1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x10e07bdf9a8d2b6050158ed4ef24616e0ec47f3c71051daff6e62105d35e4601. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44ef5127-025c-480d-9e50-9c24721601e9.json and https://artists.proofprofile.net/proofs/artist/44ef5127-025c-480d-9e50-9c24721601e9.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 → block OTSBitcoinBlock must exist at that height 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 0xcbc23e1d9c6a587f21e5e08155f48f92edfe38468cfa379e4cc5b6bc8f130266. 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/HRA041267715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1285032564d578267108eaa07f0f95299c346ebbf3a0fa9f6224a9269f8c6817. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/HRA041267716.
9. Dalm. Šansona Šibenik 2006. Večer Novih Skladbi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e3d33ab75fb6b65484de24ba7ff1f0918e6e3d94895a5232a8c29d6b502b4e. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/HRA040648329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f68401a3a681f376aa370d4e881e18d948ed883a207831ece03ebf4b6b7b340. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/HRA041062499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a5580e7705380a00aa011186ead37c4ae245d301e2de9e6363f0faee75f52a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HRA040960491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8962726bec24f95c51351c1912bf00093e9c7501effbcf5b87865cb4bf72deb2. 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/HRA049227543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811e624e525deeee3213a1bf2544a73c1172386231744a72c5de9140421df4b5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HRA040959720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7187e67ebf18eca36f036d9373ccbf2ce2490b41c9742feaa1e36235809ffce3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HRA040547156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9e606cac18fab88da5ff8481dc51b4bf4ad30ce7b7fd54dafa2a88bc5776af. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HRA040636361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec24044feee0572ec8fdf08a906ded96d1c97e2f7baae323c2b8067a34ba2bb8. 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/HRA040749102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee6fda6e36e2aa0bcf8354295607526f2612041b06124a1c78be3413e60c286. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/HRA040648664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3bf8e95d05d8e6335e352e351d8cf682ec61d57be6596c4524ef5876afe4ee. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HRA040547159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a51a2c8d4121b89b40f90b4f431865ce6ad8dd30bb584f33af364ee1a936240. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HRA041062028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd42a835bf0e3258119ec060c13947e276fc3c1d568cc53da3a3291a1ca68540. 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/HRA041062304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc095deba0b456d772e2c271c1d042211e7db7ed60ca7b2c79b571558e5ebdcff. 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/HRA040960794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f097fc8e3e477e3234def124db315c8df64a6348886de63b4220af753448e5. 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/HRA041062684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6d5a18af3d6ed15d50850afd48b601d1c39df8c2e22880d06b1619e8f1e6f8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HRA040648060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1329e303f29feed4786865ed2729053b93cc9576b56ce7ff7bdbdbc6f1eb7c99. 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/HRA040645650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55383e24c6fb157bb94384ea20fb8e79b30c46ec98426ee227f07c5064f1ea4d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HRA782300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024f0528fc12854a9fee85fc32227a5543b1df8591a10c1457dc1b9ce3f34ea5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HRA782200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb87b82b0c13626685b9cb7c0ad243805a389a0f8040efbe6fb5860d34546fe. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HRA782100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee4d838c596559e0d873e178d40ecd8973972e30e493a535ff4cd9ad226279b. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/HRA781900001.
Hej, Badnjak Je … Love Holidays By Saša Lozar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9560853297031da325641de8179c62f055cd00f90ecf692d4f02eac0d382ec19. 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/HRA781610002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb8a585358de7d81cab6efce22221105685d54695bdeab0f0803b5cb27ed33f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HRA781610001.
Runjićeve Večeri 2006 (Ća Je Život Vengo Fantažija)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7142df24507b08c8aea1329b8bb566d030241977355f644c2336e74e8fa032. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HRA100702057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66820c10a28436451f0b45b3dae18ab8a56551e770ed9535b8105659f7a0d15e. 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/HRA100702066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38374d219f37399aa009658f30f4133f0eb6e0bf06900e00e3beb466cc432139. 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/HRA100702062.