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 0xe8296ffef89812b6a41b685f5134ca0a409b266596f19012da189de7282f5b74. 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/c9e60adc-2174-46dd-b72a-1045ff7fb2db.json and https://artists.proofprofile.net/proofs/artist/c9e60adc-2174-46dd-b72a-1045ff7fb2db.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 0x741451b4032d61d3036f2d0fa544d57678d33a2de1b1c8c43548314384898d9a. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:28:17Z), 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/HUMAG9200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f1ec2b6b4bc40809b3629c910e2208aabacf923cc5916ba23d6ac42b6240ac. 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/HUMAG9200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82debfde283d1530fb8e142c143504e580fa8a6925423f355a6dd1f131a13c7. 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/HUMAG9200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635567257268dd1e4bdb6ae4376cbae5ec56d43d0f53f236616130f48a8a8e24. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:16:12Z), 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/HUMAG9200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c3c8dd18f782061cafd2a55011e0538930c1f05446ce3b936ffb6e5319c1dc. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:26:38Z), 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/HUMAG9400079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c8d1c5edce03e026c581cfb1bd641086bd874a51758ff4ab52fe49abf47d5e. 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/HUMAG9400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce6ffbe302ea7c3bb07b9bedc33f91b3955b4c366f85a703b08ad5ada1ac4f7. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:49:25Z), 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/HUMAG9400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505ccbe4f6bd9650267bfc2fd32bedfadb4bebc9a4be7579b2aab7d405c7cf8d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/HUMAG9400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae1c47f35f19e4120a9bb51d4c02e484b237555838c6f35591a1bcfe09323fe. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:40:13Z), 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/HUMAG9800507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31d344277691250ce02863d34491c051a916b309ccaf1632119bf38d70a8cd8. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:11:40Z), 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/HUMAG9800455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52d5da842c331c855f02875c7aca2150ba1d3e64f9fd7ce1928b5e17e5e5416. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/HUMAG9500404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ae5846ba9f82b66019cff2ea7828041a2fb4af751dff72076f462c7e3965a3. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:03:35Z), 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/HUMAG9500409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55642e938eb8481340b0ddc077a7275a9af90e53625d344877171d38bf50491. 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/HUMAG9500410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a03cbb1cc64eb9cf609eccba6aa3ebca1115b7364545340dcde5740d22952cf. 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/HUMAG9500411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63268b9ad568fb3a6670493cb4f5c26d302deef1b64ef339e7e1a5ddb760dcb0. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/HUMAG9500413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da27189f5bdb62ebe17512a5aeb90489cd870330c8eaf0431fdf4b9fdc9d2ab. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T03:00:23Z), 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/HUMAG9500414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec59875e13e7bf75cd2a2a4621d5a5202ad83a9be767f9a1db3f539ee5bf228. 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/HUMAG9500236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6d4c98b4836bbae9f7cc34690927ffefe4054612f43aa6ee265087a045ee7c. 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/HUMAG9500238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb5a376333daf2d5a8d432ef24b858d96fc7ef10df0975b2d0313afe3683828. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/HUMAG9500241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a36adedb9f4e62a5bc022e83bbd4c45d9d55ab5e8495f9e2c6a5fd83a0d3e1a. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/HUMAG9500242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562260b96e9d56101fc0d60030c580eca71c7e59f1bc7911446a909b0d10b49b. 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/HUMAG9500243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515d8b62c8d5f35633d951dda53b146eab36c3bc929011b930cf96537650f6b8. 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/HUMAG9600372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873b439ca1912585a6b175cfb5b60b5ffcff2f9381ba4e6f822f351bb144da16. 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/HUMAG9600373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe1a105887290f8db7943cc37145031fae5ef9e4e22a1fe8637de728da77af7. 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/HUMAG9600376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1af60076ad573816003a8a7d00f4dac47e94ccd3789c7820ba3afc46e97141. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:08:51Z), 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/HUMAG9600379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb22517ba6f0670a3e5ac01e056f033950e3f15ec1a445f090f41acde72a9e54. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:53:28Z), 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/HUMAG9800147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ddbc77d68f50102fdc5acdc85a1efbfe47f5134e9babd424d1feaf8f8214cea. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/HUMAG9800151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf451536b248925197efb5c7c807ccb2148e592d4d48eafdb26337d328c43c7. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/HUMAG9900031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345472e3622a7fe4a579f3ee8ffcbe944dcee84b9fcbedd1b05d492e966c09a4. