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 0xae238b70c5fa863040b6c1afbfabbff93efd169ece698519f79880563f36e5e4. Chain 2 (Bitcoin): anchored in block 953985 (2026-06-16T18:03:53Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2dadf631-e8e9-445b-8ddf-d646e1d1a424.json and https://artists.proofprofile.net/proofs/artist/2dadf631-e8e9-445b-8ddf-d646e1d1a424.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 0x5d060abe36945915ad6bb0aa4e28320496f96520acdec1dd8b8002117b7f6ea3. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/MYLR10820743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a777b34c6fb78382cff49476cb9e000f3fcf6e149c52d0e6430ab8298007f3. 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/MYLR11421745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29743fe1abc6466bd096e5cad5de5a4763d552ea888a1ae2c107601176e5220e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MYLR11421764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d1fefd6c339a688c4b464a620ab3a16d920f3b607e3bbf108bd71ccf195b71. 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/MYLR11427908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a00993de3e355a9312d4e025f76febb7cb0de435fb6e52d9e79cbf8a0aeef8. 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/MYLR11421774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e0b25e4e6d9d67eee975fb6d9c21a6136015549179fc91d2e2389dd373d43e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/MYLR10820664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29816c14b516bf3e9000308e97461c9e8b008f34412187caad952dcad4f9e52. 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/MYLR11421755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7b623ee213fcd74731e3b570d3ef378c52c3026988ca6edf24f27110941599. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/MYLR11421759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c93ef39ebde562a72313be3abfa32f69cd3e060b969953c2fb4f22e4680cfa. 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/MYLR11421732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd384f8de420fb37d8aac5c384252371c4a5a2eb8d9cb7f7976fcdb86463ec959. 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/MYLR11421729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05458f7b75cc608981d522e7e49398c243de108e8b4a8cdd95d0b94fff19675. 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/MYLR11421747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efc8dd0acddc66b1f2944109922bf826939181f3a624ad1a49c57284928f750. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MYLR11421749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaeec84c6710d239d0cb8935f69ac9e5022a8a1ccf37928e67be36754e12abdc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MYLR11421750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59dbe63f67a83f77c848e3696cf50ee94d09fc44e7e206bc9c7357180c5a7995. 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/MYLR11421753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d81eaf727502c33468fd9081c7613dcc1e79b1bc0b6c2aedb2624da061d0626. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/MYLR11421763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d1dd2dc4dc788afbb8d5e5cc4a94ba48dff1d2458d7a2276e3c8e3b07a8917. 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/MYLR11421769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135cd9cf8d830524b28d9f792a848bf7ada9d5315a195d54679167804621fbca. 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/MYLR10820747.