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 0xf0df8136f1ed3014ecde543a0afa404ede13e7d8e9ff010a329cc7c7f6373a58. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DKAXK9774001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbc97b5b6560ad1e81971661d4d8022396e6e1b7b9c5b6f53f075c001c6e17d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKAXK9774002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653e0718c2b2f1fd3fe5d022c43a0e6ded603f8a7a56cfe9af401d897633e6e8. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DKAXK9774003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c74d0e1cabe6f6cee0ea81357ba56d2b6d9918ce547af0dd105b7493ed6b5b1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKAXK9774004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33b3f488c7324964a92acbe91fa0d5c74280540a70c07c047d4442da0db6fe0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKAXK9774005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb870dd2122fdcfc7fad57260f7d6cc45ae3a5db9a6c2a33547c8ac5a34102f58. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKAXK9774006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf56ed6e113215f2b9ff43364e2ba8c7b4be172cae5666bbd964c29269bc16d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKAXK9774007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641034bda2a9c2c8627aecfbf80d9c4af4db4894945f27dac9536342c05d1908. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKAXK9774008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00e377adc369d182927a226a2d0e1d8e38a20909d69e68e3789c7c2c1df60eb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKAXK9774009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898516ff81ef581898d9a4a62fbd35efefabe8d68dacc20daea73b12822fd377. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKAXK9774010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73f1193cac04ca180c7d0c4017d71e7ff8b78f6fd87a5bf1d57a50499efa7fc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKAXK9774011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930738dd58ed8aabd1f7bfef68a6b77a493fdb24f180a45d6240374348e0c483. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKAXK9774012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfcb6b0fce7ab73acb06f7096935a6f5bf645ca78e97d134d545f12e6e92311. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DKAXK9774013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bbd2c50432308c598b402132e2d2eeaae2ed25830de057fe5c5c64ab0e293da. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DKAXK9774014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66998f3d8f3f649f748ff39ebc832d3b71eb5ac408a9048d2d0e7118638ba695. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DKAXK9774015.