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 0x01e72cbc64d08d220b56bd61e94a06ee3c2a491c23f0ab3400e74944d247d73c. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40ee14b3-44ec-4613-bdae-266b4da96add.json and https://artists.proofprofile.net/proofs/artist/40ee14b3-44ec-4613-bdae-266b4da96add.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 0x3757c5ad5a8083911d8a364f39534bfbe8a62ab0bf69574a52b702cb7b7709e8. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ARG991014387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0707ac4149a882d241b153be1269a5a0238a4bad1692c03123bd3cf602f64df0. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ARG991043984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0963952f14d96ef574cb5024816f4c3a18beab20737cf7434b39a2334f479a5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USA561049037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b8a1ba7dc12e594f60213415c59f00e585e0d7f69331972bd262d6b625af44. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USA561049038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37274745dc4874aa410cd6743ecc309b8ab1a66af58b90fa7aaa3bc27ed2ea7d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USA561049039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b7e903c9663ada6c5f88d04b9b23fe4439b0db355916224e6a29a3adc46a5a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USA561049040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2ed15855503eb0f0e731f08ddf3d8019ee46a07717349543f35d0f767c94a1. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/USA561049041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d4a63751c8f04768602b9b57dea92ba4cafaf3d54f464c84e9fd37fdd4c818. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USA561049044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97120b445d5886a0d431a56df2f0be567c6cfe0f1e40c3822357f8407330b54. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USA371187904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0be5f8bd06cf42d7d3d2918606f07e9d02ef10aaee5888557bb6e9e090e3cac. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/USA371187912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2fa2a2b62d9bd87f4e6108603d8cb1003964fb9398c153b21b32b3a0ec3a49d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USA371158716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a3b3e93ba8e7221c305efd80a86e5cf4c4e37ec3fe958fdc679927c7353bec. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USA371158719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b09adf1e1d54dd2435ae01b471532690d5be3dbb1c7379db6c9e521e4915ee. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/USA371158720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5de899621b5c1191c575f825ada036f4d91443722aab6c1e65e94f8ed88d2a5. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USA371158721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f99bab0b4bc873c1a8da8e2b308028b4332ad13567e97e727f969f348a19916. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USA371158714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149429db307dc62e18fed2b88e398e4d4119a47163c8f01b7fef4647d543a60a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USA561046226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4cf4fb649a1c4bbad5a31d5990ece0822ee5577e4c389e8c9e6e24c5811203. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USA561046229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9768e305c5086693990c92bdd1ac625cb5fe302d2e8ccf2569c7785fd52e61dd. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:43:12Z), 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/USA561046230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a6ddb3303a81afde3ccea8bc3fa9525178320d75a4ce41f4f5ad117e0554a4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USA561046231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb96bdc7496ebb3dfa8ffdbc0c4295150e59886dbcd52d49b5182ed8c933722. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ARG991014252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db8511b338a0b65dd0aefcba36db9cf1da13d8141d8dfae6a4e4b6479306595. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/ARG991014258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf448d7b777469632e0582b301bf5ff3d45f6c49f9467eb99b36e1bf837bdc53. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARG991014261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f1b0d8a2a48e283dde300561c4cc0e980e9bb60d2f28719c75008e8d786c9b. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/ARG991014262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa205e28bfa57f6f847d7158eb735d02f77f4ea053636d445322ac269676c9e1b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ARG991014385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae34d878ef96fa8649e303af10e9e013252d7bc050e6b1066e3f43a18d47cbe1. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:03:22Z), 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/ARG991014386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f188fc344aad6467292a6c72429c56781c7a4a75db9b900aaf76a0a3ec8c07. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ARG991014389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48915f9ca85d23ad0bc28e1c1ebfc58c5e93ec3b1b9ef01d6283a57db87b8f2c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ARG991014395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14b0d4bc403b49d6cb7d3f0f2741281e85f242940f9082947980745ac192bd1. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/ARUBX1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204ea71baac839e00ee11d50af3c1b6d7cb89630673ebf7141c975a77b24366b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARUBX1300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7361410999d827e3eabd02f383e26e26b14fafd4651586bd911f5d4f335346db. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:03:48Z), 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/ARUBX1300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a076da42a790592ecbf7120b19b244ef959dae70199ba7270b34c38bb7d4be. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ARUBX1300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10ed81508feb8500706483b791cd3f735a341e49267a58b27bb67794a8b5d5b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ARUBX1300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8421fb6be40927510460b224d6cc49a529bd94e2ba736032f6e9da8e0eb8de29. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/ARUBX1300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0722dc886a3d109e8f0ef0a6e1595293c2323eadf4f0db5c43ef2d94c409c8eb. