urw-a

Canonical key

Systre key

3 1 2 0 0 0 1 3 0 0 0 1 4 0 0 0 1 5 0 0 0 1 6 0 0 0 2 3 0 0 0 2 7 0 0 0 2 8 0 0 0 2 9 0 0 0 3 10 0 0 0 3 11 0 0 0 3 12 0 0 0 4 5 0 0 0 4 9 0 0 0 4 13 0 0 0 4 14 0 0 0 5 12 0 0 0 5 15 0 0 0 5 16 0 0 0 6 17 0 0 0 6 18 0 0 0 7 9 0 0 0 7 10 0 0 0 7 19 0 0 0 7 20 0 0 0 8 21 0 0 0 8 22 0 0 0 9 13 0 0 0 9 23 0 0 0 10 12 0 0 0 10 20 0 0 0 10 24 0 0 0 11 25 0 0 0 11 26 0 0 0 12 15 0 0 0 12 27 0 0 0 13 15 0 0 0 13 20 0 0 0 13 28 0 0 0 14 29 0 0 0 14 30 0 0 0 15 20 0 0 0 15 31 0 0 0 16 32 0 0 0 16 33 0 0 0 17 18 0 0 0 17 34 0 0 0 18 35 0 0 0 19 36 0 0 0 19 37 0 0 0 20 38 0 0 0 21 22 0 0 0 21 39 0 0 0 22 40 0 0 0 23 41 0 0 0 23 42 0 0 0 24 43 0 0 0 24 44 0 0 0 25 26 0 0 0 25 45 0 0 0 26 46 0 0 0 27 47 0 0 0 27 48 0 0 0 28 49 0 0 0 28 50 0 0 0 29 30 0 0 0 29 51 0 0 0 30 52 0 0 0 31 53 0 0 0 31 54 0 0 0 32 33 0 0 0 32 55 0 0 0 33 56 0 0 0 34 40 0 0 0 34 46 0 0 0 34 57 0 0 0 35 52 0 0 0 35 56 0 0 0 35 58 0 0 0 36 37 0 0 0 36 59 0 0 0 37 60 0 0 0 38 61 0 0 0 38 62 0 0 0 39 60 0 0 0 39 63 0 0 0 39 64 0 0 0 40 46 0 0 0 40 65 0 0 0 41 42 0 0 0 41 64 0 0 0 42 66 0 0 0 43 44 0 0 0 43 67 0 0 0 44 68 0 0 0 45 68 0 0 0 45 69 0 0 0 45 70 0 0 0 46 71 0 0 0 47 48 0 0 0 47 70 0 0 0 48 72 0 0 0 49 50 0 0 0 49 69 1 0 0 50 71 1 0 0 51 66 0 0 0 51 67 0 1 0 51 71 1 0 0 52 56 0 0 0 52 68 0 1 0 53 54 0 0 0 53 63 0 0 1 54 65 0 0 1 55 59 -1 1 1 55 65 0 0 1 55 72 0 0 0 56 60 -1 1 1 57 59 -1 1 0 57 61 -1 1 0 57 67 -1 1 0 58 62 -1 1 0 58 63 -1 1 1 58 69 0 1 0 59 67 0 0 0 60 64 0 0 0 61 62 0 0 0 63 69 1 0 -1 64 70 1 0 -1 65 72 0 0 -1 66 71 1 0 0 66 72 1 0 -1 68 70 0 0 0

(rcsr)The canonical Systre key, copied verbatim from the local RCSR Systre archive of 2019-06-01. It is not computed here and cannot be: no Gavrog/Systre toolchain runs on this machine, so nothing on this site derives, extends, repairs or verifies a key. The checksum served beside it is the one the archive itself carries, copied from the same block, so that this copy can be checked against the upstream file; no checksum is computed or verified here.

Checksum

4a29c86838cc426dff0b6076e0fad11e (rcsr)

Vertices

The mapping of coordination sequences onto vertex classes that the source supplied was checked against a walk over the periodic topology of the net itself, one walk per vertex class, and agreed. The sequences are the values the source supplied; the walk settled nothing but which class each one describes.

Not corroborated. The coordination sequences beside these symbols carry a corroboration of their own, stated under coordination_sequences; the vertex symbols carry none. A vertex symbol names the shortest ring at each angle of a vertex, no ring perception runs anywhere in this project, and so there is nothing here that could reproduce one: these strings are served on the word of the source alone. What was checked is their shape — a d-coordinated vertex has d(d-1)/2 angles and a whole symbol names a ring at each, and a string that lists fewer is flagged rather than served as a symbol. A string that passes that count can still be wrong in its rings, and nothing here says otherwise.

Provenance

Source

rcsr+mofplus — reconciled from both, field by field

Identifier at the source

urw-a

Retrieved

2026-09-09

Licence

CC BY 4.0 — verified from MOF++ project decision, CONTEXT §6 (Licensing): MOF+ is this group's own service, so nets retrieved from it are the project's own data to license, and the project licenses its data CC BY 4.0. No third-party grant is claimed..

Published

yes

Position in the collection

RCSR index

2315 (derived) Derived by this site, not published by RCSR: the 1-based position of the symbol in the ascending ASCII-lexicographic ordering of the 2930 symbols in the RCSR Systre archive of 2019-06-01. RCSR does not number its nets; this is our ordering of their symbols and nothing more.

Complexity rank

2388 The order the ingest processed this net in, simplest first. A different number from the RCSR index above, meaning a different thing.