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 0x0a1409c4a6aae693d6eb87aa3cc0f9a7efa707b612763035515938beb7866bc3. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DEA810501237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a89f735345e95e3960564db904797c47bf22803bf4b412f32c37d79be93aa3f. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEA810501260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c24a2fa37474137a387b9c54c39dc3ac1c58d3f2724bd3283097108461949c8. 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/DEA810501238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf018e3afa065f585f798c23f8f293de80f6f307ef9b57df12537dbce4ffd2109. 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/DEA810501261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ecd17628688d0ccb25d67b24a3d2d5c26d3d41ae45037f1a6500ce234ac45fa. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEA810501262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6d16da631fdc94309ad772c84306a9d99381fb5df922a5549aee073f730ffc. 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/DEA810501240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ff05d5ab3db867cd62ef3d7cfa206eaa8c4566a80f77616f4bb6d77d29eeab. 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/DEA810501241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89256028eb65a27dcb6476d8fdbf6c163da7e924d319faf0b211d8132d1db37c. 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/DEA810501242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d489ebf213f7c4f8c6a3f7e6dd3f2a92c1c76ba6770fc7b23e473ef44aaa55. Chain 2 (Bitcoin): anchored in block 957249 (2026-07-09T02:31:37Z), 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/DEA810501243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b138c363398b6f6a2984a4fcef66647009431bf2868f468d4e84b659af5b088. 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/DEA810501244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983ba0372bc9f49905a2acd4e670649cbedc471da5853c1787dd7b3235d16249. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DEA810501245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4118959675f4f673130fee28d117b61ba9a3294766436a16caed570ec8516804. 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/DEA810501246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6093ba1cafe0d5f30af5d57df7bd9df811e4aac7168731a92343652c4b91554. 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/DEA810501270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b461e516205bb88b8c35c5069699ede6689b8622a157c4d7f95a075f6577da2. 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/DEA810501249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5931cf4170f42979c9981eb36776539b294bc3a420b8e2e0d20f91c5c8595c3e. 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/DEA810501271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77406d78b69cf0723de21a46fdf64609202303bafacd4f6501985ef6ad4aa5c6. 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/DEA810501250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391b377458dd47694e2c6ed805a79b83b02d7dbcc4220516e9cd1644a5b86980. 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/DEA810501251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecfd4da0be3b079d305c9ba4d863696b780a7ebab7247679cb4cfd9243d100c. 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/DEA810501252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664b58bab27b0b7543fb4cde5601c4a4f29c4bfc0dae1d958483ab46860dbabc. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/DEA810501273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2a6b7061be021a9b754d0d3b13fd4f32adf89e1033a41ef4923f6a9fddbbed. 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/DEA810501254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3035dd3f94052404393cc9a8249fbd42dfc026398d6f716f433e1f4512a023b. 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/DEA810501256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb408d1549a61346688d9d46d73a298210cad221fc9c3b5cfb7fa6cbaab8621e0. 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/DEA810501257.