1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xd9f666371c473c221bf881233231f4bffdf07eb705b58c02fd0c8da8f6e27120. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/441b32fd-e859-4e90-ae7f-5b07ef267fe7.json and https://artists.proofprofile.net/proofs/artist/441b32fd-e859-4e90-ae7f-5b07ef267fe7.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 → block OTSBitcoinBlock must exist at that height 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 0x8b9164f4ffb27ec0d378d20f56945171fa830aaf59b9fccbf88e650c97a76dfa. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/SKA010003301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440ba22acdc16c4d1be2c812f6a36a2554416ed1e9a91c2b8492db238a5780b1. 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/SKA010003303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd3d00b2fffc0467153a027b1dfeedf352ed0111c68f4eaccc184d4ca59ef88. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/SKA010205102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165dd3e6cd5f1649598c694bf1c9f4dc96f5e4966b72b57c033d01c67e022bb4. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/SKA880900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9bcf49c5a152bc13955409fc3e46b7325465325acba5e41e3797d2010b78a4. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/SKA011000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859d150f2bebfeb021858841b85f3d0ec58dc8e7c60be4b08bc57019161c6683. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/SKA011000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f55552b1a36312c9a46b807ba0f18fb4c9d630f7124349383bd0c0ca3f9fc1. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:10:06Z), 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/SKA011000045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419ddf7f3925aa5eb7c6dea3d99107e5dc0c7a78cb5928ef9f3f6930830fe775. 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/SKG351400813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6986dae4950e22f5add0d901d9bfe0a4b7d463ed2135482a11916c98e805a9ad. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/SKG351400816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a29c869fb77e900f71fb8fac1c58480f751a2d43dcad01e3dd279a89980de88. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:00:47Z), 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/SKA010003302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2669100bae2aae99d6ed8310cacf3c1c5a278c01277da105735af0858630b4. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:08:05Z), 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/CZUM71001137.
Az Príde Vecer / Evening - András Cséfalvay Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd59f7a7020d8741bf7561309151dc5c7dd17d58c2cb5e0e93b869f75fe0d7e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/SKG351500907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a5f3c9043f05db20f69d79caa69c47ac23bc9a8cf94ed4f1bca532e80300b9. 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/SKA131635508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ddb66d860e51bd3080d2a153ff3f587501c891afb07e3ca649edccb0e1e2ee2. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/SKA011900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e616307459940aa6246cd050d6f97e8847dbcebc6ec8fa6d2dc48c29287d96. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:35:09Z), 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/SKE012316408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d844cc0d13159dd6efd5aa103b3f06cfb565a2d74e6015ce83f0095e75bfd8. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/SKE012316401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8007f804d1a95398e74ba300d11d60b8c54c1766909606f5eabf5d7f30f80eb. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/SKE012316403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c729f2aef58e78cba2be9e1b6dbc9ef28ca78e974f6c41398ade65fdadd7f88. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/SKE012316405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f7ebf449f2541ec497a2c483b63dee619fb87510df74d7cbcfdc2cbde4516d. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:23:13Z), 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/SKE012316410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfd5bf1f788368b288ad38bff55f134f38ec97c9220ad8cc2461ebd2166a02b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/SKE012316411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea7ef076fafa6f061ebcd3eff040f50e9e5db1884ebc8881ca36111b15b273b. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/SKE012516412.
Medzi nami - Titulná pieseň k seriálu Lebo medveď
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58d6544cea6ec210434bef968023f3774f2d13f1a68ea76dd24c4ce1cf4afb8. 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/CZA232300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda109793230ed7ca172f890b8419f15c2b9444041c6fefe10d11f23c25001f58. 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/CZD401709003.