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 0xf8e8aca2ff830accd7f7718116e70dca28e603a4508039b86675769f6f99fadb. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9f0e331-b70d-4dc0-9fae-0f086a733bb3.json and https://artists.proofprofile.net/proofs/artist/b9f0e331-b70d-4dc0-9fae-0f086a733bb3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sneakz x Fumez The Engineer - Plugged In
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 0x63c3b48c3e7db3bb95dd95d3064683a071b114bba33872e4e87ff0aea12be38e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5752400247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2148da3e92092128944a1918c9150a9237b63645380ce067e19726a2f53fc6. 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/UKXN22242630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb7fbda6836cb588c339745cd9e36c01f45dd873e6e5f586a8d1dc75a306a203. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB2GX2200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c4ec828cb7cf362c22ae2c2ce231988b4557117ead0d88dcb4fd3ac9e4e59a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX3Q92188287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee40a731c682d7bd146c71062452ae9e85391009cfbdfed83a733d0e4f82e9d. 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/UKSWY2100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe80c23d01054ca4e99fc78a541dc813315fff7ca7197070407a01c8e40bc1b. 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/GX3Q92120254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a5ab2354efc3a48016633a390a0f7077d5f96c8e9beb21bef678685ae654ad. 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/GX3Q92053673.
Sin Squad (SS) x Fumez The Engineer - Plugged In, Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59aa14858f5cdadeaaa050cb7885fb04b51ab7277efbf5082fbdd077873111a6. 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/FR59R2194964.
Sin Squad (SS) x Fumez The Engineer - Plugged In, Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf95ce17661a91ae22c47da2af6dc99a493f1ca3060cdb95c8b3909cef47626e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59R2194963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8002c3e15231bb49b9cfab43e777d4f66ee8c3c19dab301d7cf5e508919b7563. 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/UKXN22127530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805d9b8725bbd2a1853e2c07c8687bd8b5a096f855eab081e7721604d6b2e990. 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/GBLFP2198945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f242d3723558ab92ef16fc1140b75c00805d93d6c38e422b35aff724c65f87d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLFP2141042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a337017175a9714217cb068e24d912c7409bc0d2e6b59a3816dbe73136477d. 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/UKXN21926369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f3ea32d1482c52468b4a0d3d36194ca7a23e0ccbadcdb55e0ff2583d580ce4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN21907991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef18afca29ca930b896c5c926efbaad1ceca738be29714a89773097f214c7c5. 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/UKXN22064838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c3329c53d2d35138061d4e4d9c5eb8fe46ecce30d321808b8a2801b5e6ac32. 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/GBLFP2076096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5dfe17ea6b1f982657f610546618bcf7550c40ad461e0075a10c84eafa0d41b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLFP2083695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a0bfe1d634de2294d9dc7642c9dfdaaa23268e3d839478b1d532819c6ea566. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBLFP2071087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae328d64f7be1b722cabef18723b0dd17d8b8583780550ac773c5603f73889c7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLFP2092599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf021183e5d835639499cfaa83be5c87f249bb3baa519c4efc18fc77ab2973c2. 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/GBLFP2058171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e4cd25acbc7833d564fe4c6ed8e91aea926f348c8dae9d9a768c4c70f1da4d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLFP2058111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b122c9aa1d3e84c9c5bd97a02deb27bbd41a0ea04969ad9b64f7e09eb3d099. 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/GBMA22080804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce7d4d28a3498e70c04756b9208f6543ff0ed94717166fa7a2fa5116981335e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLFP2015558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7421bdfefbf300965662c73f56406977cdcdb2909d4841a2c0958b96c43adac. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBMA22076717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ace4448a95429f575ed5674b14bbdfa8779eb913f73bd29baf7369aa4c4e8e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBMA22069629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb1d23197115f6fb673e6e61b3444681e0fc3b3399098363d7078ba25011874. 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/GBMA22069579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec53e9c8166739291fc0565715b17e1fd165cc5d57f61b5a88499fabe048a585. 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/GBMA22058315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17d143ddc46ff7517a69b1871ac17a0415c13b89c78cb78e3220926d8dba58f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBMA22034891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d4e27f6a8b6dc332ac9a8a7556c262561ab32bc9bae891c500416225241d5d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMA22013116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb4ee51a50f4ca1b5371803190923139076d21840fae730a0e5bdfbd4547c35. 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/GB2GX1800328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04aa652aa8ed3aa38a812ba6af0d23441c9f78c14cddcbfa97092f3c9218c87b. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-21T22:42:23Z), 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/GX3Q92188290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1b6c97a688b486576ba8f294aca530fd2b36190c2eeb1a63f47e0a4f15a4e2. 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/GBMA21819391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafeb5369f4866044dca17a8d3fb0a3e5f3cafb385631cf96aabade9435fd2cd8. 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/GBLFP1795044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200305855568c1cc8abc1c052cff74ebaf48da3f6549b8cc6e224a938de6d2a9. 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/GBLFP2060208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec18c7373a07376960ea6971d57bfcc64bdd4fa7d27dc114c4f3b78c7e9b82d8. 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/GBLFP2057247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df9ab5c77ee7c3f610bcc2567f09116fba01b65a748d59a85bb78e178d3e69a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLFP1781825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c2e2f25d22365a580f855eaa4046c5bd002c99667d294c31ba8fe6be8b2ecd. 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/GBLFP2057484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde21abe1727176737ff6e2b61f6f67241f7a39c05b2678b73a5778b2f7739e9. 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/GBMA22363669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23206497042bc2f160c03baf330bd83b3b57bc842431e798108c0427b530c00. 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/GBMA22498372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee40a731c682d7bd146c71062452ae9e85391009cfbdfed83a733d0e4f82e9d. 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/UKSWY2100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec0be3da71246a18ca3443ea3e3e1d8ddfe844cd62077939d55bd3c08520552. 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/GX3Q92108912.