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 0x55fefc58b01d00b34ea7eddc89ffacde0b318e0692bab8bd83de7ce3cbc79a9a. Chain 2 (Bitcoin): anchored in block 953709 (2026-06-14T23:31:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d31324c-efe9-4158-a741-8bcabd08d736.json and https://artists.proofprofile.net/proofs/artist/7d31324c-efe9-4158-a741-8bcabd08d736.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nima Splita Do Splita - 50 God. Splitskog Festivala
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 0x4c1dc99970a6234867acae66bb4ac478b115b7ec3b319668ad4382f30040c00b. 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/HRA047566451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697ec25f68a822d5f20ef343ace33ba8ab82449461201f7764e3e5700461b330. 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/HRA047345084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcb6bd7cea4462763a93fd3a364cb54b870434409fc4e840d7367e0c58ff811. 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/HRA047043237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87dac5f95ce38a1bce5ea9cd265f2ff3833371223cc2a71bc1aec83a4a59a039. 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/HRA040627344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d29f69f6d0e67b80ef4599f73bc6f5be8b7f5156949100813cda9ba9f8bb896. 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/HRA047166548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d636141ca4b7f2d2dfe366572f6cd457ba9037050d24db6c5f505e7c13994e6. 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/HRA047015118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74737827d80a3866d570631e57fe31842947d429c9cfca0ea82d8e2f27e1a8b5. 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/HRA047226362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64214a151bbe64227f1ebc6d731bffddedebb400cb1237206bcf8a4474b82e42. 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/HRA047129310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d594acce8a691693f3113ad1a813a06bb096a10d7a061809090ae9ce098fc8. 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/HRA047313271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e34b5bcb3e5717c151d58f6ea265944a985841fe4d623899f7d2790f7f28a4. 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/HRA047108817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceab22bbd87cd74d4fa37b312c4c4121f137acb2d937c5fad3d43e330290ddd1. 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/HRA047126363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc504717461042db81da24579f28bc1c5548a0840c209205457d3aed847d31d50. 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/HRA040858589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04df2e84deb26c17150a4ceb13359194746da8c7e1a1b7958060bbbc28d62a3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/HRA040647985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ebd9bc4b2546bf82dc28b3f89a9aededaa0b9ce92e09b6119ee017b0f7cb72. 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/HRA049440861.
100 Originalnih Pjesama - Đorđe Novković
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba20cc970755c578f5e64c6facd491a25ac9a3ffb5e1c25817c588767e6d420c. 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/HRA047451724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3789a1bcb61ff3590e8b1f433ed8ae1739220e6367e6048dd45d6627c2fc2e93. 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/HRA047551857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8888a0a64e08f4b05061cba6604111863c6f212d3ca2a18a91afa1ff97ca7b6. 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/HRA047551858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1f33807aa7d3e033d05c070dcb3adf555a145158b5dbaa26165b73d449fe04. 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/HRA047351711.
Takav Je Život, Izvorne Snimke 1969.-1977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5af8fc648bf548e67c238a0d571ed09ce509fb85ef1a04c288ed51287dd033. 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/HRA047743244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fb07db9e571ab55a21f51fab03bafe452baffeed8a79e0e755cb609f633fb1. 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/HRA040643239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcb6bd7cea4462763a93fd3a364cb54b870434409fc4e840d7367e0c58ff811. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/HRA047043237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e46f6a5bd77d5ba11106e1887b84b2b701cb46f3b319bda2f62d96a5218a583. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HRA040643243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b1d50a74e0e73214b0b498679edae6212419644434122ad37ac19302ef5660. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/HRA040753655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc69f4c3d161912f3419e067c9c9e221e00c277cbfdf4296f70ddfb21e8d7223. 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/HRA040753255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a919398b28173afff3e46eb3e38f8bb5a7e41efcebbe2a015ac6965bf7b0ee. 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/HRA040643246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114586ccb593e835e0dcf2e89f660251e19027c76ccda87cc2fdcbd28d98d34c. 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/HRA040751195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ecf0c7b7753cc9b733bef0bec7fd40130c7c8cd3f8ef0c76b709307926de2d. 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/HRA040753349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93f3ce27811b8965e800afc2806c34ed7b8b191a6ef8fb2f63bc924f0a6e064. 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/HRA040753256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0630d8ff0de3d74de34e7266913f2664ca279a580d1de817b4067746d3f4679. 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/HRA040643236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969d62f6931ea8c9fff45ab24892984ab1a4bb38319a52d51830715c4a9fef71. 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/HRA040753493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848f88765ab4faffce8cb267da3bf26f44832f405dcce1069957136bfb29d6b8. 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/HRA040643242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd0178f28f7d3b20e34c50f5a9f7ea231346fcae8ca7d8f767f533e57761b08. Chain 2 (Bitcoin): anchored in block 957246 (2026-07-09T01:49:50Z), 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/HRA040857672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44759749d3a0dd826a700d694accd564e564ebe97cce0c906616c2a62b0e6115. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/HRA040960073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3a17db97700740066a8ec9327e46dae1c6d45971454f6b55c96555d2b55be1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/HRA040960076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f29f6d7c8f66d67b8b130995004988f8d6d8b7cf767a48e54a6ab46ee7ca13. 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/HRA047753764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa726d6aff1ee9dc85072eba076ee1ad1a745eb292e541e3c41ae6797e3da7707. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HRA047845077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab431515fab1676a30c304c7344930a501782561b8e32b7bf5eb8d99fa5f857. 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/HRA047853887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896636a1fee3fc41b107b2cb63ec220ced1008ec5dbd93e36f8089eafd03bffb. 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/HRA047353291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18e1e9a379a46c8187d200dfc758b31000f6a628e158d20cddad9547db5da40. 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/HRA047053106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2c4ad5cf832d476708d511b590ff0f21c05cb1e7dc17c890861b253986fa95. 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/HRA047475119.
Xi Internacionalni Festival Zabavne Muzike Split 71