Pith Number

pith:MRU6NQOL

pith:2015:MRU6NQOLSTX2XYRT6OMBWITVXA

not attested not anchored not stored refs pending

On the Bousfield-Kan spectral sequence for $Q(2)_{(3)}$

Donald M. Larson

arxiv:1507.02650 v1 · 2015-07-09 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MRU6NQOLSTX2XYRT6OMBWITVXA}

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	2026-05-18T01:37:06.176786Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6469e6c1cb94efabe233f3981b2275b82e41317d7f04d800dfa1f449ac129220

Aliases

arxiv: 1507.02650 · arxiv_version: 1507.02650v1 · doi: 10.48550/arxiv.1507.02650 · pith_short_12: MRU6NQOLSTX2 · pith_short_16: MRU6NQOLSTX2XYRT · pith_short_8: MRU6NQOL

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/MRU6NQOLSTX2XYRT6OMBWITVXA \
  | 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: 6469e6c1cb94efabe233f3981b2275b82e41317d7f04d800dfa1f449ac129220

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9714909206f9c46ff00f4ff86453d2493e745a4d9a3fe910b30153c9c39baa10",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2015-07-09T18:50:06Z",
    "title_canon_sha256": "5f01f5d3182f16cb0e8b6ce80950e939e9546a2485a200548a78d4e50f20115d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.02650",
    "kind": "arxiv",
    "version": 1
  }
}