Anders Engbergs was a dansband in Skara, Sweden, reestablished in 1994 when Lotta & Anders Engbergs orkester divided into two bands, Anders Engbergs and Lotta Engbergs, three years after the divorce o
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 0xd46181c35c3bb3afe9d676cf6453da8a66e97c79d56435db0dd36cbba2391c39. 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/25587b2a-faac-497e-ba68-306dd7427871.json and https://artists.proofprofile.net/proofs/artist/25587b2a-faac-497e-ba68-306dd7427871.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 0x396b9d907748a713c73fd6bb1046ef76fc02d4db79020d36e6f036b527753cb6. 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/SEAMA1000568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1bd2a0cc3465d18c4b456ae94e5070721d5bca7fd273da1e98e39cf01d07e2d. 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/SEAMA1000569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5126257bf75aadc10d1a1602fb075de86f345abd0f508a242a499fd3aaddee0. 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/SEAMA0600171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf898a4c2c281a23ec093eb7cef365ed77043da46906f7652bf64026dea9d6d31. 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/SEAMA1000570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1d401d9db53470cdb08476a542606ed75f5579450324c9bea18169b9e697bb. 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/SEAMA1000571.
Charlie Lirar Boogie (Baby Likes to Rock It)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c193b59461fb9b881ec211e20fca462a880dac89b8cacbaa137b2a2a0290742. 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/SEAMA1000572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d97e6ff611a0f6c1fd2c499a03ec521473fdf124ca66d8ae922da58310990d. 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/SEAMA1000573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ec953f93ff74b8945b0a5570b7d85d439a6d9a1f1f2c784e24c26eba2cc952. 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/SEAMA1000574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1258f8769d603f5537c8b58173af2a0af368d7776b5852e1cacacb64b644e4. 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/SEAMA1000575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1173550358a19483c86ab02d997e623e7b7e3125c88337ce0840807de3f498. 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/SEAMA1000576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96834b709178ac147abcaa8d1584f115660579ec310e31ac280dd7caeb4a49cc. 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/SEAMA1000577.
Mot okänt land (Far Og Sönn I Fremmedland)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79609bb415d435ae7e7fa18d5312ac8434ba94e92bc8ee9b661f3bc8964d6a2d. 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/SEAMA1000578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07adea3f0d533383b827f4a274c9462e392ae72ed93e817b1bbb51d0d27b1da3. 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/SEAMA0700909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7cd145c8986d733e24ce8d95ae12179fdb43fa0f4e0850ff73367db589f34ce. 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/SEAMA1000579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab730c4e824f5f9dc7bb94cd9366740b99c69970111791b0bfced8224841b94. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/SEPQM1100031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54364305438cb07dfe847be0e6af8fa257b865a5251a2c806a6d7d141f15e9c5. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/SEPQM1100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5126257bf75aadc10d1a1602fb075de86f345abd0f508a242a499fd3aaddee0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SEAMA0600171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5838560fe383ecae48570e75bff24d77447be5d4f29ac1413b44ffe9607e2958. 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/SEAMA1000720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271ddb1f48e4cbf24972d23af059f04e08685cf1563752cbceb005af1344c52e. 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/SEAMA1000721.
Jag undrar vem du leker med ikväll (I Wonder in Who's Arms)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288776450338c63250dc037a26bfd74b0d834ac0c4dbc9a840a2b5c2c7ca7a99. 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/SEAMA1000722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b298573cd87332e86029a1771860359e60e5ebf9a7cd693b67df5cafc44438. 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/SEAMA1000725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192bdfedf10ecfc49eb2038aba87b4d2b2c77580121a233dcfe7a51b78967cbe. 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/SEAMA1000726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0a2562aa5aed1f4f0fd7bf12d714d8062b512f0bfd1097643e60aca0461a0e. 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/SEAMA1000727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89cc7c380ed53cb2a27afa57b30adcabc5e7f2028448284311dcfa6bfa24fbe9. 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/SEAMA1000728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1192c3d64e59987592d3846da1fa408a3cefdf1d672a02730955e72ff3125924. 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/SEAMA1000731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fef4e5864793589f1be9f5df270431177fc70b883125cbb125152866e767263. 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/SEAMA1000732.