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 0xb547d122d0fc8dbe20fa11d594265b239fe7ee308cae4e7ac0962052877615e3. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/89b89b26-ebe8-4407-9937-de68d730e895.json and https://artists.proofprofile.net/proofs/artist/89b89b26-ebe8-4407-9937-de68d730e895.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
i'm not a violent dog, i don't know why i bite
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 0x309f1400f28350651e0603202602a76f4564512cda3a17643d8bfb9c8b13ca46. 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/USANG2436874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45907c0029d6d4af70416c80aaea66c10cc7471b53bd661eb6e6e7e9c5a68355. 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/USANG2436875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ecb6aa71d0298a12ea5e3f8885ba79c2495871f0d6da8a0eaaee0a946a81eb. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USANG2436879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e61ce516450706138e934d73e1f2c4f41643c6f99911f17521242f407c1b5dc. 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/USANG2436869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128a102cedf99ba8a1078d80a9e2da02a460794f3bf8ccc9dc75fa0e8307bcbb. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/USANG2437557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68995fa6f559ac2c45c56d03eead6f4367005ff2dc4beb82fc15110ad30e4cf2. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/USANG2436873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfefd51ce3f35a70fc15842ade3f4ab2ad71acc454a4fbb36da93dc71db4fb487. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USANG2436876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02806b649e41627d125eec1bed90f27bf91b972012dc23dfd81887e31ac166b. 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/USANG2436878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4532be7480e94d7166e8e5bc9dda91b7fa602c23771b803dda67c10cf4ad9b0. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USANG2436872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e35e885822ba55d1c27934851a2fcade318ff6d130e14f9b40bd6962851f15e. 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/USANG2436866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f1a3f7b0df1414b3f60cfded4d4136752ba1f3a9f9070c8dc21d3b44835e60. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:45:51Z), 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/US3DF2501819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50441c68dd0328c3c34fe9e398192fc769e41a4497590e28842e036073f4d88e. 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/US3DF2501816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f79fffbd3b6d66db065e6d0a9660f2d34c8e2de029b73155ad7d2e7a647e27d. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:42:26Z), 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/US3DF2501810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0844a0f59108d0d8151b6c46be2d2107732c1472d541389e814543257f7b50. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:38:09Z), 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/US3DF2557341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e798e42dc86dca13690f408558eb8dbc0020ebbae1ed959170110baa498896. 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/US3DF2557345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0cc27602899fb13ef7585208bb0423f2c8f639a3c696b026b7c306f1797061e. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/US3DF2557342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e44ff1ac4e027fd52f0c3eb300f43bce71a3bb89f1e3a66684ad04f5370ed4. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/US3DF2557337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e13c00c6025e048be84a6b2a6e510ba24929f81aadffbf27cacc3762c9d5d0. 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/US3DF2557339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7a290f9780f0f9979a38ad439338b203e02d0a322c4dd3140bec313dde3412. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:35:03Z), 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/US3DF2536661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1abba7a25346e0cdabec17dd375986623a9d43e1e67cf332b39dd3abfc71b10c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:05:21Z), 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/US3DF2557340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0259ecc43e8ef67d4db99c88beb582f13117246fb490a248bce370d884bbf4e3. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/US3DF2571812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb855b794d20044c14339a547e376d8a9ab5352a0429b9453f53920f8ea8c805. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/US3DF2596479.