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 0x8242f65dc0649673802e178e8b6776e608ae9944ef0a88bd07c87818c1e17f94. 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/9013bbf4-084d-4ae8-8a58-ea1d7e17c385.json and https://artists.proofprofile.net/proofs/artist/9013bbf4-084d-4ae8-8a58-ea1d7e17c385.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 0xc08b17ae43208a32d36fbd7ab6fb7159eda011407dc1d6936848a849dc452326. 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/USDY41732251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6969163cc94f7cc3da3e7439138143222ee9236b22b7529a1feac7e94c2f2351. 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/USDY41732257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfadad2024458b6f486eb1c2506a018aee70ec8ba3218ddcab823e1229d8a7c7. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/USDY41732259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33b811298edb1169b49efe81c0e5371f0f6dbe47fb023f143ee8edbb0770fe9. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USHM91729298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc685be40836be43d756407a31e81ae7ea246cb9111062ee226d773d25e4f48ac. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMPKX1874567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1509fbe6e4cbefcf07565ea8fa624ab817941fa24febe20101d5da4c1f3d3e94. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QMPKX1874569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c36e0669cd983cbde09d16db0eaf50ed7b5fc0919d5557564e23bc2f13cc100. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMPKX1874571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121368fa9eb759c48b02826c7540f86612eca3f6e340324a3c519b592faf4329. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMPKX1874572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4a84bac3364c1011034912242f0a97a1d560888dc6a72b3d2a29421e718b20. 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/QZES61924677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c0fa926c733587b47c3227cf55d9bb3b40fc50469175f4e93f7a60a570cdea. 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/QZES61924678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e957574c2f71fd3c24b3fe759ce034ab02755297cebf2b1a8d25f6a6c3cca8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZHN52010569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ade1dbfdcccfc1e5f0075e4f7695c15954935fc342932af48ac48ab08cb328. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZHN52010571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261fd8713fc166ffbb7bd727215a838c9e391fe1c325f518f956983f9b352d78. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZHN52010573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc109bba6780e4437fc0793f2e114908e4a84bf0db97ef046939bfb7c412f5ab. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZHN52010575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7238ad2c7c9a948c9ce3dd6c339d5de070023c6a89f22eca4a258273f7f727a9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZHN52010576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b3cd23afbcc748caeb25713b2456eef27c008d56d809ec2ab649f51be2fd76. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/QZHN52010577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae425b44e59f4c7ebcfc759befe4b95676f09820ed48573b5b90f6d38663a4e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZHN52010579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e81925bd39026cbfab0b7ebfcfec7739e944a3925ae979d8a20eae2ef78de0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZHN52010581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51cb50b5617b3e0bdf45c14b0d8f142391e2be59f205664284bf918b89cdc06a. 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/QZHN52010582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ababe4760b01e641c032845716a5be435f70d5096c01fa6815d07b5a1b47c9. 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/QZMEP2196059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2806a55513a64c8b07e01cf0f6d13960943f342f078dce825164ef006485f30. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/QZMEP2196062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49dba408c093802a828c700f8d4d190a9290cd19e96e05d71046651781f0d4f. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QZES82272089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c44046016360fc0fac7665b3812f8e46c9ae167bfb844017cda4a62bdd51ad6. 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/QZHN72203157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f509972ee40b04b1255ccbb6e2c5723fb0d2280e199cc28baab3d84c93118d. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/TCAHK2389445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677e13e53f979e9c1e7c06ac6085ec6fb8577e9f8da5e8e90925434f73ab6164. 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/TCAHK2389456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab8e5833f0ba12db53bca992d195930a3a69d9e679746b7e4acaa8410c55054. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:46:37Z), 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/TCAHK2389465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb45b0d194b5a4963120c30b05b3f6f7edcc23aeaf1e42a3cd7124adcc49d883. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/TCAHK2389483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e803185414c3b8ae95527439f4f8af681dfe1424db52cfcae9e2c94989e2ab. 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/TCAHK2398070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fefd46b17d16a559ab1c0e36ce7d0ac6c6cb619464badaff167952e2eada855. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/TCAHI2311511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1da069f3c49d0eb23df41d3ecbf9a74763c98b517d41afabbee2fcb349144a3. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/TCAHI2311544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8b9f7ccedb04740ca25c47d7debcfebe1c3833805217a0bb94973d9703c1d2. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:27:01Z), 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/TCAHK2385500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02db54e22eaea7934ee3ab9f2117bf44386d2d0c90709c2b850d90e35fae2c5e. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:28:41Z), 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/TCAHZ2449369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57e2e9185bb8df8656f6ac63663621a6d2717dceac754b4782d6334fefb1e37. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:55:04Z), 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/TCAHZ2449372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4cf0954c4811c87670d8119ccdd470afc98326aa587f0163350ad8d0efcade. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TCAHZ2449386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63df0ecc8765aa78d604d23f4ba39b986b12b7d4dab21128f043b908c17c10c9. