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 0xfc5f1b4c2a13cd949b5c7af8e40e38cb839a1b4ac9a708d56591a93ef8104194. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b04a54b9-d9b6-48ad-a8fd-8df3c8cb8293.json and https://artists.proofprofile.net/proofs/artist/b04a54b9-d9b6-48ad-a8fd-8df3c8cb8293.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 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 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 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 0x560c8b3e962388deaac0151a15b854bb2a0a0d013367049ea6ad95c599046c1f. 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/HRA041266383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b1c9c63d4a55655cfed89c42c4729cfb54c2eb90bb74b6ee79719f1cd2124b. 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/HRA040546439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e08a52d454fd44f839a34b0f499838cb7f3d9de81ca503ac740181fa85dad6. 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/HRA040546451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd44b8002b2b231dbf281860b51811268ef7f2470a573dc63ed3572de39d1637. 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/HRA040546465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed43a87b6e965a46c3e800c9722f82525667b16486e5d1a83e4f6c3b38206ad. 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/HRA110921401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6342f3c95c845fd3704c4ecf2e925802681e745365b0c18c703de951f6766f6. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/HRA110921402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f1bf8446734292f1ff5f804a2dbb8c68001e5a20fd01d9665bfde50c80477c. 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/HRA110921403.
Škafetin (feat. Ivana Radovnikovic) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9249bdf2c09fe7fa489325b2cbee0f4a4f7d0e97365ab691a07d11ca2ba7b2e1. 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/HRA110921408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b28617bd77b8ffdd97fca5f9ee5d22512660861b668141a297e953dd77455a. 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/HRA110921409.
Divojka Sa Juga (feat. Neno Belan) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b3c1a626e6f04f96aa723eeb68e7dbce52d421ac58c2b1ecda0a399d27e036. 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/HRA110921413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a43055333d91aad027e460c3b42e9fe0eb27209a3b36a32a87f331881773573. 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/HRA110921414.
Zemlja I Stina (feat. Hari Rončević) - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee29187c6e8ac2d7613c20fca956c0a246d226ace93c8f34c195306dfabf9ec. 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/HRA110921418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ef086d18399e72f69fa57fc0bc89757c95a4717c166026941f8a88d83abc92. 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/HRA040344361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304d16219f619e99f7eb8a743fadfb6c0103723bd5dd3649e164e5c4d9093520. 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/HRA040647466.