Pith Number

pith:TGPNXTOZ

pith:2022:TGPNXTOZ7TGFH7Q4UGFONRFQR6

not attested not anchored not stored refs pending

Spectroscopic follow-up of a sub-set of the Gaia/IPHAS catalogue of H\alpha-excess sources

A. F. Pala, C. Knigge, J. E. Drew, K. A. I{\l}kiewicz, M. Fratta, M. Mongui\'o, P. Gandhi, S. Scaringi

arxiv:2211.01694 v1 · 2022-11-03 · 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{TGPNXTOZ7TGFH7Q4UGFONRFQR6}

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	2026-07-05T05:16:26.754386Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

999edbcdd9fccc53fe1ca18ae6c4b08f99a8e3d3f8c47df722db868ca4626cf5

Aliases

arxiv: 2211.01694 · arxiv_version: 2211.01694v1 · doi: 10.48550/arxiv.2211.01694 · pith_short_12: TGPNXTOZ7TGF · pith_short_16: TGPNXTOZ7TGFH7Q4 · pith_short_8: TGPNXTOZ

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/TGPNXTOZ7TGFH7Q4UGFONRFQR6 \
  | 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: 999edbcdd9fccc53fe1ca18ae6c4b08f99a8e3d3f8c47df722db868ca4626cf5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7214e500fbb59b419cd8e266156c37476a1dea1d8942911cd1a4539f0377f35",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-11-03T10:29:45Z",
    "title_canon_sha256": "1f8864680d14420c7223f7b1dff52e9bba0d05188bb17554bec279e41d61078c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2211.01694",
    "kind": "arxiv",
    "version": 1
  }
}