1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50fe6539d8e001e2bb3f0a506a88383701095f1d655776208f8efb0c0f3c1ba3. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80d42118-97c6-4252-acd6-b6552882d47e.json and https://artists.proofprofile.net/proofs/artist/80d42118-97c6-4252-acd6-b6552882d47e.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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f6fd74f98dddcb8c89bf2d6b3fc58a283ffc3b9f8461e63345ffdaae9c83f4. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/SEYKU1300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ab023adbedd7156f1baef1c30098137c07e28e26d63eb78f4a2394efa66ad8. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/SEVUJ0700501.
Essence - Acoustic & Alive, Pt. 1: Soften into your Soul
Essence - Acoustic & Alive, Pt. 2: Soften into Parenthood
Essence - Acoustic & Alive, Pt. 3 (Soften into Humanity)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b7e62e0ae9dcd30e4f7134aef47b10519f025a3f009a053c875c6ceda28b3c. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/SEAAA9701050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ec5bce3454171b13d22ef585bc50d8da77d5af6d020b3b30a6234cc2939738. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/SEAAA9701110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66ed6a9bea479f8391c8df3340268984c90520985276409229b0daa73e5dbf1. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/SEAAA9501011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e82375240b3a593c75f62195ac2355031b40e639180175d831496c6fb43f9f. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/SEAAA9501031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e2ebc6be2a1b6d70ac76028fe6a83e8b5667fa25e6721f756ff867b6adf38c. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/SEAAA9501051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c3ff843f7dc5ffb34f2081717dff41195f40bc39b054ab8c0118980652225c. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/SEAAA9501071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449fac680f563b4ee1566b7a5e7c53bbb88fd1ef746d3222ccf28718964d564f. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/SEAAA9601041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7810f2c469751fa2843aba4446654c980961e072b39da6963b824d4dd9a8bbf. 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/SEAAA9601091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720234cdf8c43a7fb4d5dc2290f553d7322a65ab30e660c456106fef9d51ac7e. 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/SEAAA9601111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61a44346a5e151a67c0adca2ea93dfa084b1e779f76b6ae5a9ad32590f2ae64. 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/SEAAA9601131.