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 0x0f19a855d04d5e11e24b01d09f120c42bb596b06b006b0071e70ed869e8f481e. 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/9471b0cb-ef23-4f85-a433-8487accc6cda.json and https://artists.proofprofile.net/proofs/artist/9471b0cb-ef23-4f85-a433-8487accc6cda.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 0xe01015bc035acf7e5c4baf9e9e8bda01fc088cbbc0871782e406c34126ee5b2b. 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/DGA092372141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a9c823618618debafb222e4e5d46a4c26cf8ab3bfd94028505b6adcdd2ceb8. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:41:37Z), 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/DGA092372143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8350d7867f9cc609ed68ae706285d7786c7ad223137e1a10cf5bee347b6a33da. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:00:08Z), 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/DGA092372144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5ea9509c97abc87edce2910c48bab4c1f091795fc5e88c54bed1dd4b28eec3. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GRPA11900534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72a008e2c937c68d531aa6a15a15d546411d47afbd7aa8e095a73deee57b203. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/GRPA12000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2db2805b7630681040c59b0b3cd7130a858eb9fe03c7294343918d55b1b102b. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/GRPA12000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2dc3725c8b9f7c57760e2d9975f0f53271c17bdfeca7288279fd091d32ed18e. 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/GRPA12000245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe276b07b9c4215bded4c05cb0b625c5a0ee179398a548a322a29b7a84e623395. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:39:23Z), 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/GRPA12000259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35568e3e8d318c0fa1b0cb1933641d47e7a4d28070af60f82d2b95bd3be5be92. 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/GRPA12000263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65f2f508a5328405e14b189609f32f0d1e40dca560806b3491e0d7c2a8139a8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCAFU2105116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1aa0ed5cfcdeed88ae554b71d9ce3bf22d20bca47765dc9cb57e5202f99534. 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/GRPA12300099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f5cdaa3b7b612501f6089f378bf658e63c0d2746fbd181be34b66cb58244f3. 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/GRPA12300218.
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