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 0x2a8377642b8d2d9d1ff78fa17ce068e0bc0e634a0d780aa3e5b653da9a5ed8a0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR9W12417912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64ee018f8cfd7cc1d1c37f8746efe271667ea18d040a5e8f620999182efc8ec. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/FRDKW2204958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7333c8b9a8e0422bdffabbc15fbf40e2102f30828bf753dfa464f22234d8771e. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/FRDKW2204959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfddd2983edb9be55f4fd5e73315daa0dcba92c480955386735ec89cb0a72e13a. 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/FRDKW2204961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bfadab607962fe6af421bb63c356d76b8303fe05d4134eb5d9c1801fb37d3dd. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/FR9W12326485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce919872bf16445cb447ae6787d90634e347a26ce185fd5a0ac9ead6d81448cc. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/FR9W12326486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa487f2eb48b0312a08147baf5419b7d3f6823ff6f357c9c0167ab0840eaf8efb. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR9W12326488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3562f6975258f671b022f51cb5d97de886da7f943172c76d581835a3160b6ea7. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FR9W12326487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27631ba4e02be66d8b5a23097c91a057d47f4687acd6741a927275eda38543dd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR9W12326490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719e9bbe52a93b3b3e8b030f0f4656693792ad6bae704ec2f48135005ccea665. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FR9W12326491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e3274c37f45f4af28e0f1d1bd8b85a232fbae8acb9d15df49feb641bcc88cb. 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/FR9W12344947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf971da5cbd50d0724dfc448ec838a24ecbe13479511ff9797318cb2a643254f5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR9W12344951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87ebd726b63f07060ffb4cec16fd7651a42896403cbf713cc07a6e3fa7c7085. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FR9W12344952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3dc5ce7aa9cc1ae27c4c206345dd0785d3cb0adecd674a1506648afa9ce6878. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FR9W12417913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969167be7ad039c0d37a08c26bf326d80c221dabc63dd7ded0cea2e0c555c357. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/FR9W12417909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9e57f10233039e387a8bc6da8bd2c4fa4d079d0becfbb8cdd05573af480dff. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/FR9W12417910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd570f92d3fdedde64efcf2baeddfbf479d62361ca9f30063be9c474db4d245ca. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FR9W12414304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469a51be603f367cc822f120d88817b10dea7f0ddfb7c335d10cef366a17e57a. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/FR9W12417911.