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 0xfad53cf4c537bff2b27df6c89a56f1a38c7196af4448efb09da6cbd8a663bccf. 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/d5b7f945-3b32-461f-b05a-dec64bf0d8bc.json and https://artists.proofprofile.net/proofs/artist/d5b7f945-3b32-461f-b05a-dec64bf0d8bc.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 0x0f41073755524d9cdb270abf73c9c8c43834dfb6c39f8a471dc214ad0a163d48. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T16:02:53Z), 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/QZGLM2381348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea036db1c7beb115b892b78ec97b75b191985afa935fa251ed0661e904472b4. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:51:13Z), 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/US7VG2417595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67273b11b41ced976ae13fe5179a558ac161a4123fb432581e5fb19f29db153d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/US7VG2417599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9d0184601cce606def722adb0306bb04be7d81b0461fe6985a48017210267c. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/SE5BU2466038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72370e51ed15ab931a41bfc6eca35083d439c6308251a21f839cf36d2819fe62. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/SE5BU2475361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586d833e6a65de97c2c904cbd6f0d0d045e6ad0f556a46f747add869ab5f3bae. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/SE5752459592.
Hopeless Romantic (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb4e457948c60c7e800bef6d6ce84d267eb964c9a31026e40b3b0c3ff3fdd18. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:50:10Z), 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/QZNJZ2458062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626d7e687b55589be2c06982b2a60dc79e1779fe8092547cd877c2fb7a973e37. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/SE6SA2412477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bcece7028007f464791c1827b64d79e1191bae3848456101d1ee564ad9c6d3e. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/DGA0R2422030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfb7753c1af92f5dcc185994d8b563153088f35d6f8e68d3e7cdd2f79d60797. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:00:45Z), 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/SE5BU2501920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f38abd52eef004f4e23cf7ae8a11821a8edf12975ad40f9c485f158847aeb40. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:54:14Z), 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/SE5BU2519614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66331c07461044deebab14b74ba97811b9b0d3f489316826a0d66b0ad516035d. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/SE5BU2538388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf989506cf9a2d81be343e806dd00814c0e45e515d8787b686f825c53a19fb33d. 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/QZGLS2527976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8e95ba1cc05f9d3ed3859e2509bc88f6b7f525842d33f779d5a8b29e6d7160. 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/QZGLS2527977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3cd90175d39a50edd0ab36995e01e82d1766628e5b4b0613f0effb3d78cfd4. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/QZGLS2527978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b3eeb80a03621b645c61e57730b6dd553b2746ec15c3e629c55f7de8b7d99a. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QZGLS2527979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc196742f47cda3fb511c62354222862da32adefe5400f54ba23e456475e84ba6. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:15:32Z), 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/QZGLS2527980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc411b91d65f04b4c16dfc102b48c2e0df58ddeddaf705ab500481e3dacba21. 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/SE6XX2582712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215b6e24f04aef9f2ccd99686d5d0e5454c133e5fa927ca5abe4c3a7b7d84755. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/SE6XX2595145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf043062a766304edf7bc9953c73982cede7802f185d1f791c1c5e1750e68d394. 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/SE6SA2581356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273b3bfeb18a09ac148655a0efb40acc352fd3d23edc01923354c909001ba007. 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/SE6SA2578042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51636ca9201ebfcec4c56d34aeb20de9840ce17ac3d50ffb2d362bba10957d88. 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/SE6SA2581353.