Pith Number

pith:GMEMHX2K

pith:2016:GMEMHX2KKQAJDUGWWA7EPT2BJR

not attested not anchored not stored refs pending

The Red Supergiant Content of M31

Kate Anne Evans, Philip Massey

arxiv:1605.07900 v1 · 2016-05-25 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GMEMHX2KKQAJDUGWWA7EPT2BJR}

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	2026-05-18T01:08:40.989568Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3308c3df4a540091d0d6b03e47cf414c5747291a71436845fe086e584045b68b

Aliases

arxiv: 1605.07900 · arxiv_version: 1605.07900v1 · doi: 10.48550/arxiv.1605.07900 · pith_short_12: GMEMHX2KKQAJ · pith_short_16: GMEMHX2KKQAJDUGW · pith_short_8: GMEMHX2K

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/GMEMHX2KKQAJDUGWWA7EPT2BJR \
  | 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: 3308c3df4a540091d0d6b03e47cf414c5747291a71436845fe086e584045b68b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe60e3e1eeb9800d78c9acdd5456a3e6fc26c82f545d94ddeddff8d3905530cc",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-05-25T14:36:15Z",
    "title_canon_sha256": "deeedaa986203d3cf54a4ccbfbda3d6e6f3e8bba903ef502db59ca86d32e5882"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.07900",
    "kind": "arxiv",
    "version": 1
  }
}