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 0x5f940931d7ab1ac8ed6882589510f24085898b79a89062bc080c7e8040a397ca. 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/d076f695-ffce-4b9f-a03c-2f6d2e3bcbf9.json and https://artists.proofprofile.net/proofs/artist/d076f695-ffce-4b9f-a03c-2f6d2e3bcbf9.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 0x541b4d81b257d02aedd89a224df0ff5453c5efa1ff89d2583fdd8c51708c830d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEU672301166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd637b8fbcc6bf33e146dc8b873e3a6026b1e0318e7de5067219244e00105925d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEU672301168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5507de112f76ee306607e1b1cc4dbf40cbec1b1b616eb4ec2111dcb5efa7f4ca. 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/DEU672301169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcce223c87c717adfae7cc0f12de1c8a85dd1bb92c5cdca3cf4d7ccb183780d9. 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/DEU672301170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1bcd3e88e3266e15e1f4cf36acf7dc5b3f126ac83d8941e6602721eaeb4ebc. 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/QM6MZ2433093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed54e098a726d1da83cfcd9853408979f1c43bb3d8e94588b9e21fc29f0cfe0. 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/QM6MZ2433094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1bcd3e88e3266e15e1f4cf36acf7dc5b3f126ac83d8941e6602721eaeb4ebc. 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/QM6MZ2433093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac1befc7c5d0d3fcd698c7b27ce00645f099c6cf1c30a5531c8f13e3663b761. 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/DEG932304668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc478a4161887cd447384a2e155b8c58c8a5ca76e35404337fc2b9642d907557e. 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/DEG932304667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5031419f75914fa7f6fd99a210e6f78973774658bf618c0b28a913ae8ecabd5. 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/DEG932304666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac1befc7c5d0d3fcd698c7b27ce00645f099c6cf1c30a5531c8f13e3663b761. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEG932304668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9465ed3ecb50227e4951102af72cb86cb4818e9830bb86d8db7fdf48b4450f8. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QMDA72383368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d88f51fd62084f498a250a06429ed1b75843d9d0062f2a8e10e2d6a5fe3e680. 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/QMDA72383393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9465ed3ecb50227e4951102af72cb86cb4818e9830bb86d8db7fdf48b4450f8. 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/QMDA72383368.
Lazy Days (feat. Emma-Jean Thackray) [Wallace Dub]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8767f8dcea1b6da3f4004eb9533623675cb53c554a8252d2387831ec3c8203a2. 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/DEG932300114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8767f8dcea1b6da3f4004eb9533623675cb53c554a8252d2387831ec3c8203a2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEG932300114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889dee919ede2a242bfa29e1ab59e23afea105591af655d64ede8f7d317067e9. 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/ZZOPM2236031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dabb8546588d0de2534ca33857487a9ac4b1cb950e9dece3e55d5fe199d3ca9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SE2WJ2208002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9204878a771cb9500e38f4609a625a3dede5ef2b3340592bd3287219db80914d. 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/SE2WJ2208004.