Pith Number

pith:U67MOADF

pith:2015:U67MOADFTLG2MRRBTOKQFEX77P

not attested not anchored not stored refs pending

Chemical Abundances and Dust in the Halo Planetary Nebula K648 in M15: Its Origin and Evolution based on an Analysis of Multiwavelength Data

2), (2) Subaru Telescope/NAOJ, (3) Chungbuk National University, 4), (4) University of Illinois at Urbana-Champaign), Akito Tajitsu (2) ((1) ASIAA, Masaaki Otsuka (1, Siek Hyung (3

arxiv:1502.03072 v1 · 2015-02-10 · 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{U67MOADFTLG2MRRBTOKQFEX77P}

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	2026-05-18T01:41:03.917191Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7bec700659acda646219b950292fffbd2b6bf4f963f60af3a6abeddcb1da003

Aliases

arxiv: 1502.03072 · arxiv_version: 1502.03072v1 · doi: 10.48550/arxiv.1502.03072 · pith_short_12: U67MOADFTLG2 · pith_short_16: U67MOADFTLG2MRRB · pith_short_8: U67MOADF

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/U67MOADFTLG2MRRBTOKQFEX77P \
  | 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: a7bec700659acda646219b950292fffbd2b6bf4f963f60af3a6abeddcb1da003

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b10b857c62d815d2cd2a2d9e8d0f942b0cfa32d3d26f07256c68e8f27bf082a5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-02-10T20:25:16Z",
    "title_canon_sha256": "48da99e3bbe703959d165fe73ed60d503ff2a19d1d2418664a4ca322331ce712"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.03072",
    "kind": "arxiv",
    "version": 1
  }
}