Pith Number

pith:NTZIBEX6

pith:2001:NTZIBEX6LOY2EVZ73LUBCMW7FT

not attested not anchored not stored refs pending

The evolution of field early-type galaxies to z~0.7

(2) Space Telescope Science Institute, (3) European Southern Observatories, (4) Universita' di Milano), G. Bertin (4) ((1) California Institute of Technology, M. Stiavelli (2), P. M{\o}ller (3), S. Casertano (2), T. Treu (1)

arxiv:astro-ph/0111504 v1 · 2001-11-27 · 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{NTZIBEX6LOY2EVZ73LUBCMW7FT}

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	2026-05-18T02:40:35.759906Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6cf28092fe5bb1a2573fdae81132df2cd808742d933f6c0fb29787102159e75a

Aliases

arxiv: astro-ph/0111504 · arxiv_version: astro-ph/0111504v1 · doi: 10.48550/arxiv.astro-ph/0111504 · pith_short_12: NTZIBEX6LOY2 · pith_short_16: NTZIBEX6LOY2EVZ7 · pith_short_8: NTZIBEX6

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/NTZIBEX6LOY2EVZ73LUBCMW7FT \
  | 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: 6cf28092fe5bb1a2573fdae81132df2cd808742d933f6c0fb29787102159e75a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bef644e4cef8a4fde463f6066d01fe18ca65b90c1d67e2a9e72a4b39b76af133",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-11-27T16:19:59Z",
    "title_canon_sha256": "1b5c7d5d24fcf06ce7c7b0fe95d62ddc2b021421fa40205a65c32b051e5d99e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0111504",
    "kind": "arxiv",
    "version": 1
  }
}