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 0x41aaac0bcaa0688d0e02fa68bc3461398f6757406f090f1d03e48567236ca806. 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/6cd8ad34-88a6-4e49-9692-d727fee7f37d.json and https://artists.proofprofile.net/proofs/artist/6cd8ad34-88a6-4e49-9692-d727fee7f37d.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 0x57ce5dd4d3d142cd683d86554cb4b3c190275c0261f5f1b3f41f8ac7478b1908. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:37:46Z), 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/SKA011100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0283fa2c17b87bccac6bf43e51415d241fcaf881aae925503f3de7b66d728bc. 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/SKA011200056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046b3893a777574cca463922e4e5d80375ebc60cf4c9b7650f308654633e1a03. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:58:14Z), 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/SKA011300074.
G2 Acoustic Stage (Live At Retro Music Hall / 2014)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219e76c4d5da279310a8217d70737851ce0d0bd0d27f6b75829c074d1446ccb3. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/SKI721500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6dcb14c9e893a3d99d18ee5b1fb9c9f0f03dc73b5fbb3507b640d7f7ba4e0f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SKI721500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a86bfa947d01e011115f17200d8418c4fe4bc64279808421c4316d38454b11. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:52:57Z), 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/CZA231700208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc008e5c9e72496972dc92bd59ac59cdb00c1d0071038a9bb6c7c7763673d486b. 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/SKA011800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5242ab32ccc23aa2f52cdd75ce1b4a054d26a276c1dc67343b6a928ea9fef75b. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:52:43Z), 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/DEZ071900340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe464577583cbdcd0d15b74b1ba1db922be4483c347771d382cb758188d4345. 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/DEZ071900363.
коханці болю (Milenci bôľu - ukrajinská verzia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71222111de75d4f3b768fddede35f8108668f63e0211e46983388fe95643ebb. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:30:26Z), 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/QZDA72276150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1edd5568622fe8bdb1aeb5f3c52a65edc5be6e721d67fbee056a0981922fdde. 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/QZTAU2291821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b92c82bc9c62c3468184c8f0b5c729b0b62192507a9765ba2c8c77a285ef3df. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZYFZ2492579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbada75e99b898b747a648d82964c39145361ccfbfd3db0a07a99096e1436f2a. 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/QZWDW2447030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61b64dde57ab95c644862550bb7b51da8101c4c13f6aa84f57afe63d0aba1cd. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/QZWDW2476385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520928a2d43957ec7c4212354161ebab704f324490fc7b71e51e67142abbf79b. 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/QZN882515123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0216ea6bb97a68040959ffc241a6c65c5fdd14198c08f248a2984ff5410cd4e. 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/QZN882590672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561f990c02bdb270d69dc6dc54e6fd9049aadb4e7312fc18ae913a2768c698ca. 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/QZYFZ2421719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1d41200140987402eecfc91b1900898de66c9622fc0bbbb29a5bdb2431f0ab. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/SKK441500101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a17d3d46567c5cbfa7a634770fe37baa335056ee77f83a53e342d4761bb423. 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/CZI361800025.