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 0x16a99d1a54924623a5426d155ae5e790a594cd0508a6caad3074319ea57b0b9d. 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/3071bae2-70ed-4cb3-9d80-ba2c0eeb9c2b.json and https://artists.proofprofile.net/proofs/artist/3071bae2-70ed-4cb3-9d80-ba2c0eeb9c2b.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 0x370143c6a0a6778255159285b3988f13ea33c7efb231cd11bae379472e20a61a. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/FRX281727779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d64d39b6c94cbd58b71cce6791f8364da32de110539cec10940684d12c1e08. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/FRX281729118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c8e7ba8018274ea3a146d36cd1b483673eacc582aca1a3adc68f13068b7cfc. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FRX281730513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3cce7ce04c8c31449895a1a4367b5fb96ad9d4d55115d3c64ad8ac5e20690e. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:05:14Z), 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/FR2X41866676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e229c138f7314381b1e4dd78caab104b9552520c65b356dd9ef013b7052f8e. 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/FRX202160972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c65608fa085fb7281e4afb50b5ce85c987d343776d9f611a8b00b1b8ca86946. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/RUAGV2408793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64fe9a4f5418272d2a4b6ebc574f80f5aafb94e1f25995a42d1a647e7ba255c1. 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/RUAGV2408803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316b0f411890edf9d0ae676e22817b8e7114fcb339184acde7f5f5030f46c14a. 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/FR2X41866678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1e6d0b47ac271e492476bb5fcab439c98fe632359c713e8786d1d6fd99150a. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T08:00:34Z), 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/FR2X41866679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1b6de5c7dcd59f9680e7696d29733976d5d1049819d500cbd83e3068e9c7b3. 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/FR2X41866681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a1da825b9c4a6d6e4fbbe8d341aabc8c69b692f55e6cacf64d1349a7248636. 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/FR2X41866682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1632e9ddbb198b4ee952ebe8d4d7c6fc15a5041a67852a0adc1882a80b1d0b. 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/FR2X41866684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7165f1ef22b558800482328ca22a315cb899bc937353aa3f2c2b886cb35633c. 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/FR2X41867104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f5d0e4c3723e6e6d1b3906b5ffeb7e6b8e392c39593f05718fd14b3620f9cd. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:20:19Z), 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/FR2X41867105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6bbebc7dee3ce305475b07cf2b631ed26099bb99fa626920e74d77a209aedf. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:21:01Z), 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/FR2X41867106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca27f03cfa56c0c99e5e6adddce03a99a2f0323cd80da80dd07e0cdf92962f9. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FR2X41867107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43860719c135de5ee26ed7ea12041461400c8c816ed245726c30cd0938394ba. 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/FR2X41867110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf321d5858b13e01844b198947277539ce78534a50b127671fba8731599ab2f4. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FR2X41867111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe290ae9af7047513886b46a80e1259f1ab98c262ed5d6bbfa2ab114e46e7d6c5. 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/FR2X41867114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9164ccceeb0c1407dbc2a18c22eac36d8be5806e08eaf59cd965a462960a7048. 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/FR96X1917820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94cd108c768e850ca6b3c1f70da474eee4a0e96e91b5a61b0858621ba8ba6306. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X41867098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x528ae0888c2c429f5002a8e2172107b3476abacabff372308302786d3385abdd. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:05:55Z), 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/FR96X1914615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c0216d60e3f01a04c9ff4494b4864f476985413c329ddbbc4a54681a4c1fb2. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/FR2X41812792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467993acf826f21b930e91926710673da0ee874081025e40e9fd75258c24dba3. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:44:58Z), 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/FR2X42028108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1435ccd0c714847b52e0dd3d7b38a2484e92d70b7dc36decbd55efefb2062e98. 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/FR2X42028121.
Лидер Отрицательной Направленности - Intro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab1db3d8d098b40946f1c118863edae805e169f3a2529141680eee78aab0853. 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/RUA322205577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0177606a784eda179bc2a97840bbcca9ed6789480d047b578830bc8e0a7e783e. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/RUA322205578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdae203bea8e3c432bbe282fcd38835c40f52abf82d9910bd6795fa93073896d. 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/RUA322205580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc614b2e914667472d8822d87db46c4f51b5fae19b130b1e495e93bd11ba9599. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/RUA322205581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16962dbeed920c3e9e77a3a50dd6f436f12371dcda34b7c6936b4fc7da7f8e0. 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/RUA322205584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281ed56c6b4a0414c397bb2fb76d39335448beb5a6c825fb22ffe38d19c1a6f6. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:43:50Z), 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/RUA322205585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f3d010544cc06592a9da989aa087ee820a2648c699d732077a1a3215749898. 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/RUA322205586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906a0ab822f517c71e1c41995d77393b01ce7200cde12eec047d4bd9f05e6a76. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/RUAGV2301956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c0b9aa107389f9fd992b31fd31910ecd18599f2d614b2f4888d02ce74d5f83. 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/RUAGV2402566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783edc85c703a83d072f01902595d0714f5602a71a2d3a8580e94ac8182fcea4. 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/RUAGV2402570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a2eacd34d0c81a1d68b65fd701cac89ff9889e6a3189cd9d856c505359629b. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/RUAGV2403838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd939980664883c35e7f666f1f4b463d97c176ceccb80fd703bbb069a14722040. 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/RUAGV2408968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95dea2444cedce48f65e55d70c85964a2032ae8e21527aaa6db86df0c7b06e4. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/RUAGV2410300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000bd86b600735805e2c7d4ecdd8acf9008f7fff2ccfb59cf17e849cfa0c6ee7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/RUAGV2505450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293ba7b8900f269189b286498647f9e9d986e942d8d87332ff69e772980cce84. 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/FR2X41712035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c7d3aca708f45b53eaf19639b5011ae496a016a5ad47b14e98493e070cd5fd. 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/FRX201644565.