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 0xe01bb7e44bc75385d865d8f88646b376662a97c4efdd9142bbef0d416dc78dfe. 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/ecfb190f-5157-49f2-964a-d0ec548f3829.json and https://artists.proofprofile.net/proofs/artist/ecfb190f-5157-49f2-964a-d0ec548f3829.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 0x984e89e68e3679692117845d29895ed37a5ce9306a230f2740d3016dfdb94f7c. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:09:59Z), 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/QZDA72110471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1895f1b849bda64a9218330ea6a8ad239de48b9be23c77ba459f4ce8c7b588ea. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T04:06:36Z), 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/QZK6M2122666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80f57d9b9806048bfa7afc186dee729a6f855de232bd15c4a9a651c2545a3ee. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:27:50Z), 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/CA5KR2250481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc333252bb9b7f014bdbd75cc0b124b31c74543973d28f03d067c1ffd7214103. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZ5FN2377174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1221a8a4b4be8cfaea0810811441eb1170b3b36e5a9daeb203d7d3878a528d9. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:37:04Z), 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/QZ5FN2377175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1efeef1170fd048930906dcee3a06a1981d12ec5e3b201b7939ab39a1033b380. 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/QZ5FN2377176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc90fb08f853aba11972b84be10c6af511043dae045a63e35391d7cc228b6699. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T03:59:56Z), 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/QZK6H2325051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543f338443c7a8073931f8c7a5b7a2f7f21457aabfa9be9b4a7c023eb46be402. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZWFL2372261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5faf61a9eebfc7ce07dded9c587d8d97b89d3243419644216f87dd96524f9062. 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/GBRKQ2403682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8999598756713d8953a613b566fc01f584fc47e3f16f0b8fca28761e5d9c98. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:25:29Z), 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/GBRKQ2403686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5faf61a9eebfc7ce07dded9c587d8d97b89d3243419644216f87dd96524f9062. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/GBRKQ2403682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed0f6f47a5a5d6c8043a9d0c5a67157c104fe73e75af127f177e7d0098fd905. 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/CA5KR2463330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51ee29901b8d14b3bf2d05f267d7b594c31de8bf5edae3cdc90c872a3a0ba89. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:33:57Z), 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/QZWV32419990.
Best of Bassrush: 2021 (Mixed by JEANIE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d630678c10f95b8a0ca4d05bd6994be6d76ebe67366b14bd3a415f7e529cc3. 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/CA5KR0033219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef4b3cbc8c4144a324ef8d0fe9c54a814c9a341d9ea20621277a87269f2a737. 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/CA5KR2271805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67f85e7c5cf7270b78a8181a1bde2c42781c0d46fa747d1df6fd26e7a545a5b. 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/USZXT2455140.