1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x4022b111e922f6af15ca7e76bce6cf5834599ee05bf71d425f1bb8afd01a6c75. 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/b735c0b1-6dc6-4ab6-ba8f-f1f2467cefac.json and https://artists.proofprofile.net/proofs/artist/b735c0b1-6dc6-4ab6-ba8f-f1f2467cefac.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 → block OTSBitcoinBlock must exist at that height 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 0xef19b5aabb0c6ceef7c30f872ef5f8f2363fbb43fa7b65619b442f014c4992fd. 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/SMRUS0050294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fcd5073d2424a010db772523aa9eb6e3cd9711f7f3a0dfb0f4e709c1d2c2164. 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/FR10S1895527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8cc714a381960b8bdfd5439efad3886bd7bfd11fa554266ffddf61f64dbb5d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:06:40Z), 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/SMRUS0050317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd441b8229d0687247202a3d48e8c0152d0b1b54070245402d5b30256c8ee61ed. 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/FR10S1879070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe419aaad36c4074be710e9a4d9ff487d61ae1eea4acb4d99e736d0a90d250f38. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:41:04Z), 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/FR10S1879073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5619a3cb3070410aa4a74c6ca2c264f86c72cb90a92322a4f2355a980c5cfc2. 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/FR59R1859018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a79ce2920ba7dcbb5bc5d7826d08409f7d8f534334c8ee7ef71acccc411fc2c. 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/FR10S1945854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221313463a549af91d5214a9223940f10f84f78ba677cc908a4ef8a79565e006. 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/FR10S1945855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb209969b2228712b6ff98f9484b753a7ee8862fe9d299b0ea37af85afd48525e. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/FR10S1945856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeebf5519642db6dbf48e94727d328bed0a93511237169e33f6bab378e204dab. 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/FR10S1945857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f5ce66e4dc2b0fd65eca53fb85afe3618b6b3beef6c549c97e237eaeeb4063. 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/FR10S1945859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1049922a70c990824176e14bb29c85c4f93773f5446e0157f4796b0a8dfb2d4c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:09:38Z), 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/FR10S1945860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373446056245a67601763f73595b2b636b8844a206b877bb473a9a1e5571e2c4. 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/FR10S1945861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eab84f4312ac5df3eb6120698465487801fe5b5c9d96c905179095fe3ae2259. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/FR59R1917346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821cb88f708f138fb979eb0d7ec7213cdeaa5349d1032b78672bdf99dae9d1f7. 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/RUUM72000938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c013f475685362215f8423a934ac910daa2d3731f9c4ee1c7a479ee3094e54. Chain 2 (Bitcoin): anchored in block 957833 (2026-07-13T09:36:32Z), 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/RUUM72000880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411c248ecea060c41eb929894b5c8cf9ee3009b4049adffec9610d093bf0e765. 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/RUUM72000939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d9c3da9ca4280477d292e653289e013520164b96469f92bc7b2d120a742688. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/RUUM72000940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41a4bc0d22985b64c421fec38a12af1bd6f0aee26b4880b47d299dcda075fdc. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/RUUM72000912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8f4b834777cde82c6a5d8e8e47b223083874c433c74bfcc73c7290cfa712a5. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:42:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUUM72000943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6354a86a2bea4c17b2077a06f9ee1f683e34b946fa357db78b7c024d050d71d0. 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/RUUM72100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb029162bdd19af8625801a90e22680908f9a234ce0702e994dbed0610b98a024. 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/RUUM72100784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1585e117885f91158eaaa659983a1c51fac60bfbaf20ab41053203bafe8e4e24. 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/RUUM72100835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb2c7395b0cd82a4d19acc7e833c9258bd6db4ed03d9dfb067deba7e01f5b1b. 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/RUUM72101125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12b7683712220bca392cb52613bb85d83433b26ccaad970067b9b51a38c174e. 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/RUUM72200074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12e8658ebebea0e801c41b12d4e4b83e4186e85641d14290a2335360288f81b. 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/DGA052209062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3857bf6a839d074393c9098e9da5b2cb87a6338a69865c782faa01b40333ef28. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/DGA052209063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2222ae523a19ccf7f151c51e80bacc47b67c534a88777827dbbe478d895164fb. 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/DGA052209065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1d6435b5d0f4a67be95397620430b541f4a3c07e9e52262e7653025c5a8400. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA052209067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c01743d308a72ac4905eb7a0942b8d62698a0e5df2f36e2111f5f0e163c21c. 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/FRX762292964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796e9beae0f6c24b01ffc1566603373c4a384799a947732e044d35a1520281f8. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/DGA072210011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f8a036f38eaf2000eda9791806a9eaefa86c27beebe2be1e72e207ef36f252. 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/FR59R2362891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd676c2492354165a6a18c5f75acf144b633f35d0b67267050da6ce4b0842f165. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FRX202367605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9299751d971b76a7530f2007a50980ff9407b031732a2fca676a1f45c9bab3dc. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:36:50Z), 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/DGA0L2359644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd742fd229458e7d0a49cc8a0ba96a50edddb5e14ef3c1546d61f941ef7643fb9. 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/DGA0Q2374831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5aa839465bf62e4e790626884e975067e867a97a530874b58f082894551e15c. 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/FRX452440516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e93bf2174f421e1d549303846a5b72b5affd941e8c41b8ab4edb2a4f08cf23. 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/FRX201961399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbdf587708ad754debfcbeede00f4e27b125fa99e6bbb24748d6f5f7e39f701d. 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/FRX201831139.