Pith Number

pith:2TIP5ECG

pith:2015:2TIP5ECGX3BJL63ZYVV5I7CWAX

not attested not anchored not stored refs pending

A self-consistent, absolute isochronal age scale for young moving groups in the solar neighbourhood

(2) University of Exeter), Cameron P. M. Bell (1), Eric E. Mamajek (1), Tim Naylor (2) ((1) University of Rochester

arxiv:1508.05955 v1 · 2015-08-24 · 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{2TIP5ECGX3BJL63ZYVV5I7CWAX}

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	2026-05-18T01:31:31.215456Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4d0fe9046bec295fb79c56bd47c5605ceeabac63349a52bdadc48d91162bec5

Aliases

arxiv: 1508.05955 · arxiv_version: 1508.05955v1 · doi: 10.48550/arxiv.1508.05955 · pith_short_12: 2TIP5ECGX3BJ · pith_short_16: 2TIP5ECGX3BJL63Z · pith_short_8: 2TIP5ECG

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/2TIP5ECGX3BJL63ZYVV5I7CWAX \
  | 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: d4d0fe9046bec295fb79c56bd47c5605ceeabac63349a52bdadc48d91162bec5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff576530e93a870511b61e1754d21e07da63c5e0bb7806595ffd8de44097e82a",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-08-24T20:15:56Z",
    "title_canon_sha256": "deb10a17603fdf715aa0bde7b9a7cb32802ff9d5ee4b60403e86f9cf0e0e2ff3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.05955",
    "kind": "arxiv",
    "version": 1
  }
}