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 0x6e91122da8cee4d1c5b306df18a6938159a13100b157f8f4c098f7db6aff0191. 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/bc55969d-64c0-4fac-822f-bc89b80bc3b9.json and https://artists.proofprofile.net/proofs/artist/bc55969d-64c0-4fac-822f-bc89b80bc3b9.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 0xa1b0335d86e94a244bb97fab82aaca17bd228d3b93df2fca4780a7b7739a11b9. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:43:38Z), 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/BGA261579224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632943e97dac22f998e1e5d0253446f57ab082f7c18c406592d2fbc049f3af1f. 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/BAA052113123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce5e379f0ac37e0eaa7d9485dd5cf3ce1a5cc916ead2f351688d939698fc210. 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/BAA052113124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e18bb47fd3f372cf5ae8877481fced8571233b2e83f3adf6cc51ea087756c8. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ATR981230817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e26bdfe2a6452b356e26da11db5a9d0b6b40e56f9d219dc28a7cb33831d995. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/RSA181340834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649437ab289a329369a5e9aea3c59a0b0896f34b4c4ff59999bedcde069aa7d3. 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/RSA181341088.
Medley: Ajde Bre / Koraci / Legalan (Acoustic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe079c4dc15c3f5fec48580d3542ed13506f59deb25721d82d09ab290e965bc6. 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/FRX282270065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bae0d0239fab2f6714311184c048dee0d83b27b32c051b0d48ef3825fca6ac5. 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/RSA042300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27af0ba9dc17ffb7bb10765e7e20987c80d05dd4c0832835f44eab84dd2b0655. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FRX452360579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8c495eeeefafe980a4aaf65c77ba6a57f5633ca4f8e6107e0a59ee0dfb7280. 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/DGA062330854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397d265d577d2d18fcb2b5def3d1b7f3aba1e95c3f4fa55cd2ffa2826789f848. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/DGA062330859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802dcff4253c3029fc9966f887f9826e80e22713ace3637a1e92a0ab1fbbc95b. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/DGA062332593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a44e1b4cbc98a84505cbe840e75844f2c6541310cf28669cfa936955214ac1. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:07:54Z), 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/FRX452474001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1289bc50c9c7df1b8fd527bdbc1c5367c14e62161c2be216d6a8b8080ff9d8c. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/DGA092442510.
LOCO LOCO - Eurovision 2021 - Serbia / Karaoke Version
Eurovision Song Contest Rotterdam 2021 (Karaoke Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5ad03b95663e1dd4a5d60cda04ed97e9d1ad96413ddb0f8ad46a5295254809. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/RSA042100003.
Hasta La Vista - Eurovision 2020 / Serbia / Karaoke Version
Eurovision 2020 - A Tribute To The Artists And Songs - Featuring The Songs From All 41 Countries (Karaoke Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f1ec359e5f538a82fa098f48f4c4a1edb49c32514e584abc017b3c7bbac647. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/RSA042000235.