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 0xf0ddf0afd11f26c30634280ebd77b01db173939d11247401457e24c6c322a962. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7f2d916-7cdf-4e1f-8ad5-9165aa210584.json and https://artists.proofprofile.net/proofs/artist/f7f2d916-7cdf-4e1f-8ad5-9165aa210584.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 0x0127d90c2ce573a4c89999909bb7ef35d7c30f6c3c2591fc9f143abac1da6908. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/USLZJ1914080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2cefabf4ac8bb02fafd3c0d7e3b2cb5a29da82c4ed104198aca917c2e29f894. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/USLZJ1914099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb965837c2852a8dea45df158b02931f3ac13c7061c9eced303533a27d6c18912. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USLZJ1914572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8d62b5885be829efeea22c9118c0c8243afba9413f7c4971bd739f953a7cf5. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:30:19Z), 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/USLZJ1914573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39697f5b1d9d1e250ecfc5fa56322d5a9dad97b2bd577156216b8d817a07353. 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/USLZJ1914577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fbd07483fe2c56f6bb7d35092c80f6eaf1939638b0e9a273629c9772810eaa2. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:12:18Z), 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/USLZJ2002295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bcf4c34e1ce77fb1b21d999243d07d6db06bf184a92a8d62bd629f04fe16e1c. 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/USLZJ2118748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ef7599a23a971f9f7bfbaf1f25587da749f746e681492dff8640976bbd66bf. 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/USLZJ2118749.
North East Makina Halloween Special (DJ Enemy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a830a0f0daf959a4c780a9020ac603236c8d9022fb12cedf3f0fe5da4d6c5c. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/USLZJ2221900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26fee4ef822037bb9128cd1b75aa27635bf9fc3bdf6cd3baab621ab4f6778aac. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/GBRKQ2262827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0b658f569dfa710b23bba3080e1bd8d14f0c7d4beda2e7e69e4f10fd337c13. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:22:01Z), 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/GBRKQ2262833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b22163b5e72cb18fb69c5faec54a5078aa6e735564da88f468363bb263a5ed. 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/GBRKQ2262838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1cf68f60caa4d0eba18d40e1179c4e648ef35bfdf74aacd9285bb5ad8ab07ec. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/GBRKQ2262843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fec7f8aa91d08d6821a9d7da6ed2c8e890e9f1e8022b929aaff0b9a20c94f2a. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:48:37Z), 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/GBRKQ2262848.
We're Going To Wembley (BBC Radio Newcastle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead5f605f958143a98503898f436cb5507dc6294b5138c2430c112f37738ad00. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:26:00Z), 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/USLZJ2370824.
The Double Vision Finale (17 June 2023) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0361dc346f5e19be916335e42f5c3c96910cfc61d1d44fb7add799192b32cf42. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZTV32303076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb840160933e24ca27fe82ee5c2e4a4bdb7fa27d90196643b6b2af74a8cad69. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:13:15Z), 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/QZWDD2304816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ddeadb339bee8d0c3284849841cb9adb9e4b6d971ccb8e1f6afc2f54d61c8f. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/GBRKQ2416788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f07e0bafb6309a63d709297e104ff8d4d1bb5f4f2bdba1610c32a715dee4a0d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBRKQ2416789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0ff5705dfe554b7bdd62610b0da6c0e86a716e78096f634cf0acc18883923d. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GBRKQ2416790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b05b27b4addc68565f6bbd70ce807fdf74f46e042854c2b89bbbaaec54682b. 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/GBRKQ2416793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5702b80942fea52a72c414fefbeba4d3c03976b2eebbba4d524981321afdad1e. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/GBRKQ2416794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf3d5a977c79e9ff0636af3b6daa18d08a7f371d97428b2ba02612b28eacc61. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/GBRKQ2416796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fcff723848a23413ff58d63449281a813b93849c074f35cd60e79a11251620. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBRKQ2416798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee4b40ea3ddb6797a192aff891116e118e8b36252731c35b25f16e3e1ff550b. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/GBRKQ2416799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824d35a07be8d36592ede1e126fa6f2fc9871a138a071c41c07a5eb9f386c06e. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/GBRKQ2416803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8610a17e86adcb00af80c1e4a4ab165b3c7858a2ff202b9298ec6ebfff1553fb. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:17:22Z), 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/GBRKQ2416806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8aa937510a6868bd87fde4cad49bdd1463e36e3d0d5f49480b6fb8b81743c3. 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/QZTRX2446649.
Initialize Live Lounge Studio Session (Vol 1: DJ Culture)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6255f7043bb14783aa232ef5a9660c73a5880a71a1186ac600f7b35973b8fc42. 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/QZTRX2423702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50fb5924094479e13b045d8477df72164ae3ef2e4462091fd1a07ddc114dbb88. 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/QZTRX2423752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785e98bf3909512b6108c494196d14d9289081b7ca17a7a3bb3fd38749493f10. 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/QZTRX2423771.