Pith Number

pith:MUI5WEKL

pith:2016:MUI5WEKLNAZYD2NAT3XT2GMBEM

not attested not anchored not stored refs pending

Hiding its age: the case for a younger bulge

A. Calamida, M. Haywood, O. Snaith, P. Di Matteo

arxiv:1606.04092 v1 · 2016-06-13 · astro-ph.GA

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

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	2026-05-18T01:03:18.613509Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6511db114b683381e9a09eef3d1981230fb5e610c9180500c8450e72ec73b5be

Aliases

arxiv: 1606.04092 · arxiv_version: 1606.04092v1 · doi: 10.48550/arxiv.1606.04092 · pith_short_12: MUI5WEKLNAZY · pith_short_16: MUI5WEKLNAZYD2NA · pith_short_8: MUI5WEKL

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/MUI5WEKLNAZYD2NAT3XT2GMBEM \
  | 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: 6511db114b683381e9a09eef3d1981230fb5e610c9180500c8450e72ec73b5be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57b2621bf58f50442be70caf316ddb2098235ce78266f2d136021b7b1bf1509c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-06-13T19:59:57Z",
    "title_canon_sha256": "af41ea91f8938ffa5a484e69750ffa4da4b71090c84f13c970ce10b82b472631"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.04092",
    "kind": "arxiv",
    "version": 1
  }
}