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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee19de307eabd2d549509ac48f1664c3594a9b95a431383e000b90d4bdc138f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0438a446-eb96-488a-ae46-9582e4fbb909.json and https://artists.proofprofile.net/proofs/artist/0438a446-eb96-488a-ae46-9582e4fbb909.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfac6ff142d6507d25120e3f686d3de3d1c2828ece2ec48e8e595a9e6928eda. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:04:49Z), 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/QZHNA2082954.
A Lofi Beat I Made for Youtube That Found It's Way Here
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2c706a31e4ad53432eb91a81be0b84abe451694f22669298f6e28383e6d790. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZK6N2082199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d32d1b00efbf97e2556c0dbdb029359e8a37a1ed9a53f32400ad9636984a49. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM3DF2170839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8beb377ff83edab9ab9928b0c04a85315e68de220271c20075c0b7755b665d3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM3DF2170834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d0be43f0373dfb689d883312473b6d2be719e07d80d8a048a44df20c371e81. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM3DF2170835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff67559662544e13bd3d35c0eccbf8235b42525aa76aa483cf45d56ca55be764. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM3DF2170836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b30a3f04ef7c7edd50aa81e14804136c6c5bce3bb70f37af3bb536f736272e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM3DF2170837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec7a527bf855372f5221cc5b1de365d4710a8998efa521035199271c37b8014. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM3DF2170838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429eeb5091b1d151ef3031ab415b7949d55b3f3b55817c2e3e1cc461ade84fd9. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T15:57:33Z), 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/QZES92254523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e028a72047d458099625cf7f657a3dfdb23295733b766c7a56931a00541b9d9. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZDA72347165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8259a571ced8ce6f52e6fc60ef187f5d2f811b77a804b8ddfddcaeaff6e9ca. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZWFQ2322208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55bd3250bd367393ee4fb93d3e81f2bb205ebaa28105ef4275923a3c37ddf8d0. 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/QZWFS2449462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0edc64eb6a7875007732a5e80de7ae79d7ac69394ca0962ddcfa339afad379. 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/FRX872131641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7cef649feb106038c8254f6c49e85b87d482008a996d691c3ad526577a6c2f2. 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/QM3DF2205370.