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 0xdbaa0c5c2eba115ee0749f15b44f54400277dab02e76406d273f2437adb11c50. 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/471bd17a-c941-481a-b5f3-f4d950b6ee73.json and https://artists.proofprofile.net/proofs/artist/471bd17a-c941-481a-b5f3-f4d950b6ee73.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 0x543e1df056090ae72f85536396db9b3453dc7d16cf439e85c52a52e0a0ecdccd. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:29:41Z), 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/QMDVP1300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb6af31f38f379c5887c74ba15f0e0442d47d9569a33d037006d41d6f0eedba. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:24:04Z), 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/QZES91930134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158a1602a39e74ba9f6ea92b284856ad75f0743ae45eef277763f7ddf2218264. 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/QMDVP1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181fcc495efea0746a862baf94d2c2c4ac2cfd5a0d81dacdc91a30670ab1d10a. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QMDVP1300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2725197f4acdb4f160b87b59e3a1ab675afbfc4c730d711db0fcc7e4a7c2bebc. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZES72475800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be770e11ea3c7c266ade887db93b25375d3b12f9c15ace66ac9f4f38969b0a9. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:20:31Z), 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/QMDVP1300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbd6ea9ef06f904c867c50396ad618168bc6c2fb256544e1fa9546f21f81387. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QMDVP1300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4b743f2c162e0d0fc22a04d7954728d791c992e5f1d423b5f1f0fceba0dffa. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:52:39Z), 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/QMDVP1300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533100069781fc28ae8c8dea12efac42355bad37f0b274ffe95ead00121ae4c3. 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/QZK6Q2473682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021e48e82861e9381bbf57a0c86080705d98b52bc6835578b71b5c1a03b56d66. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:01:05Z), 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/QZK6Q2486032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d83c912561c6ac497f2c89689e4c9cceab548dcd961a826bfc0e19de93c374. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T15:40:10Z), 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/QZK6L2468773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ba32210c97749ce7bce3374cc4f507eff4ded92bab643d5463d54da497e75b. Chain 2 (Bitcoin): anchored in block 958613 (2026-07-18T21:35:09Z), 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/QZK6K2401055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9d52835d6750ebb4d07e8536257b62db288097d820e9a4a7642e92d4a6381f. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:51:34Z), 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/QZK6G2401735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff5b844a2e3f0d7262b8699e07f43d6ef8d5e5df5ff2549e6eb2f5692e60ce5. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZMER2409123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5b127e52fd27ccda82c44207eab5bdabbe34166db3cb96cac6a58dfbea568e. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/QZES62335027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebf0c3619c5dd1c9a9584b2a092c3acfb386afdd19356edb75d093e53350fc9. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QMDVP1300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba428187ffc882824e8e20b3707808c957ec9379de8cd1ea56838e4330d72f40. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNWV2412505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc9583e5323858a3907dc9b52794942afbb6879255b4b808b6897ac611d0698. 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/QZTB32533408.
Fool Who Thinks You're Falling (2025 Remix)