd1d68eb2c3eb138315b50fc173bba6a0e0418e8d2480e60c7e40

Aliases

arxiv: 0710.2768 · arxiv_version: 0710.2768v2 · doi: 10.48550/arxiv.0710.2768 · pith_short_12: B6MYI6IFPTI5 · pith_short_16: B6MYI6IFPTI5NDVS · pith_short_8: B6MYI6IF

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/B6MYI6IFPTI5NDVSYPVRHAYVWU \
  | 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: 0f998479057cd1d68eb2c3eb138315b50fc173bba6a0e0418e8d2480e60c7e40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9efae7790db6e6bdaeec01c2ce6afb5e6c8ac4be750cf73fa778213c91c26917",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2007-10-15T10:34:04Z",
    "title_canon_sha256": "3c9e8eed56efc4a78d3f29870cef9884a118ddbf92ed256bb0d2ce1efdc8670a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0710.2768",
    "kind": "arxiv",
    "version": 2
  }
}