Pith Number

pith:TD753EFY

pith:2007:TD753EFYN4IKSC2RXNRAGOTDAN

not attested not anchored not stored refs pending

UBVRI Photometric Standard Stars Around the Sky at -50 Degrees Declination

Arlo U. Landolt

arxiv:0704.3034 v1 · 2007-04-23 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TD753EFYN4IKSC2RXNRAGOTDAN}

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	2026-05-18T04:37:11.710906Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

98ffdd90b86f10a90b51bb62033a630353d25e4e2c868a65e5ab81474db49ef9

Aliases

arxiv: 0704.3034 · arxiv_version: 0704.3034v1 · doi: 10.48550/arxiv.0704.3034 · pith_short_12: TD753EFYN4IK · pith_short_16: TD753EFYN4IKSC2R · pith_short_8: TD753EFY

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/TD753EFYN4IKSC2RXNRAGOTDAN \
  | 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: 98ffdd90b86f10a90b51bb62033a630353d25e4e2c868a65e5ab81474db49ef9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b982a9eddb17345aecaaecbf7dc86576bb796741eeb99a62f761d8e68d550f1a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-04-23T15:50:15Z",
    "title_canon_sha256": "30f6b1d9931d91fd6d4134a0b728492724bf822e21300626516abfc5c83b0d91"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.3034",
    "kind": "arxiv",
    "version": 1
  }
}