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 0x244714d8381a0dfef85e20b6179a8928b3409e3e7296b2108d6ea2ddea4cd8b2. 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/088e4672-7b05-452f-96a0-ff3f24c819ea.json and https://artists.proofprofile.net/proofs/artist/088e4672-7b05-452f-96a0-ff3f24c819ea.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 0x056711b1e663d91bd828d68257405d982fa670685fc2484873659e22f919dc36. 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/RUA1D2509799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392826496369eaeec9f54cb9557f5acca942407e6e848443b926bc6abf4a62d0. 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/RUAH62402554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf729253313d882badaf536dd8ee231aedae90f65da2621026c6920dd94a8002f. 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/RUAGT2469003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33b31efafcb6f34f829a15c52ba36c9b92c83aac22829e7569e524a2b7c20a9. 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/RUAGT2417863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75b7bc6918e4ae93296708ac5c85d1dab480be6ea07c51854bf3636d8df8091. 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/RUAGT2401294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf844528699cfc88a55db086bbb65e269d5a6ff9e6209f100f71daa7e69d1a3fc. 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/RUA1D2477114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d3749b502f145a6c0918b830f9455b038a6f451eb272c2c137bc8adae5588a. 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/RUA1D2454101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdfd81a932fcd53be1df12d87df814c4f78ce3f6a2986b2f195416868fb980bd. 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/RUA1D2441051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa866196fc9a8fb3385bdd20de8b6d6077f758e2de32508f7dbf06686fd61ed9e. 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/RUA1D2429645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0750e3fcc5a842f2d989c250521193247d9c588d4ca1d6ee8bc3bf1dce584ed8. 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/RUA1D2409637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ccafc94c0c078325541688a010f8f696e56ddca786cc6d11239ee48ac03817. 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/RUAGT2365599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762dfab025a8fb6c720915d5efa887b08a93f14d8c1bafafcbb4dfcbf4ce5ad6. 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/RUAGT2349745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143867c35a1b68600eaa86242f09ff25b46afef02c9fe5675b261bf71610ce7e. 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/RUAGT2324612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072c7fc5cc07c9bc3412a94fd5a5b2c53ebfe144a018620ec730c8772dbad081. 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/RUAGT2302840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb8d805c9c08f3e7dadb14ba47f5fe8f65b0950db11aafda73de15b4339ae79. 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/RUA1D2381073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d231f698efd7b1ba67c72271cdcdeb4808d3ec02e9eb18ebc3c911275f632e4. 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/RUA1D2355227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3858bcdbfc05cfde8e5152b301fed5198a0d60a76d20157a95f603c12eaeaa4. 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/RUAGT2207717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57358c9d7fd8c233d8473e69ceb4a5b18078ea87abb63c46dd12a3768e712989. 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/RUA1D2296890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9905c47d1d32eb523973b24090a550a93915e8bb115d1334a2af7e0fca5dc08a. 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/RUA1D2242244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41180c9e29f625a63dd70e413c1a360d647f4fcbc913296852ea3afc11ec0800. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/RUA1D2239368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088fb19c53f5628ca7d1e0a46c5b01842c2a5c20dc06cd898a8700796cb937ee. 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/RUA1D2204990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460b415c0c5d73f75424f54f28a146b4ba8eb74b222e499c8ae24764148b46f0. 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/RUA1D2165082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f71f7a298d1f0873ff7a647b71d28c81b5bf9c5756e55c12b1f61b30da4d04e. 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/RUA1D2161533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2156d1977a6260c505e3670ecf8a7ac21d4b3f5b9c9088b2858408cf43210136. 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/RUA1D2146998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9dc60bff2aa373e8c114b089b465d84fad6cd22184ddf6987d066c0ab66bba. 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/RUA1D2135416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524c7d8126970b5a2dfd1ddea0f81e9a810609cddaad55a574c0c531211a5f3e. 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/RUA1D2119884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab70b1ae26a67eb78c0aa969db32d789f7ca7314bc63ee3b7b73969b0861d00. 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/RUA1D2105600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ede5e341b1cbc92547c8f1608f531807a40e80b264e815e63568750fe1e5cdd. 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/RUA1D2073815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94170c57673c9619939109f89cc1254bce710f2d5c9a7182ff7d76ae6dce6fe3. 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/RUA1D2066535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9953b76d21a521870384a80667f1b0ebed859b240c66ae9edbeaf69b7f0e125. 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/RUA1D2064587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e210e6edc25c8d8b7fcea0fb732323c628f102e7bce8057878c3361964d46b. 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/RUA1D2061256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac70c40f727e6b99e121c58a7e034ec7e66cf60d3a730ad37d9f30f52b6a481. 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/RUA1D2036013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad7570f6b6a68d85bf3218daa1d9018a47a09d43f947bf75aac59ae0a482d59. 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/RUA1D2030905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5759a0aae47293021d0df4e9223df25f6646b99853f80f646873e688ac7fe45. 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/RUA1D2015958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3943e17080813ad86911030c707b4d1f0fea2ab4baaa1e90a4881eee5f4f622. 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/RUA1D2014110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84f21b735c243e6187cb5c60d9744713bd0b1c7faa024e6db7423197805e334. 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/FRX452032060.