Kukerpillid is an Estonian folk music ensemble established in 1972. It plays folk music of Estonia, as well as of other places of the world.Kukerpillid – 30, Kultuur ja EluKukerpillid websiteImmo Mihk
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 0x579ee64d11ace8158257fb7836cd6534de6ce1f27fca3165b4cda954b1d8f34e. 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/74b35b22-5565-419c-94e5-fc1b14e6ad5c.json and https://artists.proofprofile.net/proofs/artist/74b35b22-5565-419c-94e5-fc1b14e6ad5c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Šoti Laulud Šoti Klubis: 14 Lugu Robert Burns'i Tekstidele
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 0x142c214cf5a81c9bd5d435ef79e753fc12d18b4b88b88616b5a76f2a53bdf184. 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/EEKH10700049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733e83efecd69d1718149b9fa2ffa94afce7178cc2b3c69210df0c5c705b6f15. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/EEKH10700025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09421a5767a876fafec86958d09d3b32e614aa9a136abb122043202430072c64. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/EEKH10700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf8e8af8de7070b7cf779d5853b6e89065d730b31fd9c23bbf1a38b83daa1be. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/EEKH10700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0addcb2b1b7fd63f455ac6cf0c6ae5a3fbbc3531a90b7686c88256e64f5657b1. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/EEKH10700068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11076bd2a29ff6e497f384e91c30f53e89f8537aa82902d59d65be6e66df4c95. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/EEKH10700020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b2d69eaff917b5b9b64a15690f7e70c794255eb66718887175f426a43d475b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/EEAV11100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d94405572ff0334e4df9046c4f39102e1ee0a2acc91c39900ce47c52356e11a. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/EEAV11100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc95f9554f6f05034ded7cc2a7e8b229de3917186a03f9deb4f68a930207824c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/EEAV11100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397360a5773300a710c6e590b802d68aa1dda37376b1dd11e61fe5a7a77d870c. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/EEAV11100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd658fb71aa9156d43c9b2c9d206ecf8cd62497024adc37e8b94b722cadaea91f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/EEAV11100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088314dcad0fbe55dbd3e513c23bac6be37fdd1773a4c441bf4c3c8a1716539f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/EEKH11200008.