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 0xf79fa4bb2312573e80f508e456ad836432a28739a92787f9b7d66e07bcbb1f61. 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/4f244f39-2af6-4e09-aa49-8d56470e493a.json and https://artists.proofprofile.net/proofs/artist/4f244f39-2af6-4e09-aa49-8d56470e493a.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 0x55ffecc04d0b78adfaa665f0e04a048bc2534c7b0d55dbb0e570906e4ed02b55. 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/QZ4JJ1793851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e80979368e260a57e009c8b9802d5a44925a3ac6f149e9d63497e2291784f7b. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:47:02Z), 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/QZ9JZ1715427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e79cdcd777a5960662ac406ac1880c671e74cd28e9eb120b98cb39148485e2. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZ9JZ1715432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde58217e59f7b8271e9c0ced9f59a417ed03a6dbfc7ea69c69cb787ad5750378. 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/QZ9JZ1715433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa265ca3c58b73d595b9e26dc82c84d8f67844a7388508c3dbc6aa42d81f6b46c. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/QZ9JZ1715434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee69832451dfbde95e541f0ef7fb5752ddd481fdb121b1cb3811a879680550fd. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DKADG1800160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284e60c3a33f7d13f690ff9dfd63bac94ea0adbebaaf44506eb0fa8f10df3f40. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DKADG1800164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9172a5ff222acb2bde8ecaee70495ad34c829850667ed782a4a2630091dc499. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/DKADG1800165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b03ce74e9bd75aba718bba56a4c4654caeef1167a22779f5a805e5e5589fdd. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DKADG1800167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9280797965e3b0314315066044fb7fa709249368877ec997fc1d6e8d3dcd94. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DKADG1800170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18bdb59b862ce035cfc3b2585c0cfc211828f48dec8754330240e967a83221cd. 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/DKADG1800171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8a9ea247b55d89e8e6b3849ecae9e511ddf808677c271f2a89d1bf236f42be. 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/DKADG1800539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0720e13e7d1219d2371f0d8fcc5b3e4667376abb978034a2d42c7dcdf4b363b3. 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/DKADG1800540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec7ff97173998c53e4ed3086670149b3a812cf8849874dfdf3bb85924b22a5e. 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/DKADG1800542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5fe9726f7a7fb50e31535510e71c6665d46181a99fbecb9ff0cc16c9bdacfd. 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/DKADG1800544.
Sá hana fyrst - Gula Kaffihúsið, Reykjavík 2016
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10230a7c9bbb8b5ac0b5b5eef1bfc1150f20055f064165f082e687059c7857c2. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBKPL2093482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5255dfe9cb9d05e607a7da07337418221970c482ad227474348f0e9e4afa47. 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/GBKPL2093489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24938e10532d11262f491014b9bf82eff6cbd38b9a893050980c3585ea9014b. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:21:34Z), 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/GBKPL2093494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e3e0d7842f177bb4f1ee77eb5ebd977a0e780df5e3bb890244c4283ee63f8d. Chain 2 (Bitcoin): anchored in block 957830 (2026-07-13T09:15:55Z), 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/GBKPL2093497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e98a4935e7864bab51a4127318956f313f0b0cf136c4b093401b7768c750580. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:22:36Z), 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/GBKPL2093499.
Í fyrsta skiptið sem eg sá hana - Á Flugvellinum, Fyrir Vestan 2019
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46dbb33ce1c963462b6d4213996ebe1dece0c2fd85397ec6efdfb2375df2a343. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/GBKPL2093500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39cc197c70c24c06b47a5104017a49bee812fbdffd423f18cd1a1eaedd29358c. 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/DKADG2200173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270415f9f35179ba0da5587f15181be91a3c37a337c58173fc4e7039a38dbcfb. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DKADG2200837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd456e66d7f10515514bac0f28bd684fcb7522c646894e00107a9b476fb91b2. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/DKADG2200838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e7f60319e052d5ce3b9602c9d33a5f00ec97dae0a4a929d01a88f88dd878d9. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/DKADG2200843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961c65368a477ff951ebe07c5e4216476ba946a06434c9e31ec2c0dcc9033170. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DKADG2200316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe70b2fce787dd98355704d396dc5f2c87ff01db85eb8f71f06ca7e10eac8ba8. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:42:25Z), 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/DKADG2200844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6128f32cf78884ebde66b955087e98fcadeb2d0d7262f55a87b714e4e7dc75ba. 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/QM4TX2446141.