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/HUMAG9900442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7086fb3380ae458a3e4ef4109483f6a2319b2643c89977efc36f592ccc0164a5. 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/HUMAG9900443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a3225ec04975053a066b2ce590f7e954ab9febf967709597c0fac51f8b5be0. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:08:49Z), 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/HUMAG9900444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554a941b19a55afcec5d772e659d780cef045339c1c1c8cab129b9920cbf3234. 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/HUMAG9900446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce9fdd6d995b038e79b8d7418f4b7bdee9a14ecc25853e3175aec78f85747b7. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/HUMAG9900447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd588fe4ecad02632d00aec1b5fef15001b75fe08154a1cfcbda658a83422b9. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/HUMAG9900452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de6c707d20816535dee7ff5f88218645c735e24c71373e8ea806fc10ee91869. 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/HUMAG9700392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23adb80509a7a8c1f500e583f145e8a3b8fe11923d3d98576889d3ffd75ccba7. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/HUMAG9400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57fa6fcbee7fc99fbf5e87d16cdbdb2e29b191036a174e867071c53fbbaa31ca. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/HUMAG9400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149bd0155d71c4945758617a74d0b3bd3195e863d9bdc198daa1d6ef8b13fab6. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:39:44Z), 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/HUMAG9700453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80fb15cb869903fa8db56f28cdca8e88f3df1b0a4012c37ba411b39637490752. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/HUMAG9500246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c059d662e8542cb7a26abec815c2152cc2619cdc96bb15ac4c50aa53f22438e. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/HUMAG9700229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8e473a20749a5e22a1f7113cd5bf16bb6f69534352743503a07824839215b3. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/HUMAG1400133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f76dc753db96c3695fcb5c8d2001dcdfebe21e4993a1d87da87e35133137ba0. 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/HUMAG1400134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3087a97708d722fef49ce406aa4aa131aef827f70f089660b1b5d5943a7ed9. 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/HUMAG1400136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a732005e76b03bcf363898cc93d1a2d86c49f23887f58bc03eb2a7d1b4b9367. 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/HUMAG1400137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7805414e593039dd4b9f6222f4c96628fa5c60d21e3f32b3557b8c50fa7d9c8. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:01:16Z), 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/HUMAG1400140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97ee4268e0c24b7dbb48b360e90833f673894c37fbc35ff215129742e348ab0. Chain 2 (Bitcoin): anchored in block 957616 (2026-07-11T21:52:36Z), 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/HUMAG1400143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcaf0a5de04557a50843939299d3e7d51420c334483cffbc03808e7b6311d53c. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/HUMAG1400144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70930eb5a4074aca90e0bc693735d0cc536c5bf9d544a6b8824231ff45cf303. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:28:52Z), 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/HUMAG1400145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b982f6a3abf96dc9277d4f33fa4bd5eafd7dd2dd9eab95c366ded76f045ec40. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/HUMAG1400146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27acbe612f6a4253ae424461d7d2efea9a47cd06c5d0cacbfa290393f5b5297. 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/HUMAG1400149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43584c0f9bab64039f2befd0119fdbcfbd898b32a0593275c84e5be61cde233. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/HUMAG1400150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6621991c6af9508e09b41fc51e206d8e809d909de923fc0bd0dcfe11e43d55. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:22:44Z), 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/HUMAG1400158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07c1c8512336bfe6647083b86ccaf4b78b0f1ea48e9460fcf824aa8b74f7180. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:52:32Z), 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/HUMAG1400160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76439752512ea8eb6ad0db3d5caeb229f035fbb8af2b9f2b0b5c3178dab9ed8b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/HUMAG1400161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa0ec65462958d9244ef1fd5d681e29a8e751354c114b121f9e33da47a10883. 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/HUMAG1400164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24571a441fc1ed8f367ebbf87c83eebabf1488657697c7b6957989d9b24de3d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/HUMAG1400166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84dba4835109aaa7db9ce4e32e567067a78cc4d358cf8dcbabbbc13f92d7ee55. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:11:29Z), 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/HUMAG2020184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefeccaf0edf0ba0d121c96dc583a318e4fe7acc1a61250e76fe1e27f820aea49. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HUMAG2020188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff6db51655d705969060db5fb5f157a3fc11bb02e59fabc46dc444d12aba3cb. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/HUMAG2020173.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d92a44747f9a33879b58cfdff1cad10e139b514e54d6b0b531e90715b179f6. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/HUMAG2020191.