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 0x193acc0776cc87b7bd65a83dd644c4a8f5b9937b27bf7b7adeaf416199f60949. 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/bc635ea1-d2bc-4514-811e-157b83a72151.json and https://artists.proofprofile.net/proofs/artist/bc635ea1-d2bc-4514-811e-157b83a72151.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 0xb6debde79097eddfca808ff31a80d5d8868d858095800403af25484e2df56271. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DELV41301014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba32010394052648da3552a74189ebd36d8de56b0ffbecaf0ecb1023dfd871f5. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:36:08Z), 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/DELV41301015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda88d1ef921d1c72e2bfab842b482e2e445b05388bf008b24e77173930fc575. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:19:57Z), 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/DELV41301018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeef5ace485e1f0d26303559eb7c55e265a6c4fcf63377a059c8c7304d5c8562. 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/DELV41301019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e88af1d16539c7107a2778bfb02d09e06047e75765f93de0c1d8f37e1820c9. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/DELV41301022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc90ff89214a5cea0b7033610bd01794d2e5ddf6dc0c98ee73a6f615ad23f92. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:45:45Z), 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/DELV41301026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a97df32c2e944e64fc3c06fbdaef3699059ab75e3dd5cbf2a5511685f3c831a. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/DELV41501134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0b956a913a90303a8eef5c8d117cf7f3a46d5da24d8996f038138eb083fe8d. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/DELV41501135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf959aeb703bfb86efbfe0e5417b4135d3efbc05975c33112c641a3af60cfb92c. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:54:52Z), 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/DELV41501136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb44b4ca73b221d29049813de6cf774b14af022217b2c3dad8bb3af5d8a8c49. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:38:02Z), 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/DEVY82500119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f574e2468bb6ddc44e7a108536a9b5e2f2a86efff44ae1867ea4288459ebdf6. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T03:58:53Z), 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/DEVY82500120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1876789fadd5ef93b7bcb3709fd126fd4c24341c759291fa7737c58dd191f805. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/DEVY82500122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1fe7e3415a74caed299436de15aabb2a0091a215ff87d7e8add30b65705c2b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEVY82500123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd58f505af0232ce0eca288865b476bdc62671c2e670b39fbe967faf5f28c2b9. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/DEVY82500124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84872a78ef48002d645f6321ed9d39f742b660d6a68a9003d2bd47b686650fef. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:28:03Z), 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/DEVY82500125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25bbec30e483285392b4a07d43d21c47d5d84e16472fdd9830d6e7fbdaead7d. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DEVY82500126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44540ca07b47ce84cfc7c27bc61185e865f9c5116e208efc6d3e0801ae9b43d. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/DEVY82500127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a11d4b067cf9b26ca9987cc99c1f03eb9fef5fe0ac86c1fbc71df886ddf1c2a. 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/DEVY82500128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf753dcad96d6f5af3979cb23caaa091807521f823ba622c0b0f9ee8f2e28c4b. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/DEVY82500131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e0576de72704fc9dc13744f0a14bc413873de42c05f944500f4316139e00e6. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/DEVY82500132.
Battleboi Basti Vs. Sorgenkind (RR Halbfinale)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd56e71919e4f30a8962f6f5fb9da62158814d082c62fcd3adef0b1e3663865. 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/DELJ81753766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f56a3d366c0833cf6ca25dbc0a4c64b0653ba30463dfa7d45e4eed9d1048d9c. 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/DELJ81753757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa173dab77dfb7b8eba29beeaee691ce2a4972682fbb45640113765ee56e46485. 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/DELJ81753760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce8b175dd3275a1deb71239a1af67a3c75f1262b5504a053cf92f27fd535605. 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/DELJ81753777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8293eaa24f4f8e68de8719a224792dcc65d7195df6d0c416a59ef7592ccabd. 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/DELJ81753768.
Battleboi Basti Vs. Sorgenkind (HR Halbfinale)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5ac23a7f8ec4587d00303d444017f7fceb3e7c0968be9ddb4fbf1ac2510d81. 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/DELJ81753767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c87b3f85f26f92ec7ef34e27e7cd0da3c0c708ea3a920e35f7fc4f3581807e7. 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/DELJ81753786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb331af45c7b51c559017ebe76e045c9cd3ccf7d7279630476d682b87724c57cf. 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/FRX871573175.