{"copyright_id":"0xad76830af307fc8079ff766f5c4774a75babb494ac973ad3edbcaccbfdedf653","name":"Los de la Lonestar","registered_at":"2026-06-11T18:26:04Z","symbol":"NIM0087304","token_address":"0xda4d9e0bf9af7db7af7929f9d9919a1a227c9cc0","type":"artist","uuid":"43fd8fec-205d-4ec1-be20-53a5a399bdc6"}
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 0xad76830af307fc8079ff766f5c4774a75babb494ac973ad3edbcaccbfdedf653. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43fd8fec-205d-4ec1-be20-53a5a399bdc6.json and https://artists.proofprofile.net/proofs/artist/43fd8fec-205d-4ec1-be20-53a5a399bdc6.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 0x4cf9a0c12f8ed9898c18d1f2b7025a55eba4666bd86c5ae8b1875fcb1eb9fde3. 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/QZMEQ2194923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029f815048e9ad099c9c27ac75b817d7a6a7a1ae78d2cc8cb9b8ff4c110cc781. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZMEQ2194925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d4ea14bbae1368fd55be42333ad0805e726aa96273523c6945be9b3ef4b03b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZMEQ2194930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256914a76dda492f985eadeee2723f6d560d6a7a4197729cffd0eecd6631315c. 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/QZMEQ2194929.
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 0x5c55c1a57e861f1f351bfed290e889636205e7080240260f04e765b00c8c1265. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZDA72136504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56da3a93b72e6984fb5115977e5e5279b0cf60abeb6518e402405e84988f1ef. 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/QZDA72136506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32ee1c56430fcd43e300962a278ee0a995ac72b882ce0e29d7e096345e63a12. 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/QZDA72136507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5c1f5138fbf62b05bc6e370cf27a1e32ab51aa011e3c5916f45c81f7972675. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZDA72136508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9951c6f56c52cae7e49828f57ef2f40d181acd119c0eeb7d2fb1be909b1624f. 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/QZDA72136509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0e73d8baf83def2fde695fbe7ff425e29d00c20964f278a8aedec2a1521b8a. 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/QZDA72136503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1b7a809e1de8ef85a42ca8833d4eb9b3bb505162f057fa98f8f90644a41742. 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/QZDA72136505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89deb7b342e76e82fa1b64b38c38008a5275af7fd74d0c6457903fc6ae34a98b. 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/QZDA72136511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477bbadf17630233001e3937deadc2e8b43c09c865b75df4e81027d96421cd7a. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QZDA72136512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730b8ed02ff27680cdeb64adf529f865ead2d9dd732e7c1a260b000160ab814a. 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/QZK6H2339929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20def2a9501caaf1c43ac5c4c08226e971fbfb87a10300315c484de8c5c68c7b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US3DF2271002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67ce543e561c75e0f86e52b6e2f02097e58b7f775ec0d076e945098e31875c1. 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/US3DF2271003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687067b2228428f4f15db9b499292026fc00333842916dd74709629d0f6e2910. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US3DF2271007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2151ae5c28a89f2ad3b5f5c87f8f7150997e8ba1c9ac4166cac7d241c4ca8164. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/US3DF2271001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4470200867569575cd14bd6bd8e476cb6da9a7811fcd4555dc372c55914b95f. 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/US3DF2271005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d726c4a48b61db4f98950c7ab3651bbf65ee72b71bfb1a49a88da530e50477d. 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/US3DF2226771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60691cedb5f87b355156f78fa750ee200a0131d76400148a513e082eb6e09ee. 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/QZFZ62463919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01922032e99edbeaebb8a98df3d2f6c37b9a19ff582862f435bfa7fbfbb5e34. 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/QZFZ62463920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd441f9a2806f44311632246481141edde559ac7bbeda8693a5d6f608a4950e45. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZFZ62463921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bdd903647724c4c69d51047318234136a2b6a9a914ca70f1db99cdb9d2460b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZFZ62492074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39edf7e8f85126fd608c0b9a58e323d8335eadd93a1debec4b8cba3f631ca4e5. 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/QZHN82565181.