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 0xdea8026e8a8cd3610b242b86f0f4b81f66592155d4fc72a97e469bd48895eaf7. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/911175c5-86e9-4ddd-860a-91f771ffec53.json and https://artists.proofprofile.net/proofs/artist/911175c5-86e9-4ddd-860a-91f771ffec53.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Through The Windowpane (Live at Reading 2006)
Through The Windowpane (International Version)
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 0x1eca7ef0be81d92972c0778a7c0e22138298c9a7a90e4c458d56241508b1c0ed. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/GBUM70600749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3691c0c5d5a4afdd9b2bf3b322fb23fcb97f9f23b2e906fd1d7b3f69a37caf8f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBUM70601415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512dae94d0e373640fb691bc096450cd8a7377de68d6b805e41dde36cbd07a6d. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GBUM70600742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce73963e68776dd75b84f4e18df19058b90461a68162e13fc112388a829b446a. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/GBUM70601413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3260d7a2a31e2da4445f3d0425342f3f9975f5f775dbb5c12367fefa774621. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/GBUM70600751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563119cd02581e9bdbc704dd8edba2dddc3deb3ef8ec1b43c256c4a40ce35c2b. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:37:11Z), 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/GBUM70712752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81aceb3a6246dde779b468ef26ce15047f3f48c867468202c3773a713862bce8. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBUM70712750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c68b50da23b2fcdeadc8ca403ae54376d61c6a4a0287c43e3f16b34499e7c1f. 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/GBUM70712753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c25234df6a53488ec54e8895d2a9e0c199b774e472e3db7f153a002f676896. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/GBUM71029387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ae28ce51723b55750b2ebe1fd421ac8cdd8ba2fe12c6df47c8fafa95b1b4ae. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBUM71029384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dfbf5c1530797269d6f599d5eb30c6c7e2df333ce23fc0ad658948a02ddda2f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBUM71029386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dcb9f8a6443fd65a861c0550c0b589b5fb2594080e964e8136b0481bd0c2b42. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:26:40Z), 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/GB9GM1200025.
Beautiful Love:The Indie Love Songs Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd2c330960bdd34e7156d468a712599ea4cc0b24cdb1a4d1ab5d90cce25034d. 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/GBUM70600747.