Backstreet Girls are a Norwegian rock band formed in 1984. The band's current lineup consists of vocalist Roar Leren, guitarist Petter Baarli, bassist Gaute Vaag and drummer Jonas Kjærnsrød. Backstree
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 0x751a6601f30337a8b822190037e2b0958f39d12051fea8aad9e589b227fff800. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd361630-72cc-4c1a-afe5-ec2aa140e126.json and https://artists.proofprofile.net/proofs/artist/bd361630-72cc-4c1a-afe5-ec2aa140e126.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 0x767c5e0dc9737338a1d4c90dbbcd174adf9a0ac6ea2e7e0eafc70272ca838cda. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/NOAMM0020020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3aa3f1b8653d469bf6691eaf8732149897b5a0b923ee38856398a6a8488bab7. 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/NOAMM0020040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c84545f9739c8aed33db10306c573f418310b0c2f500df90f7214efb1b7a9b. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/NOUM71102077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ba09a05f599debf3fd3f15244b125eb2ef4f104e6c5782df281d2c650831d6. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:52:53Z), 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/NOUM71102078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64b0789eec9108cc009efa158a3a7021cbd634f4953bd15219b772cd783cf70. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:28:34Z), 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/NOAMM0020050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8196eac86111997ea861092e7ec4b76ea9307d2b9ec8b6da5d5e0dc49418d191. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/NOUM70701499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ebbabcbd6277f77df17dd1eb23fa0953d82b8c273922aa1b3ad727986a59f60. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/NOUM70701501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd778b4d71e9d2be99876416fde52029d598d53dba530206fc84d416383ff8f4. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/NOUM70701502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf032721a08dd2ad5a5da0b37ee9a3b6141b54f1f0a9578a0c20a42d4faed1b. Chain 2 (Bitcoin): anchored in block 957642 (2026-07-12T02:46:48Z), 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/NOAMM0020110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa76dcd887280b5537f985addbfb6b942b11de32b79666716a13fd69bb52477. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/NOUM70701503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5cc35c97ecf0e0c23e9543277e01a37eb1cdf50fe93fb9b1ace9001dcde22de. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/NOAMM0020080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83daaa1b9c5562dc5fa5b8d2a990c3bdb1b13a3c8a93f50b820acce8a652a9f0. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/NOUM70701505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b288c20d4509d387ee7926a8de0fc94df5cb0f29ce56238a41a491d575ab795. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/NOAMM0020120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8bf80dae53391d7e05993ae08e170f5ff95d4d906daecbb08b1be88b51ebbe. 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/NOFVF0611432.
Just When You Thought Things Couldn't Get Any Worse...Here's the Backstreet Girls
Just When You Thought Things Couldn't Get Any Worse...Here's The Backstreet Girls
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34408f59498f7610c3ea61ff336d554d064bf70a9ab8c6a326f2bb0f7331aae5. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/NOYDL0101060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53da8a8b1a9af6c199d9289fb19a7b9f3c17874fd653925b1e4b89539eda5eb5. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/NOYDL0301010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44fa458b6dc3784c46e66524adbdb358b954cf53fbdb74d6bf0fd2d20e55ffd8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NOYDL0301020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8ec1689ac8a5407c28bb8fffae69445cb2e7dffeec57843b1dc027ef41fa1c. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:23:13Z), 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/NOYDL0301030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b62969b6d1893cc0d4aa8243bf8f5402d86d3794e42173eebdc84f6691b176. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/NOYDL0301070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ffcbe526bae7de9cfd2ab41a6603a801fa078c9b33b771e903a7685f1ad264. 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/NOYDL0301090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f23420be7effc3508ee7e502aa0298af6f2a5363fb0d24fe3a00e1000985350. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/NOYDL0301100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2bf9f1b0704fc5c474c4216c9a29355af46fc00c5a95944a349d769e0ca7d9. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/NOAPI0927069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642cee17867fcf38331495baaf2062064b2a3dcc533616f50225507385de3b37. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/NOFVV1486030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fdb048449397b1ed48c1dd8c0906295b2bab4ba4939b08711712810574202a. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:53:18Z), 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/NOFVV1486070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8546c47d0d7dbce3f3073c210a96d3cbbe7acb4da3c5418e65e86389b7ce38b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NOFVV1729020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45a3d9fd930b20138da0a1ce361b79cce48c3fc1bed959c20c3c3ca7996c033. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:09:20Z), 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/NOFVV1729030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285e3b74dbf8d7c4cff80f29d9a3b30de09c38f31f8755bcd8d5dbf352b505ce. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/NOFVV1729080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e17752e14df910922bcddfb3f0453ad5fcc19f8b8a9691467bbcc7ee4d8a7d. 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/NOFVV1943020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a620a0492e905a9009bb40d5c7cf50a65a137de16451f2e5578b85bf6d12a6. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/NOFVV1943040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896d032e0a5ca001fc504beff8b0cf05fd4b75cc52c14507da402ce9838d39af. 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/NOFVV1943010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441d3b749422d1186d797018a05356cdb438387fad7094fb828c224d2827faa8. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:37:57Z), 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/NOFVV1943060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7de2c1f16c462d240b933eba4bb9997ef4cff60ee6eff7fca43d262486c5d85. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:46:20Z), 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/NOFVV1943120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57b1349a017bde16eae1c85ae28759d33e06cbae381c01b5eba3ae950d3e56e. 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/NOFVV2377010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0375b3e929b81f3b94ea887172816eef1ce926757dd889b0990a238068d487d4. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/NOFVV2377020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5483c4caba58007db035808d5da94df168e61af27303640dd75d73777aff64b1. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/NOFVV2377030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f684951d93a774a1549066ad3c9e5444bdc98f235cbc33c264fa93d268c023a. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/NOFVV2277010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfd8a66c0702e01dcd4ecdfed5eb625595b82cbfad782c44544f89b232ee40f. 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/NOFVV2377050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194872ea603d75f580e9f4a9c865226ea6484dd0832eb67d2c778ddf6dc45935. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/NOFVV2377090.