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 0x3a624d214021e027e88555b7df782dc1f6a3b1a1fe8ffc5345b79bd96ab54885. 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/dd4e9d14-767f-45df-991c-8d5c38de5d41.json and https://artists.proofprofile.net/proofs/artist/dd4e9d14-767f-45df-991c-8d5c38de5d41.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 0xb6339de0aae40f5d4feb5aa18cbd8fc4926fdcf70a40c8757e677a52f902aacc. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAEU2061527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a4962508a0e270c00ecfb4b0738752ce9fe21df565ffd96e4cf4ab8e94251e. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/TCAEU2061405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4dc73be5c512d1a193b823b2cc3e9566122e84a70c66f1f335cccdfedfdbea5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAEU2061293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9556eac1b533c74396ed1211c71e418739cb9516e3fe8d186dca969f1e9ea319. 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/QZK6F2015389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a250afb6255e68b58e0e2da31056e6a1a8769c315e82589645f7dd10cecf82c. 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/TCAFH2055483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238f5be2503877ee041a96d27cbd7f0ba5f919a899942aed8586ff9d9f7ef2af. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCAFK2104035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a64b289ae24476970565e0a0bea5bcf671a853e1173e615a421b3ec987d8964. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:57:26Z), 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/TCAFM2124854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbc10eba489fdf5f03534cbfc09ebd45ebbd34386cd6d729e0cb7fc8b62374a. 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/FRUM72102085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a34ac77cd2de9ea67540740e3aac569f984ec469d38714e008bb1477428f694. 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/FRUM72102305.
Koussi Koussa (North Slice Freestyle #4)
Koussi Koussa - North Slice Freestyle #4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f816f93dc5cd05e092e470c8a7f00885bc782576f79047bc7c16971cb63dc75. 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/FRUM72102470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd4af711a524bd53e057e0a06f68cd16544bb21532a10557d274cf5ee75410b. 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/FRUM72300866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067eef3ae5c55cbc6d02b1bd861c9b403cf5be19fcf5181122a40e8f3eaa03d3. 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/FRUM72300864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64f437b6af8aae5ea26ab3bec5256faf7edbed03906d0b4623c1d4017b6ab56. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/FRUM72300856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3968045d314ef665ab6b6e13e59f112046c2b8a28820a876193a6148cf09b380. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FRUM72102175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2479aa7ec28d6bb2e194325f15523a8d597076d69fc3499f5daae58f7667d32d. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:37:38Z), 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/FRUM72300858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8051a61eba349cad8ac7adf0ae79b57212f176227b71a26aefed8489c7a8d030. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/FRUM72300860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d6e3c586e9f1557c6a33db5a98d033a149617d61f664c8e622b361bb0279a3. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/FRUM72300863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067eef3ae5c55cbc6d02b1bd861c9b403cf5be19fcf5181122a40e8f3eaa03d3. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/FRUM72300864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61830e7420fc71f5f718d54afad4d0da6aafe3cc30dc6fa17ba67902c8fa8a01. 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/FRUM72300865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2479aa7ec28d6bb2e194325f15523a8d597076d69fc3499f5daae58f7667d32d. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:15:17Z), 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/FRUM72300858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941ffc86468be46e4b9141b9772c52c8b4962a5a419ee3adf29dae15eb9dd1f9. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:38:57Z), 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/FR8PV2301360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061f30df81d6c090623d53a2edd90936a09746088427101609219eb1d5d1aa91. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:43:31Z), 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/TCAJE2420679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4364a1e701cfb59ba24290db52aeae4b98be17360825cb69cd0ee38a7ddd5cc6. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCAJF2590962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f133ac76b7c7b5624528f4e43a8c09687502ff2fab08fb8178985b5fe5e454. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZES72539803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1081f16119060a982715d44270807ed65ad8dd48ec9e0025cdde1671932f7e21. 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/QZES72539804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850fca55ff923c4ea58dad6c66b8744ac3e9461a7c946c7011c4e9de57f4cf07. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:23:07Z), 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/QZES72539805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642d4c1ac2c9301494ff8b3321c2c6364d55e0e24c3d47ca7d992bc60b5db8ad. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZES72539806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf951da73910da20703f79e04065652d1cf1451dfcb3673880ebfb4e50341aa4. 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/QZES72539807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24e92098145ecb9e1b8003173a14acdc14e5b136bf8ac5e5435363e17216a71. 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/QZES72539808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a30c1c617b640ca9169d8008b9a59a778f6bc27b7bd2c5fd788fc959a3ddb3. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZES72539809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d61bb40a7c75e729c8e590640b92c0d84bfe7c4a2148ce27c5a437109b6ce84. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FRDFA2100060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ddaba87bf955f5e5f0b523737cdb9096bf45fac609bd436ad111a13449b830. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/QZQAY2202439.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch