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 0x710b02532fe8174c788663694cd8028dfc2e957421aca9f80c75e1b5aa3a44d0. 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/d1272ab1-5e81-4f73-a1fc-2dce6492a152.json and https://artists.proofprofile.net/proofs/artist/d1272ab1-5e81-4f73-a1fc-2dce6492a152.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 0x622e6aadcf7f52226f3d19fa11808e078d2e80c94f4cbb9726fa3a85b0b1f099. 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/QZNWY2113917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680af04264aa13ec3c0666c23ca36b9e1a717b6630005d2e2001d06f0dd88636. 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/QZHN82349804.
Riddim Coming Down - This I Promise You Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939af6ce7df0c9e2c584f8f3d51f23b823eb55b62ca7f4281a400f8ce646699f. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZHN82349806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25fe51b8b8dda79b286276df4c18a93a3628581fe884d208c191d66130678ff. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHN82349808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1816e40544119883cf3c168796568edf264874e54b085d5da1e536c13c9317aa. 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/QZHN82349810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7319ce2b228c0234aef8d54eae23eee58aae85fcf11fece8681cb59cf45a12. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZFZ72410314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9060f3f7a626b895cdec53379de6c55e532db6733376590d04f0a8138ae8c6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZK6K2445587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d66686c9018d857861dfd779169542714df3d0f4cb233903fe86e11866409f2. 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/QZK6K2445591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1465278fdcea67f50d074bfe7288007e2a906ff9a69bd3ab7daafacf8c46523. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:42:55Z), 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/QZK6K2445592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0899f641e8a72e66f9c9fd662fd4d813d7662ef1b1f700a58dc64725a7c7d176. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZTBC2452852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce16f22f341c9bd783c47709f5e4479154c08a0ba77d51ebbd7bc3f2bd537a4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTBC2452855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afaa156e5fa50b6403577bf54497ea153d56bd5646b1a06bb8fc8e1e56442b2. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZTBC2452857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9df2a4083b786b014f6990929ab7b14987f7562fcb9c3fddd87fb7b4ee2dce. 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/QZDA62519448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e10302edd509048f251c77bc9ccb8b7d2c45eec21cf7f787666519ac340182. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:52:47Z), 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/QZES72533878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04a075158ae2fa95590ec9a89f8b1c2a5bb7b03897b2cf9a2f889db8610008c. 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/QZNWR2514127.