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 0x7729693b2f6328c51fe8febcd529dcba428ec815a77af959164bc335effc5402. 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/df83ee5c-670a-4d91-8dcc-e017ad4e90a1.json and https://artists.proofprofile.net/proofs/artist/df83ee5c-670a-4d91-8dcc-e017ad4e90a1.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 0x5e51dcc714b123d78cea7f126ff511a26abda3b9d857fca6fa0f409ba3d3ec64. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:22:24Z), 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/FR96X1840747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dab23a29c67ee3885e5648b7d6eff7553c88df5b2729e1374a8b14a505fe78d. 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/RUA011900352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6edad5e3151845dd9aa4f10e1f5aa878f0f28c95195fc5c9443bda7591f6facb. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:47:50Z), 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/RUA011900494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2abe8fed662d50597d850bd08f05d8a32b961babce0c9fcd27009aa0abbef9b7. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/RUA011900499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d19df045097b3b71b10361e3a48ced85faa01956ba694ac3166e2f4014ae7a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUUM72000374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2561b6e0ac112b904794d76b084d08238df41cd80a2d566cec5a6fe45b41234. 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/RUUM72100567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb52fd5ad57ce70fccd5465f56b00d853689d5bd740cbbe2afe0779c515dd27. 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/RUUM72200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90e2ea1df732dd22750201e7938a9c46e46a3ebbc465dcedfee02c8e85eb690. 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/RUUM72200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e43e913f863a13e15eff36c33353b4803ede333b183ec03f9fe867292cd9f6. 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/RUA1D2226840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8c47a08a92a73240e0a84b24f9057e2b39bd8341aa28684d28113f96ac5864. 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/RUA1D2226841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92aea26d992457d78f71c260269f6adc61e73c3dda25131e5f78e1f6e661f4e. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/RUA1D2226842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeef4562a65b722f720aad94226b29ab3c8f1489606268933631c87c89d74cf1. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:59:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUA1D2226845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966275de9dea0b633514d995bf849b3f0cdec14e03b98a461f878fe59cbb498f. 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/RUA1D2226848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f04150101d0689760e064d87356baeb5777e83c99ec535cef78d8471ea43a6. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:55:15Z), 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/RUA1D2226849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd101aec3d969ac73df712232a8b5e8cbe53275904a69261dac8de186de690840. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUA1D2226850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ec0ef253392875babe0c5f38f2a45d186734047774e772878c9eeaca720f33. 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/RUA1D2226852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677f764af41538868d1c64f8ab30b0f9812793a7d3c33eb802ecf551b306f485. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/RUA1D2283683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c28569c84dc96c437865b7f48968d8497aaa6027eeaca0ba42622a7578ed0a. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/RUA1D2325082.
Путь к праотцам (prod. by FRETTYPOOL, PROOVY)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3039900d25207548b9ab284c018cb1994ddcb723c320b9685707bfb9d8cd3b7. 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/RUAGT2324584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3100283311b1e76f13f2a67b455079546e97475349f0f6236003b9ebd332b2e. 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/RUAGT2324586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad4eaaf5fe5b970ab4a82181986a651f9ac3ade2d13581573f166f3314f87be. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGT2324588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58aeb88b607669925b59bb7921733a412f7610a5f581aa3a6c05e3c2c1ff3308. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/RUAGT2324590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33210ae23da7a6b6077b51cf11b7d5f910650696c10d962d7177b5f0360da2d. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:09:40Z), 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/RUAGT2324594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0552a5bd179b3f9f6dd38ac9e7ba5d901bad91f338ec75a6fbd48a3c0b402a96. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:38:27Z), 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/RUAGT2324596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c098770cf6ff3093cbe784a40f8d0a2f5f0c10888dbde7651c290697f7f059. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:09:28Z), 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/RUAGT2324598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf963552922e1197309450449c8a7b386a1ed6e43d6294a064c466570b6246931. 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/RUA1D2389466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdefa4b851538cbace63c081f85163334d2882ef9bb7a7bceacab6fd61840c96. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGT2308066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804968812b27194c39eb06996e16fb751a50c3842c07e790b029897050615c2d. 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/RUAGT2324604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9642bd334978eb43a7a55d05174f96c5f3cead2d5c5bf46f3ef35fd181657987. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/RUAGT2433589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6fa0cf847de6ff41e50a8c25656a4cef4062a029bb6b6d8c3974b0fedaa37aa. 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/RUA1D2581970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44c7362c971a9bdefa7edb13e6296a0b3cdc0420bc2a196199f851ee4089c48. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:38:41Z), 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/RUA1D2582841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283987fc74c48344284e7d5a0af3dc2aba050d4a1a17b2b4eace88c59a4cd82f. 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/RUA1D2582843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116b305e142036967a4d7afafd50af1f4ee792644e1f05da2180971c7d750fcc. 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/RUA012100667.