Pith Number

pith:7NFMD3TK

pith:2016:7NFMD3TKAF6CJONPHYGGAPNQ4R

not attested not anchored not stored refs pending

Poc Sets, Median Algebras and Group Actions

Martin Roller

arxiv:1607.07747 v1 · 2016-07-24 · math.GN · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7NFMD3TKAF6CJONPHYGGAPNQ4R}

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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

3 papers in Pith

Intrinsic uniform structure on median algebras

Tameness of actions on finite rank median algebras

Weak order on groups generated by involutions

Receipt and verification

First computed	2026-05-18T01:10:25.376404Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb4ac1ee6a017c24b9af3e0c603db0e470c6fc6eec25272521f9d35c54717596

Aliases

arxiv: 1607.07747 · arxiv_version: 1607.07747v1 · doi: 10.48550/arxiv.1607.07747 · pith_short_12: 7NFMD3TKAF6C · pith_short_16: 7NFMD3TKAF6CJONP · pith_short_8: 7NFMD3TK

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/7NFMD3TKAF6CJONPHYGGAPNQ4R \
  | 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: fb4ac1ee6a017c24b9af3e0c603db0e470c6fc6eec25272521f9d35c54717596

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f608d73af86b82250b5dfaf2c4b0fe842dbcc828cbcbd8275f7fbd5e4740b7da",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2016-07-24T16:12:44Z",
    "title_canon_sha256": "d9953cfd3187a55ed30198defe8f79481ad328a70287cb632bb338a90d9a529b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.07747",
    "kind": "arxiv",
    "version": 1
  }
}