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 0x3b9e3c9732157cca3d430674e1e403fd3765bd95c31284cf60d58ad1be584ba8. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/98f304d2-00b3-4946-a1df-46fbee92c9d6.json and https://artists.proofprofile.net/proofs/artist/98f304d2-00b3-4946-a1df-46fbee92c9d6.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 0x7770b474ce81d9869c2dc32d1899daae536145392e7b4a44d456338690861af1. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T22:08:00Z), 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/KRA382500383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0462d4ba44965cd912a68e635288876d55be6bff678470462643b96acd0414c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/KRA382500384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63da39fe7e51164154ff6c4d955d6374cde31780a445c181ed14d032bde54bf. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/KRA382500386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4f58c3504a20c693cc8bd8fbda4d5d5913caf782419d06af1105cc54fbf0af. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/KRA382500387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc765997dba288809d0d84fd2077419b2e8545298a4625e8aeb2f4cae421586. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/KRA382500388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620bcd59407ac700de14f642fa646a964cc323993ab1b20d6389d1a0de622c9b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/KRA382500389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49eb4a3a6c8c4160cc64579bba66b48ca1c88e438728d0d4d19d3cdef6c1033. 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/KRA382500390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60da5c7cfe46e445595384d98b8dafc8d0891f43f4accca37f6967d0e2cb7a90. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:23:14Z), 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/KRA382500391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf38b1f26bdc9c253ab344e47c320eb49200df87930dcb1b7334873530fa13c1. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/KRA382500392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9847f639c9b3582b3163df3057f8d7a43dcf86e34938f484db50a7af88395b73. 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/KRA382500393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2219916dcaa7d443686736b47f40d705715963f624b1a8d2f480a3a70a81645b. 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/KRA382500394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4337b3bbc3e51d2a878e603587e4a07914314b83095caa971b06bbc165978f5e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/KRA382500395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51c2a5de6c4528bb12e790636dbce036dc63ac1a0441c7d9cca183ab4589172. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/KRA382500396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621c0bdc35bd10833b943a7a39ebdc89720ffeaf562d6f5483bdff0a8b5a1efe. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/KRA382500397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77c653b6233bc926b8611b6fd07c51dceb54285f87a3babc2673223cc305654. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/KRA382500399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236811d279e8ecb7e9608f259e256a0b79998047e20b4a29c13babf6ec9e1b07. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/KRA382500400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff8eeb18a037b23b58e13f18ef291a8f2e31967ff2505e52d88987ef5019c22. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/KRA382500401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a61e3c36aa7b86738af08aebfa89204902f7d26c986242582afa7cb72caf67. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:35:21Z), 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/KRA382500402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2b914226fd4647a755fdb4e5dac7e3f21c03e3afdfccbcdac31080dd2f12f4. 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/KRA382500403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64ffa523373c7919f16827b3937e7b440e26e442816969d9e2e96a8cb8d1192. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/KRA382500404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8f33872af7ed006ce94cb49181fe99c90208b2d60f8afbfe393ef2d35aea55. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/KRA382500405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x272a1b31a217e92490e540e1eecbac479ada35446576b82e1aef2e6ef0791b08. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/KRA382500406.