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 0xefe6583713f200ee6baa04edc417864004996acee735ad7f0ae976c4a4b4b4ec. 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/bc6d75ff-b084-42e0-b8af-b2b14fb76eec.json and https://artists.proofprofile.net/proofs/artist/bc6d75ff-b084-42e0-b8af-b2b14fb76eec.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 0xa15473c46fe358847bfa70bddc64555911fce7f53a86ded2684a4eccf98450cf. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T19:19:12Z), 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/HRA041374846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5906f864f199393e030c1a9abdfec64f32a3ba6f0655e01a0f6a880eabfaabc3. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T22:42:09Z), 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/HRA041266513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f33e59c0a4bde3bed3b6ca63f0f3e9f1a206c14dfe760fab67d01fa238c9f6. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/HRA041268054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde663793c92a419b44a710d52274e5576ae57837cd66fc6326fb7b302ffe4d6. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:20:47Z), 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/HRA041685876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0adb0778fcfb3a58218b5874dada5090f1aba8500135e9a2a63806686728ae47. 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/HRA041480707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42faf53ab7cfed8eb7360d82de84f2c11005848818e53082092461ddb9e1c09f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/HRA041684341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdbbe32cbc9ac456d51489cbd26875b0a85ae0f35a64db90cd0a0ccf6b0b081. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:34:11Z), 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/HRA041685878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e19d5af9a41c9f79f80a418f0962eb824dd9e2422679cf3f56a89887dc5b41. 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/HRA041581613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8fffd989f87c9b5993412dd280ce354d626d9575e86618638feeb64ce60b2e8. 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/HRA041991861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ce88666de12dbbbb630fc6bea3d643edbc0dbb82a06be0aba3c882252aa302. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:57:32Z), 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/HRA042093228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e646263bcc9aa257ebc6b687fa18a912de798b2e9d1008957ac1423f84f00d7. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:37:33Z), 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/HRA042093232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccaf09ea7058a038644639019fbcb7257d0de8b7388fbe0834e2bd140ba465ca. 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/HRA041991267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3a072d0a3ebf4965281d4c1f9d1dabfc2909b3fa4fa36a7faac431da74fa7a. 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/HRA042093233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31abb9b19c5d1a5b31717da6f1d1e3159949e2373ec6b5dcf3e74742898d5d7. 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/HRA042300552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28c7a6d14c27797183a8e0d79757bec435a5a04be06b0bb3322fb5ed1fc53b7. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:56:34Z), 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/HRA042391258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed75333cd1380eb345f3323f3455dd0678d5d486da3986bc1cc8f90ea7a4703a. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/HRA042401385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9e83597e9e0f32a75acf360b347ccf2a3b0a8ca4e09cc5face84b1572592c3. 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/HRA041685308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2a3828606be1180d813548d7393cda52eadbdd1fdb46ccb5d11ff43b03e612. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/HRA041787889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdbbe32cbc9ac456d51489cbd26875b0a85ae0f35a64db90cd0a0ccf6b0b081. 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/HRA041685878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0adb0778fcfb3a58218b5874dada5090f1aba8500135e9a2a63806686728ae47. 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/HRA041480707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1daa8094f723e6ea18741e002f0a1cf1648c771dbfd75272c144d6ca6c9e2999. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HRA041888524.
40 Velikih Hitova: Ljubav Postoji Zbog Nas - Najljepši Dueti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9e83597e9e0f32a75acf360b347ccf2a3b0a8ca4e09cc5face84b1572592c3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HRA041685308.