Pith Number

pith:WNAS6AGP

pith:1999:WNAS6AGPF3I7PSD7JYX4QYI27E

not attested not anchored not stored refs pending

A Modified Magnitude System that Produces Well-Behaved Magnitudes, Colors, and Errors Even for Low Signal-to-Noise Ratio Measurements

2), (2) Princeton University Observatory, (3) The Johns Hopkins University), Alex Szalay (3) ((1) for the SDSS consortium, Jim Gunn (2), Robert Lupton (1

arxiv:astro-ph/9903081 v1 · 1999-03-04 · 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{WNAS6AGPF3I7PSD7JYX4QYI27E}

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.

Cited by

2 papers in Pith

Recalibration of SDSS photometric zero-points based on the InfraRed Flux Method temperature scale

Empirical colour--effective temperature relations in the SDSS system from IRFM temperatures of GALAH and APOGEE stars

Receipt and verification

First computed	2026-07-04T15:20:40.934987Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3412f00cf2ed1f7c87f4e2fc8611af93f053421e1fcc034bbb5d46216dd5df8

Aliases

arxiv: astro-ph/9903081 · arxiv_version: astro-ph/9903081v1 · doi: 10.48550/arxiv.astro-ph/9903081 · pith_short_12: WNAS6AGPF3I7 · pith_short_16: WNAS6AGPF3I7PSD7 · pith_short_8: WNAS6AGP

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/WNAS6AGPF3I7PSD7JYX4QYI27E \
  | 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: b3412f00cf2ed1f7c87f4e2fc8611af93f053421e1fcc034bbb5d46216dd5df8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f52fc9a8e93b94f7fd5b9734df4c2a04dbb5908eab55ed3dba9fcf13357e6eb",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-03-04T22:24:49Z",
    "title_canon_sha256": "ee54555d3337345e5ff3dfb097c21b7c0ab2ce258cfd94e352104ff492671403"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9903081",
    "kind": "arxiv",
    "version": 1
  }
}