Bengt Hennings is a dansband from Länghem in Sweden, established in 1967, and scoring album chart successes in Sweden by the late 2000s-early 2010s. The band participated at Dansbandskampen 2008. The
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9cf68c69f3c6273d3f62350b25f7c7fe0236571494521360670cc8d4dba93d1. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/938faabc-8d6e-422d-8aed-6df52fee87f2.json and https://artists.proofprofile.net/proofs/artist/938faabc-8d6e-422d-8aed-6df52fee87f2.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252fca33fbcd0115ea72578137c0ed1a3ae72750a6039c92d12d66fdc0df110f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6c0b877facb963113edafaec7196b52559642788ad542e8f2b45c73908ce8a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6efb3010f99deba37aaa53924ebfa69f15002c5643129727628d0ecaf3ee8d82. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SEPQM0612924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d6b9444757587c5e470bb912fab5af25b3e274b7e519894adb6c1a71cd7ef0. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/SEVSZ1100308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca61301132b5349d92389b381cfe40bb75f644cb905d5250fc4c361c41d29cc4. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SEVSZ1202102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe218c9b4daa0f12914ab492fa4feeb47d64d8fdbb1eaf0e2a96425ba65e0a0c9. 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/SEVSZ1202103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263428b133a322f8d2a148d27da722898d74d8a8f355a020fe9f86bfbf9338d4. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/SEVSZ1202107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3fb22c0904b9045441825db2b216ca40a7c7dac04ddb3e5921ca7d51f7d99f. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/SEVSZ1202108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9730704d05606b2524afdbb905dfab36c320c8e252a9fe2d7d9a7ec339290bbc. 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/SEVSZ1202112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df8220653a352da55359a0308318fd8625d924bb0288b4c509f94288a625499. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SEVSZ1100301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68c100da5ede4ff5361f1bc74ab68ea3d7adb78ff6f8663d1e97fb154ecf0ac. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/SEVSZ1201315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f7a714b99207ca487cf68af30f34c128b6f700690f773db98554677afcfcbd. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SEVSZ0700102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7aa584b816df209828b97eb5065b3dca25067cbe091b4b924d69b8d5cecadcf. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:09:40Z), 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/SEVSZ1100309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4263102165a238347ce236db004cea0bf3ad4fc76a0a257804ce3d97ec7cc63e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SEVSZ1501503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9cda02999371fc516a9c4d21301c3f5982b49d1546b4ac8591825f44465bc7. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/SEVSZ1501507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f923e9ec905e4e5f53137d50c3f743cf8a4c47d1fac28da638414d5cc44605. 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/SEVSZ1501508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54cb04c7a9752ab7818ad8364319d03285fb3fac02fea1b71659eb4375567e92. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:38:14Z), 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/SEVSZ1501512.