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:04:44Z), 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/TCAHZ2449424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7289228e71e939d7ac20d95e4d5a4738486e14fe41b4e1bf64053b45f19d9ed8. 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/TCAIN2458825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228c769b5a489bbeda0aa7df047090a99e22413c58ee5762e4b50d394756ca40. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/TCAID2436736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601316f3ee9bf7204baa7dd16866c187611bb561830976e233c66e418c131da2. 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/TCAIE2436755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b8792b9282ed352ae16c22e11f2726e1fbef4de699840faf445699ea3ef324. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:15:01Z), 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/TCAID2436762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdce113a9a874dbf21071625068dce4dd75fa7e60d12cb52ae10be2eeb1d37a4. 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/TCAID2436772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6223183f4fc58f5bf09079da423d802a986858d4a7593573df199eecdba1541f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:06:59Z), 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/TCAID2436776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa400307e3fec9574b5a5ece1d79a71bb19992542a0ccc6abcfb664f50b77ae0b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/TCAID2436785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57aa741e7bd47668112f49b44c8a0e0eadb7fb48d12f3196a16cdce1f61b180. 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/TCAIJ2498591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a0bf2863571c1ca43b599f1406a8b5795664bf7740ca1192872e1419ef5bd6. 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/QZTGW2402535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3069f1afb1c0b189bd931fbe2c6b5efda9fddf4473ba6a0c2d9b7b01c9ee8903. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZTGW2402998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ccb0b702d73b3c9d55b6020793d61c48f1daa1a176f89187abfa99f2e4059f. 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/QZTGW2402536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b7ff4b4458ac4087f4a3b16e1a6449e519bedaa84e3cda9bb0d6fee7c7d29b. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZTGW2402537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc345cb0e7e9c326b354823bf3799fe568abec7655a3b5904cdf4eacf0ac0c275. 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/QZTGW2402538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fb0d278d502a9281b2ca69c3f47be5a135301a31a28dfb3dc2f1d1f66b68f1. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/QZTGW2402539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b23b5d9db8c04b61fdf769566b76e275530c049bb2369786faa3710dbe1cf95. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:57:15Z), 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/QZTGW2402542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76fccaefcdd3a6b7855a974090673e35cd8ae67bb369701bcb002856badb593f. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/QZTGW2402543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf460054696f5bcb53b6761d6febf59891de71d30311b39cfb48b7a09c9907e. 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/QZTGW2402546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb509c927e0e2d955c1ade9ae3b35a4f28c06cbcdd4ac0d432164bcf7621464c. 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/QZTGW2402533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a397503e182ba56f5d4d90504bf8ae713de69ad7d4403c8f62549906ebe3f6. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:35:38Z), 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/QZTGW2402534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a0bf2863571c1ca43b599f1406a8b5795664bf7740ca1192872e1419ef5bd6. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZTGW2402535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ccb0b702d73b3c9d55b6020793d61c48f1daa1a176f89187abfa99f2e4059f. 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/QZTGW2402536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98d4cff901939aca4db5ae53459f08dccf88eb75d1acad0c10d9e3240e0943f. 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/QZTGW2402541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56adcbacebb44a1baabdb7bda7e1cd3c6442f4528c7d464994e2deba4387f38. 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/QZTGW2403408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a97a5f2f74d2eeeb817d145dbb90adc4a5d60bacb278df036c0f91534f9271. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/QZTGW2403409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2668f96fcaa0beef3178684dfc4e9abe815b4413d36d6d3a361b1dd13eb45422. 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/QZTGW2403410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ac8d03b3e02eca8c63cad75e4ccd5e4ab19e52f5f27622107bad528e361d80. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/QZTGW2403412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4668afe061cd6e55b4eac955d8f29f0c6fd5cc39d4a43c8b7317c0e9fc94e3. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:00:54Z), 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/QZTGW2403413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aec150d0dc546b07191cd1d6fea9e86824760e2660e14ebaf06d9428bdfafef. 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/QZTGW2403414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b7afb2dc1a78079c8573db252097322b51a2d37e8dd03a055a9f6f3d5e3e8e. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZTGW2404601.
A Thin Line Between Music & Mayhem : Calvin
A Thin Line Between Music & Mayhem : Neno
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb9d6d31da8fe54f8d8545e1cf0ca92e5af1e9d7d9f8388d14008dcd1b69e47. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USCM51800334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc405fe57a27d824a5efe725af006d9ca2d53254539396821f7c6569dfb831c8c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUM71923966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f449867db9d757c94a87e0ee56012d28fe9b9195b30cf37f6e6229af783e786. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USAT22305797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124dec0900b8937ebed1f3d471a315e27d884e9f66240b16ecf603cae3f5efe5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USUYG1376246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffbc1cd8c09130046fa7144123686c226deba7ebc7739ab54215231d7532265. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QZMEP2064262.
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 0xf2b506b1333d4c9f4d1f6c31b40016802353f611dfd8d93aff2da0a04ac7fef9. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/USUYG1130479.