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 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 0x464df3d987369ea58a1cd01e7aa532ccf14bdf71a75e760ced007216dec10f37. 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/5260cadc-578b-4a6f-b3e5-48d9ecbca8ea.json and https://artists.proofprofile.net/proofs/artist/5260cadc-578b-4a6f-b3e5-48d9ecbca8ea.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 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 0x32f931b196d62076b5e92ea725f060b1aceb5e04ba15eca1a02aef8f4bf6e21e. 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/TCAES2099716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78ab19bca09ba6e5c19595f2096cbc74f69af996d20a66262fcfd67a4febc46. 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/TCAES2095005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c9adb3aa5651a97c76513f361f80ff1c909eb03cdea22dc795c4e3fa640f7b. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/TCAEH1991534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2483c0c31f5dff49e4a360180dd6e0169d5b19aaaf38c8fc1ee69ed7641bad. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/TCAEH1991557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd152fa89c3b089e6625bc0f30fe50b98125d95c6937b4c0de293b758832e4e97. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/TCAEH1991566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8bbfbf945cdc3ab034adfa0d54edc09247d350997c02b10383ad0e36d5212a. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCAGB2270092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8262e53989aa5328658f84a00d5faa54a01c6dde6ea255518aa6dd17bc3d9a4f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCAEJ1997574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1868b4f01322a010299e9121eb4322ec7c01185265c01287e32e691de0b86e06. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/TCAEH1997352.
Fresh Remix Feat Diamond Platnumz, RayVanny
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb858d1933c6eded8f7f0170ed5e8c84f74cd24aed84c6b8bfd6340eb110015f. 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/TCAEH1997321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7919cdd000e2881c37837ef4089b9a8b6b91cb193fc64f619bf7b938341facdc. 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/TCAEJ1942730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5715d6049e24ef815a67a707a6041e767da2ebb522f47a99ef954055933bd0bc. 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/TCAEJ1942732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2cd3d6452d7cca5291215d43be2fa64e5bb06a405e9796caa9e53c97d52727. 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/TCAEJ1942751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd305da0b03d41267d33634968d111713e971c2e8d16d02be071ea95c29f4b7dd. 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/TCAEJ1942760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7f15c1395151d7c52db8c6d51d611ac1bc57132ea46200ed615210a411745a. 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/TCAEJ1942769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab4ffd3f7f7eedabf4c237e112d0799be67e0e64879fb115dcb3e580dcae68a. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/TCAGJ2280672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246b2ed17b77e7b66572e299d0d3cfbc52298aba2f24586aeca69a3bf01c6d48. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/TCAHI2391043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1377bf6ca61d870065b5dfb4809a6f0271f51bc984741d67ed19e00c6e1441e. 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/TCAIQ2416486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893bd89acae3b26897605484c6d4f34df8fbf30f948f1325aaaf14d8ffc26bdf. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TCAJY2552155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b72a4e3c89993bb9aec30f3c247ed77e3015d6256b76fb6d55d38dc4e21db6f. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/TCAJY2552183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81f3427d46cba4725fdffada928cb67176cf42bc0681d384e93abe82e39792f. 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/TCAJY2552204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefafe386bea52bd660baf05766be6b51db392cbaf20f57e802e1b33d08f143d4. 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/TZA1X2200778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4504fad2b8cc7171af870ff51f57e32d5f0d6e447e97547e965923a428269f2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TZA1X2000804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5baf4c29fc3d4a9c337f71f2fb5b438ec6f6f6ba0dd4d84a5744be6a17ebc499. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/TZA1X2200724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2317bfb0a20c93af41f3b5690e7c4b00680bcb6d410ec1b0517600472e603c. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QZJG52288460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb399544f7bc08f2f4e6dda20b40ffed0b7a732836cb1e6007582fbe75114b5. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ZA41S2200507.