The Roop (stylised in all caps) are a Lithuanian pop rock band from Vilnius. Formed in 2014, the group consists of lead vocalist Vaidotas Valiukevičius, percussionist Robertas Baranauskas and guitaris
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 0x6542a89ea4ec2398477ac7b9e543c0d2177823096d7ed9d6bb732f7c8dd3f706. 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/672be190-6e4a-49d5-a0c1-82fe44c491e9.json and https://artists.proofprofile.net/proofs/artist/672be190-6e4a-49d5-a0c1-82fe44c491e9.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 0xb79aa984b331db811af1b3dab10610de34a4711b8915e1f92b2511fa594b6cd8. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/QMPKX1746097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4becdddd463dd73213d4996e5938ca0cb1c339cb02055145583cb3ec67789b64. 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/QZ9Y21733917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124811a50ae0f5711614c17e13abc3ca6b6ca72fff02c870117c7263a9139819. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZAPG1887450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39daf86df22ea2bddc6c9687a292b09aebba113e1c1202c6f2c31cecec18b2ce. 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/QZB4J1880773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40194a693d2ad7596a4f77452797be890b81104dd9777a18ec2acf61a3c4862. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZK6J2071503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd743992b6a92f5246a366af17477dec122d59783f1c77008debaec3ce25ce517. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FIWMA2100113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3d2e0ca166013857d1fa2ef0636f03a14471f9313d833cfee5c1b53dc3c9e0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FIWMA2100303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385cc2c76016d6641ebdfb11f9b50d789eb1098a9c22010412c96e8f8bc789dd. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/FIWMA2200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58818d18cc3791ffdeb84b07a1b4b637101bec93f4ab74e093c70e80001c813. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/FIWMA2200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c15b4138e251c8513b7247e204d27b7af9b72a2e19ab7e9215bafcc2e24e53. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/FIWMA2200109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093e985fe6ba9ec34372ca2661356faa2231030b0cb370520548a429b3b4a6b3. 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/QZMEQ2546440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9ac3dd8a15cbfe06b597de0ffb0070c60378fce2e5c64f301e800a39830dd9. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZMEN2503325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe057aa0cb3d56437bf84e5eb6cee425a1934dccd777119309e96397d858ab4e5. 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/QZMEQ2546441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd8354b64fa3679738e7722e511f24fd6e58ba615bd5e79948b742c3a6b4572. 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/QZFZ42473813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567e52f06f82212efc825bfbe1f47e52be021849fc23f7019854b110b6d87737. 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/QZMEQ2546442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9628f01a3c0948d2cbc5819b54024c82899f06c47fd88e3f977da24892559c4. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/QZMEQ2546443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233c8a6a13609f3ade0be6e5e241941ff78bf050de73d6a3aad44bb571399cb8. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:08:05Z), 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/QZMEQ2546444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424acf643a940e9c1ed17b19d3cbfbe0f59f00a3c735ebaacfdbf81dde0aa62e. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZMEQ2546446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233c8a6a13609f3ade0be6e5e241941ff78bf050de73d6a3aad44bb571399cb8. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZMEQ2546444.