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 0x89e8939cb3b7d5eedf0572415f0c0b09bf3aaa8c1cad9e72af7bcd0c34eacca4. 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/fc7d31e3-fb18-495a-88b4-06962b636177.json and https://artists.proofprofile.net/proofs/artist/fc7d31e3-fb18-495a-88b4-06962b636177.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 0x090b580537e4e6277c3d1f881c749e184f2c805f815d405e8b0974588747822c. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/EEKE11200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b3442e55b4441828dd2eb7f8f7bd41c05c2136752d0380319d5444d4f6e11b. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/EEKE11200015.
Forever Can't Remain The Same / In My Mind
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cf4c43975b68aec820ca4c86b63e432d1bc359965cb6cc41c04bbf74a717b4. 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/EEKE12000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace188d7c48228b384d530cbe9b40c3f8f7b7edb756449353fc151438ccdbb56. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/EEKE12100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1a2455164b5d822a202ba7c6b1cbbf0436bba9d3f37db0e6a52ec3fbb8d018. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/EEKE12200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e86d66bdd544c66357a9ce946450111c467661c68f668d107f32b27e4a49652. 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/EEKE12200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d558605ef6d12dc5d12c08edf2e0b44d95f8649bb043ce42f46c571ea2a216. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/EEKE12200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a850431d391aa53a2cef484ed0b49d14bb93c7cda21fd43f07056d2ac59e3f. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/EEKE12200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecda19678875620ae4b3942413543dc41981294a381a5fea71234568951df24. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/EEKE12200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589b9c48102c47ec8e046d3b56b4348bbd7a4ad723ac9ba162d0c343c10751ad. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/TCAFY2108925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41cbcf4b18ade837345132148d19568bf9b7e18c67a48da4acb143d3ee9fdd0. 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/GB8KE1859408.
Here's Where I Draw The Line - Planeet Remix
Here's Where I Draw The Line (Planeet Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d7b90ff75efaff20b08518a36488419219d74d61522bc9d74dd4837c283582. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/QZDA82407773.