Pith Number

pith:QQ75OM3H

pith:2026:QQ75OM3HR3WRLBQBM6IKYYZPDL

not attested not anchored not stored refs pending

Observers, local measurements, and topology

Michele Cirafici

arxiv:2607.15007 v1 · 2026-07-16 · hep-th · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QQ75OM3HR3WRLBQBM6IKYYZPDL}

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	2026-07-17T01:22:03.565737Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

843fd733678eed1586016790ac632f1ac064c0603b72d919b57ca1be6c5ea07c

Aliases

arxiv: 2607.15007 · arxiv_version: 2607.15007v1 · doi: 10.48550/arxiv.2607.15007 · pith_short_12: QQ75OM3HR3WR · pith_short_16: QQ75OM3HR3WRLBQB · pith_short_8: QQ75OM3H

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/QQ75OM3HR3WRLBQBM6IKYYZPDL \
  | 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: 843fd733678eed1586016790ac632f1ac064c0603b72d919b57ca1be6c5ea07c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3143c50dea7a0694c8d4e1a75ca19e4fff21d7bc369b7d1c302d85c277e6b3b",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2026-07-16T13:53:06Z",
    "title_canon_sha256": "b2be29a6d4e18083c740d458acdfef551760c0696e4ee4356303187478ea34b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.15007",
    "kind": "arxiv",
    "version": 1
  }
}