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 0x9492eb1916af4ab41d0ad64eb1b03b8caeef61fe60ea72cd8b5c6ed76d5f3dd8. 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/QMDA62114005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1815a99a42059cc8cce983d878cde5bb29c0d35e116c3e6f00b43e316834d5. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QMBZ92033636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6878bc7078e498089e8de4362834c8b28b189ef9ea315c9fc39eeb41a0c89bd. 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/NOGJD1801040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80acf077a0604e46c8325b87ebe59c08016670a3f82be8f7d34fefd23eae274d. 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/NOGJD1801050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce022682796b3016e540070920bb9b58917d5d564dd90a6059751750e9154606. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NOGJD1801110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0611ee2a4171e2ab6253d52b74b4d01eecba8946efc53bf9819694ac83b3f7c0. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/NOGJD1801130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbeaf09e01545d6bce9e9de791d797f50e8cb096abf0e780c16a0a0bab480420. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NOGJD1801140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee20543642c2627a71aaa5c0a6fbd15187d7b71ecff417e0e7b537e8316b2681. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NOGJD1801150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3caef7fd278240180f1d776fb9726087691ea21e685d5f0c3416c47f7ebb057e. 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/NOSGP1501250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c384389c2656dd17bd38f2d25c9eee9f9e1792ce8b3ccaaf6040f05565cb9b. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/NOSGP1501280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5879254c10c52ef6da41966877b570e4e9835aadb4d6a766e00ce829bce509. 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/NOSGP1501300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0bdf794af727d9f1f9ab84ea30b66ba9970436522db75952c951af48e8ce5cc. 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/NOGJD1901100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f53db8d7b06d949c1b89be9f78c1df59a71b7d83d2b63646437127838e2248. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/NOGJD1901110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86035c51e5c6e7394c59d8c53636d8c64daa73b08bbf9a83431e4f100c289f5c. 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/NOGJD1901120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c85417690423081842a41b44317f6196e969caeb3e0fb77825a686b45dfb91. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/NOGJD1901130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00fbb694dba540ed66c3c298c5c16b129dfdcdeeb80238e9ecc186b7f04e463. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/NOGJD1901150.