Rasti (from the German verb rasten, 'to secure, to place firmly, to lock into its place') is a construction toy made from plastic—similar to Lego, Tente and Mis Ladrillos—that was produced by the Knit
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0dfb7c604925be9b9d88929c1514df9cb001e5dcf7c1bfbc19f488eb19ad17b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/888d05d4-a7d3-4bfc-9b01-94f44084b2b1.json and https://artists.proofprofile.net/proofs/artist/888d05d4-a7d3-4bfc-9b01-94f44084b2b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6f2a1c5d8829e81c4a88c686d52ab89141ada7baec131a3c31640943b572ba. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLS2195586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d9a94f582e7fca9002f2b3a2efd43a9ea98290e1083d8e46ad3ff5a671b461c. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLS2191914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8e3cf63ac6911d66501228e102b2701b0bfeb8cbdb332619adc9d6706e8498. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN52135217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea50fa373bc3b12afdfddf295a6edd97dd9bddf00ba5ab88ec3e6135599594e. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN52135218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c18194cc6e5fa55ab4784626312765e7ebdf3d925ae9d3d6a22ec4ca5b2a063. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN52135219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c93c9dfa322244c00e98a00e3c56c7e934c6a4b8ecbf53dfe8e1a8d9befea7. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEN2182305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4e03cf1cd13977183cc6ac432217879f601a36883993a815f6b40ebd77f224. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLS2189391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b33ea7d9cb12f09755d63db1f513f8871b9927dc3dd1f13b4fc0d0d4aab1c1f. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA62379764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5c9698ddc6ead6c0a4fa8e7db960d008bd92a2c96a6cb7664bebc955a1b85b. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES82439634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466fa756402be2843bf9d2d0f075da72e2cb5dab5e6d7ec52503180c3cf261ab. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFE2567841.