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 0xd23177b042a74c22d9827f422630994d64508c3d845f5b366fdcd0c670690e83. 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/bc31a055-da76-491e-a255-a33550a61759.json and https://artists.proofprofile.net/proofs/artist/bc31a055-da76-491e-a255-a33550a61759.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Her Gün İsyanım Var (By Barbaros Akbulut)
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 0x34558439d2bc858d2343702f5a2048bcb9362f05b572ecd4e21de6f211772f50. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/TR2181008801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb624f0f1df3ca734f2a093f2c5c5e56ff081303d556032cd16ec5bc45e990ed9. 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/TR2181008806.
Damarımda Kanımsın (By Barbaros Akbulut)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c792536a4a61a8a81cc04940379f14763428a3ae5143aad7881abab5042cb4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TR2181112803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a2c898ef14b748be0f6e032158d0bb07e3272213927e91f052e2311ac7c765. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T22:46:01Z), 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/TR0341200095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae030eb3c3b4cb4b3d4b3763bfbf6e1f484d83b8b8dba04116f6f7a004935634. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/TRUM71500003.
Sende Kalmış (Burhan Bayar & Şakir Askan Şarkılarıyla)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e58f4ba75432b5b5bf25da12c0475b67258a70b60cfec44a555771b090b014f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:04:27Z), 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/TRAHK1900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966c6d82aa81e602d0bc4d14fe052c33f4c4e1de0f20cf3b18134bcef0ae2c1d. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/TRAHK1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c5f5a548c9161b10db9aedcb7abc1bf1b19c6c64450f73485d16dcdcf13cc6. 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/TRAHK1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfd37e85d68d2905c69b48d0d31ee3d53d6e3a9391b7043202c6c23e6ab87ea. 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/TRAHK1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8d1c797fadbeb7c945dc97c1bb31d3a1fb7b6e2944c8cb63101e0c393a6c86. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/TRAHK2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52adacce5abcd53625bba9c2e7d150f4c783b314b43525d89a0e081fce2993c. 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/FRX872285393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2809db4218b4ca47fa318c94ba1ababee981d356a678f359c13b715eda60fa68. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DGA052223288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2809db4218b4ca47fa318c94ba1ababee981d356a678f359c13b715eda60fa68. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DGA052223288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52adacce5abcd53625bba9c2e7d150f4c783b314b43525d89a0e081fce2993c. 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/FRX872285393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce6743185b3ffaac37139430d5653b77d79e919fb598fcd5a50b66c24d41f66. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:45:21Z), 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/TR3022200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce6743185b3ffaac37139430d5653b77d79e919fb598fcd5a50b66c24d41f66. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:08:13Z), 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/TR3022200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082e726d08795569e2c8e0268d035259b6059236051e41489cb05ba814302a7e. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/FRX202367972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d176b2a691f73ab3e2b814e2e2692341e9534b787c80337700ede23bf60dcf. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:42:47Z), 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/TCAIS2477658.