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 0xb47457592e5d9667b87a2559b9e0c8c8104f4dc40ec45a10bba93692b96edec3. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e0aafa21-210b-4ab9-bd34-3fa408e9a461.json and https://artists.proofprofile.net/proofs/artist/e0aafa21-210b-4ab9-bd34-3fa408e9a461.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 0xee2ce831041c8bd0c8a073139835e6257dbfdb141a764e2fc2c37cfde73397a1. 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/QZNJX2030084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286b4bbf0d349a33e6229b380800a3812af290135f0f0283277e564490b7014b. 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/QZNJZ2320231.
Jam Block Jr - La Puerta (H-ico DA Funkylooper Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4896eb3d6bf5b57bdaf6ba5d1b47ed49f13cb4d84e873c683c298206997b14. 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/DEQ022007186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311cb14cbf2e9879e3c6f60ec05fd3865c9a04d712e61156765ceac19d7841d1. 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/QZNJY2006642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc870ec58ca75af89b1e6a23681d378f750b2dbb27517de683a6891a13dd23633. 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/QZNJV2409679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce781164eca16dd036645f7fcc59fd0d2c9e63758651ec2d17f5ce6d1be35ae9. 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/QZW9K2282762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe919c5acda0e355fe61f876722159eb7e5161ee825e8d096c459e0c56edeea35. 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/QZNJW2437418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53ebd103553029eb28100cb396a04bdcf2356410ba206048613e19cdc35b460. 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/QZNJW2437420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1a541a23bb0603e94e00f0b97411b2b271b15abb859336792355810cd434ff. 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/QZNJW2437422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf09d4eaf9022ed27ab76e36fc900940cde82e9457c9b88aa6b14045cc2d2b12. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QZNJW2437423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd345e0c15d45e883a8f5bdf8c26790ea335dc66f558da18a875913bf53215ce1. 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/QZNJW2437426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8552b80ec24fef4ae4eefc6a3d28c728b4a3b335d9529243a3d7d2d41c1d8b1. 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/QZNJW2437427.
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
Jam Block Jr - La Puerta (H-ico DA Funkylooper Remix Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1de0d6a6aaded6130c93a03554cd30f1bcfa182c60a4a819188dd1fb87d21ba. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/DEQ022007187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1714ccf548de1d91ca0f7257a5d561febbfb52b7f99bc5389e0aa38a7abd6e06. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZNJW2437417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa59edc2a7e0c441f2b4c2ccb75280d91f35851d8700c8adb5231bf2fed1a527. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZNJW2437419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d554f4d89e725862b5f12b04c630c68c29712c50b260c4c62fa06770b4ef08e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZNJW2437421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9958863e2915ebf42b1de25bcd60f0fd27a64c84c00f0cae729df070da5aeb2d. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/QZNJW2437424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b175d1603f479eecdbd0007a6030658c9134609887a6b2056eac85f0168b8f7. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QZNJW2437425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd862a6b82a798f309ce47628e1d534726a2be50e35d752657c1c6dd1535e5fee. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZNJW2437428.