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/ARUBX1300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0c0ae43a039318ba67e808f196c676d8d8ac97cd1e1545c9c3e3f2f6f88be6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARUBX1300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645f8606745244c4928ff79bd66fbd0ec192efcc1d3d6a52afb43f32cb5f0795. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/ARUBX1300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e79255d0c53529840d180addbe0f82bba55f38890892bccf3eeb72b4373d98. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:53:26Z), 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/ARUBX1300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29490fc55b3a91ce8d1f5ac99ac9233c383bf1ee1073d9428b15262aee325e1. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/ARF101300403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3fb1f636328217c25be5ed408c48d8419bb11344256efaefb2f8530235170a6. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/ARF101400185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eed54f31e79c6f864a8c63e351eb8572a55b0a0a0686e131bca66f145bd7d2f. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/ARF101400181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa64d5bdafa9c07d053c9c30c2510ff0fa022fc8f17b33fbf82cb59abe11e2c. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/ARF101400183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97b7f772a80368d4da886c30f29eeffb05ee5dd20298d20a57235ed53d68c29. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/ARG991023723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a39bae367e3a8222f2fcd660240d09e3c99b11d76c6657d15269f3a084d899. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ARIXB2201472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73a2ede37673225c5556d179b991aa8447f376f66c367f88a0a18bae9ab8af0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ARIXB2201476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410a02c462d3ef9db86deef431bc1c1826526458f57a61a4b080ad355f387db2. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ARIXB2201478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ad2d2332a64c845a34d50fbcf77f7f0ac5e50e84283843842d88863efd3d9e. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/ARIXB2201479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b2d6763b124364db52d870e26a5ee92ff7fbe6f9f5e91f0ac395780c3bd175. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ARIXB2201480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4761656f518d4811b1c6d1346f505c6b83f57dbf78c472e85afd41c87d22e2ba. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:06:24Z), 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/ARBF32000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf691a4fe7984ab9af80f2fd6765e76d36ad24bd2e0057cfc51f709d9936df65. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:58:44Z), 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/ARIXB2202970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2df40118a6b72a69f33002479379a487899fc38445e0712fbef44f5788327e1. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/ARIXB2205400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee69fe16e73549002d2551e01290008afc54333d3bfbd7f72f7e621765741b1b. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/ARIXB2209343.
SEBASTIAN MENDOZA Vol. 2 / Zapada EN VIVO en UN POCO DE RUIDO !
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e35ad2df72fee68e69c81a0ecbd23b2937af8b3abe116052936c455a1bfe997. 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/ESA011848277.
Paisaje / Tarjetita de Invitacion / Juana la Cubana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b6a0049caa59ff4d1746944e802aa3ecc7ddd71064cad97253ec2277c5c057. 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/ARG991026153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63acc2dd6dbdebe32c9f19c65248ef992209eb516e93556438d8c0ae55a44c2. 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/ARDL12300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478cfee36d95179a7fd8aeb62a9bc44fd7542374b1e3bca0f418726e7bdc916a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USANG1901828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ac99ad23def6772a40f945a469a7263ff74d36a27b9e23b937ecdd4a138618. 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/UYB282119011.
SEBASTIAN MENDOZA / Zapada EN VIVO en UN POCO DE RUIDO!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87a2fcd9ae48b093a18dc21240b5736e79f7643e8a4fc46b3e8ad6fb359d6c9. 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/AR5UH2400667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7317909b91a2470d7078d5b751f689484e6d9faf2583a06cad0785aa894b686. 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/AR5UH2400668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fbddc841face52442d4cfa7f9f375d4a6288b3a23e66ea3679bfcde8798542. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/AR5UH2400669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831abc5eaed39a7bd3f031ba6fe861c09c7be968240b046c4040a80177f62eab. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/AR5UH2400670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72e34f52f744ebb5a9c7f84cf417916197e6995591e2044d3b4773747233f39. 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/AR5UH2400671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4203c65f55cfd8f1a36475dd5465f7f3fa57e114b5f135116104a5fc1f94be34. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/AR5UH2400672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18b4a154f7d6a540a30ccdd07dccc347f1b160dcf19fa425a91a41b10d9ef5d. 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/AR5UH2400673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f896feaa1f18143af06aa2f5fe695e9ed0b9b181a2f2337d7ad34a391d63a6. 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/AR5UH2400674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42f3102bb9ceb0916a72c89bc259ff1f8c15657f06d0df60bfaa1b0fb57816a. 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/ARG991034193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbd640a326bba91487327a4910a93ff9f0f8083552060193f4266850fbfec18. 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/USANG2242797.
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 0xd73e4cab17a9452b0201703b789bee4132fe17fd11fb123f47890d9ee92106a9. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/ESA011848283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bf1244738fc980acaf8522627be8042a1ee7b817776045f8b43bb5a7b12daf. 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/USANG2242802.