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 0x1bb9de9b4003ae03e2bdea4c08f9578ead389f80bda390c95a4f2181ced17dcd. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f943e2be-8acc-4417-903f-bfd4ac8cdb08.json and https://artists.proofprofile.net/proofs/artist/f943e2be-8acc-4417-903f-bfd4ac8cdb08.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
To Myself, From Myself (Live at All Saints Church)
To Myself, from Myself (Live from All Saints Church)
To Myself, from Myself (Live from All Saints Church) [Live at All Saints Church]
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 0x7c29a87290e0e347635d2f08182e4702f97e5095df99e5ad2d5d22a5d01a3da4. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/UKBG72500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c29a87290e0e347635d2f08182e4702f97e5095df99e5ad2d5d22a5d01a3da4. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T19:04:05Z), 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/UKBG72500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc1479980cb2e34a6c23344aadc48a76fd13ade0474fb0b2a1c3d187b554b9a. 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/UKBG72500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c29a87290e0e347635d2f08182e4702f97e5095df99e5ad2d5d22a5d01a3da4. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/UKBG72500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc1479980cb2e34a6c23344aadc48a76fd13ade0474fb0b2a1c3d187b554b9a. 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/UKBG72500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538a01a55aa9141ecf85c8cfaf4ce296ab7ce7be593abcbf3e02c41ebfe57b09. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/UKMD42500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66af1697d0be46e605a0e083770dcd2f1ffde6c0473407a8ccb1b8a8b28d394. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/UKMD42500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9cee5eebf7e6b819bc0a45f312f29e61bbc411313af9442e3c18266cbb81ca7. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/UKMD42500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46a9615f37b0649aad93b2b0c53416fc8afaa727b130b9d3cf4671e34bd9f04. 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/UKMD42500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b65534e277bb311c38c3147042986ea55f157da3583b5271b4dcdb26d731c5d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/UKMD42500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2926fe1e8e43cd1c98cd0844d6bdfdddfcc30a78894d7a0703b3c1a8d23d6d8. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/UKMD42500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c7dcbd201fb0f12ae19ca2aff28c937be35f4de50606b98944aa43c6b2b551. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/UKMD42500023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x159305ff37ecf6a926d93b0d0df17ddbd07807dd919c353d9cb8ec270ab5b834. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/UKMD42500024.