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 0x874b88e14640cfceba6d2b908ec61b663bf5c051bbe6d075636ff0ca1247c2d9. 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/76e6abf2-666c-456d-8385-abdb67b7666d.json and https://artists.proofprofile.net/proofs/artist/76e6abf2-666c-456d-8385-abdb67b7666d.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 0xe013b13cf747fcda424acd9cb51ff3d9fca50f232bb54ec89c38c21d05a8ba90. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/BEUM71100341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a414882d5821ea4da3baaa0ba665b388bdde9f1c0ba6075d3a5b305b19aa64. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T07:58:56Z), 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/BEUM71100345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12474f5fc92ef0652818fabc5d8f6cefdd09bcc53c2693b9456de17b83cd516. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BEUM71200327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b87804b39b184317ae8e94a20ba5c91382669c45b24a1bcdc5d583c73a0215b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/BEUM71200326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188288c7e35217a65b51ba3f3b13da01439675e473d0e91489848831ff201564. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/BEUM71200325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb382e8feeeaa9f8b41e032de146dc23923a472831955ad15b2ec862c9f85086. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/BEUM71100338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcab146cbcc092927fd7583c875f8a3bcb496c2c58cdce8c8c5cf2816def35bf. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BEUM71100339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12474f5fc92ef0652818fabc5d8f6cefdd09bcc53c2693b9456de17b83cd516. 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/BEUM71200327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393d747b6b786aa12bc79c3c2753fadb3bf7f83f38fdf8915554d521d571c016. 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/BEUM71400154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1924ac94cb51b5c8cb9585fd1654e2c47b9ebab2dc5baeeefcafd3d065ae651d. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/BEUM71400157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27efb545e1cdbf33c1e83b8e185e1e15a3eead48464946a8cc33fbdc9af22ef0. 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/BEUM71700082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf44e895a32a830bdba71d722cd584ec891544eb238c7c02c3d07c630cde0a3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BEUM71700083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2feca3d3246aef65fb84ef48dc518b4017e0b2ad2c1c5300162ab8732f2150d3. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:47:29Z), 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/BEUM71700085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f6c7cbb16c257a39fc6c87b2fe51354bfcfc1229e248dbbe520f3620425620. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/BEUM71800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcab146cbcc092927fd7583c875f8a3bcb496c2c58cdce8c8c5cf2816def35bf. 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/BEUM71100339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188288c7e35217a65b51ba3f3b13da01439675e473d0e91489848831ff201564. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/BEUM71200325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b87804b39b184317ae8e94a20ba5c91382669c45b24a1bcdc5d583c73a0215b. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:12:28Z), 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/BEUM71200326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb543c2c724e97618f1acc94764f74ce6c00d673cb0238965e1ae3b9806e848. 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/BEUM71900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1d49db1dc9e670e8caafe6755c5da6f530bed9dcaf89c3ad1f54a19806972f. 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/BE9HW2400022.