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 0xcf3bb7e88699fae3bdf4a7af3e3ea47573f64792c557645d408655334c6e22c8. 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/b19aaa08-032a-498a-bfd1-10d992784b54.json and https://artists.proofprofile.net/proofs/artist/b19aaa08-032a-498a-bfd1-10d992784b54.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 0x3201443c4bd68733ff683d2836e9d3e3566212dc2e0f5dbb4a3fa35e50953a40. 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/TCADY1840955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25592fb486d3b25f1b1636292bbec666a19ea00b4f58d2d72dc1a804461f918b. 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/TCAEA1966425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75db4cfa40762fc66d3c2d897fc8b61de7b63f56f880f22095d26279bc218c82. 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/TCAEA1966648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5def556ce31c8c988812aa7b32cf2f041b085c5adb39992b5bc734d9db5e094c. 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/TCAEB1947459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3118bbe223f0c29d158f62833203eace9cae07614c8d44800b5f3e1777f5a93. 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/TCAEB1947461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5938baa3376e011f86b7a8899546f50b7963c7a9fbb37c5005b9897d01ebf738. 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/TCAEC1907622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1a675df8b1270ebc1e27461c5627f0ef1c14aedaf77b8ec6c00b8c9925767b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:43:16Z), 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/TCAEC1907629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38268b9b86d8d566ca5f72aa368a8260c666239baafd0d0817678f799e5e779c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TCAEC1907635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afd42042f20e709280a116617d74a1183bc3fd0b767f8ad004343d0c32a2f24. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/TCAEC1907636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8cb28680dabfcef6d124a9b9be7aebaf04baa0049aecefcaabe26892d1dcf6b. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/TCAED1922890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29da0770847965f7bcab22842255aeec25fefa2186ae276142ed48adfd29ba1. 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/TCAED1923008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35af1f2cfbcfc440a197580d4e6d0a01c164b8e4ebeb890b9bcd4ba1ae2b2e10. 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/TCAEG1968537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4caf63dea17e3c21fa06a767174aa61ba5ae103568bb1cbd2be6c889042bdc. 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/TCAEJ1907586.
Kathiravanin Kathirakavum - Thileepan Anna Song
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed0e7e29d95857e31f77caa8b37da4a3fb2f83128dd0d399aec5b61be53d076. 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/TCAEM1914826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916a36df01adfcef5e26d1cadbbed4cbd34df9e2704a04676fd4eea146c8b661. 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/TCAEM1974200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ff179055c7b4e6581c05ef7500bf121e13aa505c164e995e5b56bbfe288860. 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/TCAEP2022224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d63c70454fd823f5e5d6ab5ac215c9373f68b7966a179a859ba7ef5f9d8a134. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:08:58Z), 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/TCAEP2083304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7429dd7cefa04e925a8f3a3dcec5c4d38a9cc2540df06b346a62f95bdffb5a22. 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/TCAEU2034435.