Pith Number

pith:TTAAQIJ2

pith:2019:TTAAQIJ2GUC6P4EXC4CPKNNOPY

not attested not anchored not stored refs pending

Hubble Space Telescope analysis of stellar populations within the globular cluster G1 (Mayall II) in M31

A. Bellini, A. P. Milone, A. Renzini, D. Nardiello, G. Piotto, L. R. Bedin, R. M. Rich, S. Cassisi

arxiv:1903.00488 v1 · 2019-03-01 · 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{TTAAQIJ2GUC6P4EXC4CPKNNOPY}

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	2026-05-17T23:51:29.717399Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9cc008213a3505e7f0971704f535ae7e022f523c143a56bf1f251d47747bdf04

Aliases

arxiv: 1903.00488 · arxiv_version: 1903.00488v1 · doi: 10.48550/arxiv.1903.00488 · pith_short_12: TTAAQIJ2GUC6 · pith_short_16: TTAAQIJ2GUC6P4EX · pith_short_8: TTAAQIJ2

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/TTAAQIJ2GUC6P4EXC4CPKNNOPY \
  | 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: 9cc008213a3505e7f0971704f535ae7e022f523c143a56bf1f251d47747bdf04

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91b060ee39dca78bc6bb678acd671af4588c71436c00c61f6cdeb7e580f1a0af",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-03-01T19:00:02Z",
    "title_canon_sha256": "76d59f23c6e3686a6af8c1d8b53c3755a490952404bca5e1422537c6a3228c4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.00488",
    "kind": "arxiv",
    "version": 1
  }
}