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 0x7b5ea7195f497ebd0a6277cd158d48d8caea8d3ae9535bcecab933f09751d370. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7548b798-b0f0-4d77-843e-bff4a01306be.json and https://artists.proofprofile.net/proofs/artist/7548b798-b0f0-4d77-843e-bff4a01306be.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Händelser Vid Vatten (Blackwater) [Music from the TV Series]
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 0x40f0db377160db40f7823542704cc635e5f91c4c430b8c4809aaa1b307cf1d26. 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/SEYOK2301888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6cc43a80e0b6e50cdad9231ef4cf856ebfdf38ff1c1ee9fbcf7a524160bc747. 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/SEYOK2301889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0828e31d72781c806a84ccc30e3b2cf7638ca0525f92acaefc39b75ad35e9963. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEYOK2301890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8427dc7474b9932222ef9e9e170844e61ba2cae655e0c18b20e55fdb57c5094. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SEYOK2301891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6ffc1a09711b5bd8572b80d828b6f0ea2206d089e44971dadbed6f5216b8f5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SEYOK2301892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b9ef9301322d0bb1bfbe29ee8fdcaebc4f3ac6d38e41879f63c4b3ffa8e720. 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/SEYOK2301893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84450f3eef15c4f820dadd8b5f9568d18bc6c2f3d6862b9d37390f62d25befa0. 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/SEYOK2301894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd331a1ebc73d5cbab8fca371941cef6bf88ee11b9bb697e55d8358f9e6b8390d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SEYOK2301898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4386b35e0a2efbdbd30f6917fc80f4d0d60bc8bec6a84b0aa9a82391590dd1cc. 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/SEYOK2301902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f823704d5f72a18eb11a162dc94f1dc599d2508c22ac21f1fa19f613c1f9ab. 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/SEYOK2301905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c20a78b28983d1b35c8c7897fd3b7584be6fb9f58e0faaf0ffb6a418b779211. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/SEYOK2301911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0854cac901b0330d672075fbfb25d2e7316e28e55a55cdd8387b9b41b835b114. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/SEYOK2301916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86168e7015092a87d0df070ef44a246e413c5a3bb23ce595bdf7dc6f0f1cdc79. 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/SEYOK2301918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db93d0fc0d3d0222cd1b7737e3dafc40d480e7a542935bde7a0d6e105d39655. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/SEYOK2301895.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4b7bf3726bd8c5dc3e01d980cdfc177e76fb4a70619494bf7ecd0bf0583477. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/SEYOK2301896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9c03be65fed8bd9aaf7de8b50d52748d58ebd99148e0df3c557648c8a36cce. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SEYOK1801535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c52b0b66ce40862c350502047e87a2f8a0bf4ab6c0b4d4cb334ecd25c5d1ff. 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/SEYOK1801536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3615d7bb3800871da4a3881c5ff46432d5c869e2e9ad3d0edcdcf72336eef1e. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/SEYOK1801534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca9e516a7191a93576941ba184307aab7dff8db0f65c0be77ea01c16cfd75f8. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/SEYOK1801537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637936a71ef90a1b6d5a1cb45e6ebd9dff6709cc55c2b97caac8c3181cfdb549. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/SEYOK1801539.