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 0x188a1bdaf54561fe89de3af0120b2daecd56bfd837606bfaa0dbd6c0b32454d6. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/25e0595f-bae6-485e-86ad-d43002be7e0a.json and https://artists.proofprofile.net/proofs/artist/25e0595f-bae6-485e-86ad-d43002be7e0a.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 0x7db92a159cb91fcf11abfe2bb215e21106885f033766e5e9a06d2056e40b800a. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/DEEN71800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9ec2f83ab4ea1f9130d7839a5ab44ae26018e4562bb34bac9a7c58506ba08d. 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/DEEN71800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491436e97ad0ec34ba25ea6c787ef63b08d4390f5810ec5485ae2db3c282b5a1. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/CA5KR1513358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90070af65e4829d16f4e5067665187fe33de20ae923a0fcecd6709ace9d76562. 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/DEEN71400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e37216bc3b51508803b88157d4f3265f647414e6d77774df67a7b4d3eaad9c. 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/DEEN71500059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552fa9ef4d99c087a2404d80eafc0fe41f149b05ec3c3ae311466bd87baecb87. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEEN71300088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ec87429f4e7dba0209385eaa26b023c12e8c615dd007f8038e8fb72bd790a6. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEEN71300093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420796dddb96775f77719a95ccb7c52fb87e046a2c2e91ecfa8b0ccd2e2b02bc. 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/USQY51291245.
Revolution Feat. Hypomaniacs - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6b166f0f7f0b071ffa080d46be6bdb8298034c1ff815500f79f9fc80f63873. 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/US8DZ1201054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566f9aa73af5e4f96740c5f0718bf29871e82396f2b603a6b5225e580d952608. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/US8DZ1201058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db3bad9b8805d38f928781fd3ff2ffa1273f69d7aec562fd1c8fe4449298d81. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/DEAR41236587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ecbdd7281a52aaf024a0a7f36e1a45fda8bb28e9d9f8ff1aba5039c34bbb9cb. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEAR41229577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbffa76762545054de7bca72e5f5fe4ec3fa9bb7fb5628dbc9c9e276842f5e68d. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEEN71500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ea51267fcc4cc9a8e9f84a398e03ec69db3e41380e88ea31ea43cb8546a3d9. 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/DEEN71500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7752a31a27a6876b1c7c791bec9570b946558c7a1e7ebf742d62aafe7308164d. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/DEEN71600063.
Bestowing Grace Upon Others Through Creation