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 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 0x8559e735006b05f407773845e6de7dc851370c9b315fd04b44a25e76de598f16. 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/b853b3a3-6fe5-4e94-949d-e4837eaec947.json and https://artists.proofprofile.net/proofs/artist/b853b3a3-6fe5-4e94-949d-e4837eaec947.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 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 0xd554eb6db5ccd2a49cf1f2f70c13229bc043602c5e2291382a62e3778007ca84. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/GBSMU8716022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62c959e43dbcb7c3bf79d0ee0376129d15c52a6ce809db882ddac6db0d160fd. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GBSMU8872528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45ab96122d4ba400d263e96b124df58c1999545e60d48c4811a5ed81c89b421. 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/GBSMU9458726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9ade6d04b77da24f2254a1b4c3ee5bc737fb14059cba433e05855fc9c87855. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBSMU9458728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaecf5cf89e5a8187eb0a2cd22405f46ec1d41d93994e8e3bc38f4a15b2cc4ab4. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/GBSMU9458729.
Screaming In The Wind For Proof That I Exist
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a55eac57a2aa9a5a9e2b135df4a066721750b5fffcfad9b8882ef31f6e9cc2d. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GBSMU9458731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbb1ab445c0aa6ff35c97449f35aba8e5884865b6502040934bc50f1547c3d7. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBSMU9458732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9bb5949e78e99a80abed108c722609f9a8da8985f32591a2baeaae80be9e442. 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/GX5MY2325664.
I Hear Reindeer In The Atmosphere - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03415c8a7b45aec26426616cfb0acf5e7006813960ddd472072d21027ae4483f. 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/GX3HH2406665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6050ac105a088bf720a8e13063518ae1e8743452128926c29d0a4805adc9fde6. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/GX3HH2441993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f1c112bcb837b2bdfed32a72ed58d49d5e2d4831a48400f45d16976c87cb18. 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/GX3HH2442820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6635b70986834cac870f6abb5468f481f371be5dfe044e57cdd41f462a0ebe8. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/GX3HH2473550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0025345dacdfca005cd1ede48c3b9f6b7991ffbb15e1aea05de0916fd19d3e90. 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/GX3HH2418432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3c3768967c04df7328bd371b93e8da45038c4a51beb15f254c774ee69e2a2b. 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/GX3HH2408060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35b82b63edf5237cbc5bab292ec18ef2248d5065060e62b3cf26c3f09288fd1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GX3HH2471356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0332bc6a530bc9212ed69050403d3728ce0c225e038040f0244d9fe4168eef4. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/GX3HH2434034.
Screaming In The Wind For Proof That I Exist - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf140c60117c679d3b6793cb685e6423a07646169c59a98c57772e0a88718435f. 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/GX3HH2425948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc584282ee1918627d2dc33474f84cd331d44625a7ef8fb7e8ec2669005bd92f7. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/GX5MX2410848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb33fcd22fb742dbcfb507258dc179b0ab8286263c185a6fdb128b3f3a493d9d. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/GX5MX2410563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc74501010a08a145fcd70ffa6df6399b56db6887a937fda7c0544e2e1e0b40. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GX5MX2485649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4addbfe123ff16527ea936452c980dc268df7232427ed7d631bfc5eb83998093. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/GX5MX2484090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953641a07559fc6d01c990cf9c5735ad53529b6d3b83c97909a313f475b4c696. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/GX5MX2461798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd410b08dfb072b38b68bfc207bca5442ab7977fbe045d010cb32e88dc134022. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/GXBDT2501050.