Pith Number

pith:6ZEPGMWI

pith:2016:6ZEPGMWIMALJKNPUX64AXCEDBG

not attested not anchored not stored refs pending

The long-term evolution of stellar activity

Scott G. Gregory

arxiv:1612.04587 v1 · 2016-12-14 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6ZEPGMWIMALJKNPUX64AXCEDBG}

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	2026-05-18T00:34:52.253290Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f648f332c860169535f4bfb80b888309b18a0fe7d833294f762de3a9ba3cbfe0

Aliases

arxiv: 1612.04587 · arxiv_version: 1612.04587v1 · doi: 10.48550/arxiv.1612.04587 · pith_short_12: 6ZEPGMWIMALJ · pith_short_16: 6ZEPGMWIMALJKNPU · pith_short_8: 6ZEPGMWI

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/6ZEPGMWIMALJKNPUX64AXCEDBG \
  | 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: f648f332c860169535f4bfb80b888309b18a0fe7d833294f762de3a9ba3cbfe0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17705c6931df0f9c1515dab6c0082047b3f1e15be7834760612184c111b076b0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-12-14T11:36:58Z",
    "title_canon_sha256": "99746ec672a1fc955f8b56304a6ad98927f5e1cc8c819218dc77d89810f3719a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.04587",
    "kind": "arxiv",
    "version": 1
  }
}