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 0x5fd15aa709d75fc6d90724757f05eba28936760fcaf72ba04d21f760b319b1e0. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e52e3b95-4638-44b9-bfbe-64faf785460b.json and https://artists.proofprofile.net/proofs/artist/e52e3b95-4638-44b9-bfbe-64faf785460b.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 0x164b0da522b7623f13a38acaeabe68899d63f1b3259c94c1a6ac32df982ae309. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CA5KR2168163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7494937dc2e3921612d243e325fdef7aed543b331d3346c18ed2355fc577c90f. 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/CA5KR2168165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3246bdb8d9268e28d6318f4a05d6536f52a27614a8a2e87cf6c853a09cdce437. 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/USPO10500068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcbe8b4faaf88bf7aed53a5d5f03afdd4148fd9e77fdfd66057a8757e2b590c. 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/USPO19850064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd270379fef79d697e3696a05dd5428645bd98016d3d94712e2c9e64d1062cbd. 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/USJI10300602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e85bf43d5762bd476f044bc854a771d4643dc01a3efb43e47f4014ccfaa1b16. 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/USPO19850087.
Take My Pain - Edited; Feat. Master P, Silkk The Shocker and Sons Of Funk
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d812d91b59c3b3250b1714e62ff03f1d9aad1ca08e35a2cd4bb093be59422d. 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/USNL10100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9749d08d77918948505e02a16a92ac618f03b72490dd458842a251795a988aed. 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/USPO10001122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1babb8f5f2fa6e928b8dae4ef26c88f0110f0136b79d62cddcf50137b371f1c. 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/USMC10110610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f142e95c2e155167f5aa3608d6f5758fcace70fded114ced43738201a5e12c8. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/USNL10000972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f456cb234d66c87f9d544c14634729a69c26d19296b36ee2732e516cbcfb0b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USNL19900788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122ac85cd4338c49aedd381ea32e3c5b4bf69c2e8da5a9ca4a14798fe4fcb3be. 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/USNL10000895.