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 0x5b5725a7207ff72a33c044eb0a918b1103f1562a429668855ecf911f2c3539b1. 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/61bcd22c-b443-4f37-b7a3-339532fc5b84.json and https://artists.proofprofile.net/proofs/artist/61bcd22c-b443-4f37-b7a3-339532fc5b84.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 0xbe7be9e5b3754031b99bd8a4b1e1b2cadb51e453afbd928493d90d1f108bf1e6. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/TRBIR1800034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b02127c8eef7a271dcfeaf39450ca593d3a854e34b98343dbff1b2acb6472f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:01:11Z), 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/TRBIR1800035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc695eca10acf2a93c18279ac8d6b8c546ac2ed4010a83aa6fef77259b81fa99a. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:32:16Z), 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/TRBIR1800037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbd505b8ce921dd5aa84dc81ea2c63f15eb6b476f1def5fb05f198ca0235559. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:52:51Z), 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/TRBIR1800055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7349ab5ea0a702de2b2bedeab29794add25b5a83f0a0abb30200f8b92724292. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:26:20Z), 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/TRBIR1800063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff54af4ad316e826e4669be29961f878559446fe51cba4978240c9f0f151fc3. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/TRBIR2000632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5d2f3a44829bbd9e62d4c4b85665086f887673e5c6d0be8c3c54daf23890e1. 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/TRBIR2000633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321778028396edb8024341356343977cf74ba29764d857be2787ea026dc9d9a5. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/TRBIR2000634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffd9d797c466914ac8e08e69e122b395cdf3e2ad4093f68286caadb05474f5a. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/TRBIR2000635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4cf894eabc90bc5113f6bc86196805097abf3b354c0b3749173164b6f43ebb. 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/TRBIR2000640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1897127e3a8f3f19507aba99ae0dae991e3b4aaa2156b943a5db5eeebbd515. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:37:28Z), 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/TRBIR2000642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e3c477ce6a4ef5012b5d49f6f6ef4867fba4a0caa474681471ed095eae9dba. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/TRBIR2000644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3a3b1847ac468622da6f4df2d0f4a5c96f90d77e472ffc543316ae1d237f4a. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:39:45Z), 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/TRBIR2000685.
Ya Hellê/Hay Badê/Bezare/Deşta Gewerê (Potporî)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b47ca552bf0d5a406b19d0401e07a51b7aa27a0cb7584004607dbac18e3011. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TRBIR2000688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0bab4be99acd6896c39d20e5bfab62eba43e230eccec1c8ed6a973f1f878ebd. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TRBIR2100718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c304c257e853079262b67e89229f15f8c0112bc84fb9701fb4bbc444c24bb2. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/TRBIR2101006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15178a76d2989e8fbbae4ff48d82f5b61b9379062da441ff60c41eb2f919188. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TRBIR2201295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a018ccd502b2d4266c85e25e810d4e03ccc3e24d9b5a92206f8bc42a6c2586. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:20:42Z), 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/TRBIR2201302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71cc2c5bc4d8c06e87b9f9c005c3f1f30029c7f4aa68ca2a2ac9da77a0072e91. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/TRBIR2201366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3269d2ed436f894dfec1a017cae7df40c1627b1b6e2f12f7da5e9968b751cb. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TRBIR2201368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb460c766efc113a82a991469b81047cda069d75691ee0dfcb758d0c3ac0d74fd. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:23:22Z), 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/TRBIR2201367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d0d50191b3ccbe610876d87f0eeeff607037ce0ad910cb0bff1ee8ca552fb8. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:08:18Z), 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/TRBIR2201372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabde9c20f54d9b86ec4010eaaef48f2f3514682f9f9b2261594f84b12c9e6c36. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T03:25:45Z), 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/TRBIR2401977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f4a6c807f4599d8f253da57a4402f736595eac102e979017cfce264d6e409f. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/TRBIR2402238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91215f669987e55cf242794bac05f776a03d8f81189373ffaee302215262f31c. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/TRBIR2402268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd9c59e4a5d3e6f8cc26d36badb8641664cb6eaf0fb53311d0275517538b0ea. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/TRBIR2402291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb49caf7f411e3ffc8b59b404a2e4e733be4c342ade79a48e030d045cf0f3534. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:46:22Z), 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/TRBIR2402290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26937c12ddac00513d39f18a92b5d3449a046d1b92e13eb4ab54935ed370bcb7. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TRBIR2502517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd232b317a8c656b9f4ea15583b002fca00dda96e718142b363fc30554cbb8b89. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T13:07:52Z), 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/TRBIR2502539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0493211b7a570ea87213a14b2e842846711b2b623900ef9fa4b21f608ac5cc. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/TRBIR2502623.