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 0x6f3282036e766a7ec1525d2d90ad669a6a3d43dbd8cf8feab611016c2af47f9d. 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/e98a59d3-ad11-4703-99a2-9099a8f8710e.json and https://artists.proofprofile.net/proofs/artist/e98a59d3-ad11-4703-99a2-9099a8f8710e.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 0xdb2a6e93f51a88afb3d75bf7966e26562bcab276f5340892eb1b56bb051202d9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBKQU2007827.
It's A Dream - Ricardo F & David Oleart Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65dfa12c48d7681cd98e1903749acf07d36993efe2c6fc3989e3b198a06a51c4. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/GBKQU2007828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3f3d6c55c37a76f7860de676b71944e5caf8b16903e4d0e1bde89582533313. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:41:14Z), 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/GBKQU2050637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0ba68a00aac66dbb54f3155275cf92209d4b625d7b8db820b001cdbb737067. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:26:46Z), 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/GBKQU2050638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aeb2070ac3eab55518da37b1e6ee5ef3e90d63d7be53f111e944a293325b6bf. 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/GBKQU2086399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd155c766735b26d6a8103478c7b8b8c76fd336eea83f8f31d9924c4803e66b26. 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/GBKQU2086402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32010a1d90becb736b15806c77e37d26758ca5c3e16e7c172c9d2ee19a0b0017. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU2086409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f08f330a7054bd3698d5fd37bc54212dfbfe5c82dbcda87ac03c14467184d2e. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBKQU2086401.
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 0xee367d6c7136508d83a5f2f97c7c1b2d8ec80c56cb7b95de6518d12b447108e2. 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/GBKQU2086405.
Happy Days - Markos 13 & DJ Ruboy 2001 Hardcore Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590379777775bf28e3ef009f0286873ecab283ac22c12b893ab2093285eef09f. 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/GBKQU2086407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc18d5e896fa1caccbfc6fd189553e64457c53a853949426e4bcc2ac5693be55. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBKQU2086410.
The Promised Land - Object One Vocal Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6059dc54a6875aa6dca4538d7f9bec6b381ee8a7dc3f2820f5f2bec86fbe08. 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/GBKQU2257210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf532f3ae921680d1426ac16d4131ef899a9bff114606605c1a0c5724aaef3307. 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/GBKQU2257211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b808f8517697dec9756299f9000ea15dd82c1e5bac3cb4f363ef9a4b3bb26d. 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/GBKQU2257213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635f31c6fd11d57bd1740d30afe8da408e93b7f068c54d0435aaa2ac7734ee79. 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/GBKQU2257215.
The Promised Land - Progressive Live In Brandenburg
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353dbbbddeb10492e0ccbb18b1c3c825f4961222f34157d667844f920512b5d3. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/GBKQU2257212.
The Promised Land - DJ Tibby Remix Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119ee6810e272ad75f57f561c69d87f249dd5d3bad490f0a6802f5c77c64fe36. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBKQU2257214.
The Promised Land - DJ Tibby Remix Single Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801ea8a4985d0b2210d96dba2968bbb97cbc9a87d33403c56fdb2339ae050fcc. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBKQU2257216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5240fb78864990f69fb220cdd7dd1fcc136345513e4e8278265dc4a6c4d59854. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/GBKQU2257217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe587363238a8e85a23a7bda8de2c6b8dff75c5114a98103e412aa66c746b4034. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/ES16I2500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18d77949a7510b11c5b189285159d613f90823c743195898800875d78841db9. 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/GBKQU2050635.