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 0x59e60c3cbc32df808e663cbec979ae451ec5257c7f8ecc137c10086a4f612c13. 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/9d29b051-e20f-4b3f-a321-771a744eb683.json and https://artists.proofprofile.net/proofs/artist/9d29b051-e20f-4b3f-a321-771a744eb683.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 0xe6e33ecfbacc94964c9eccd344ec7316886b09ba0ef70b407957a8c8d05464ea. 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/USJ3V1886804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a6c6ea1fe8b68499b61718235884d62001f37c78d70a7b648862c33837e00a. 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/USJ3V1886805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb1ccc9c0be1bb9d52a79ce206d3acb6d07861abea0539cc261baf66aa09316. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USJ3V1886806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63037d857313d941322a879dc0b5033e461653dc950bd818e739d1cf42c25bc. 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/USJ3V1886807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f53ffa7f025ef6fc25b85e16c149813d5f658ddf924e64273051a3509c8c35c. 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/USJ3V1886809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2332d52fb332ff7ec0fe2ea7ba0958a1686d84d35cecb6279ce4340d24ce8d58. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USJ3V1886808.
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 0x8df9267e12e045b8026ff5f235ad10f3e7b10db0c4d6be1292c62c6176929318. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USJ3V1886810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71243ebfb8e1f28e4db6fe90e92d96b519b7a8feeff730c047c88c49021509d7. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/USJ3V1886811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c8197880360a9140e6c20ff8ccd13931ae90dd6de1bd0fabc407bef329d5f9. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USJ3V1886812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3774ccb8b91d5585b7a44660e01dea36bfe7ce994279d1617fd47c1ea2d5df07. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USJ3V1886813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3109bbffd1d61906e23c657369281a670040e8f4f689c0e4dbccee100f9259f2. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/USJ3V1886814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ad3382928126ae49b96c298eb2f7544c9541933b8f22e79e84fefeb32f65c1. 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/USDHM1807046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef0f94a311037e4b37a22307e9e89972fb7ed3b6e2a9180ee91f58cebcce326. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USDHM1807048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd51c1d0886b3b02fb48f98c2cb9e30ffd75acacc3ca26ad10abda4c0a6e38a6. 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/USDHM1807050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535b760d5022e82fda196a6b0f6999697dc1c83ab19ee561a0bd79e3f63ae203. 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/USDHM1807052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c91d5367ff39fabaedc98f596d0809f4a99199b96ffa68bc92d80a9d2bc9a48. 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/USDHM1807053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555861e930f00f6b825f04d41bce933e485d2959b8dd3d833a0b93e5aeffdf2e. 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/USDHM1807054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1735a830cb84e8ddf75caaedc73e0703b8e88d26258a359ba53433741b450e6. 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/USDHM1807055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0396589c0476d55be8b1eeb3dc863714172ff876dd29e8269c38a702442799e. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/USDHM1807047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9ba057d755d13c2120adc851aa02e082d8efe9586448b667be7f2bc3f106a7. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USDHM1807049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa763ec5587848b093520c2bd813b7c2424afa07887c6fc8779b96c9b433b4020. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/USDHM1807051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c7dba62555debac2bcda0634e2c1df4381768201bc5f064e241bbffa9daf54. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZARB1809197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f74d5cd9c94b76595984f90232c8b67aece004056e71a852b22be7cca6f9612. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/QZARB1809198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ffc5f06131761e5f2b5db7a809146b70913af21991f89853739ee6bda735b2. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZARB1809200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8519ad8527f46fbfcf9381b1bf4391bee24a470cb5b2a38f43b8940a5f1510. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USDHM1713843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745e3112a3a9eeff6df5bf5c4ed7cdc5d6ed59069756eeebc2daa31d6f416271. 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/USDHM1713847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3c919255b76b05c8162f262eab61b1a09c42cd8fb3b0795a31fe4c39d1a9a1. 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/USDHM1713848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834c107ccb0c6df2e02ef560ee912df8f59ab1912711672121878b991eecb2a2. 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/USDHM1713850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aea2fa7b71d1602732fcac7f911019b2c741ca00419367553f40ae7e6370f91. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USDHM1713845.
Pull Up wit Ah Stick (Jersey Club Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44fcde6a1c85758ca240d15f53ef102ff569b39ed14025d5ce713c4d85af57d8. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USDHM1713849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad01a7af25502f5e5dcf16fe59b39f0aa9b43eeee09ca3a21a7223132f9c28f8. 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/USDHM1705718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2793b72cfc139a27e5d62f0a252c32deb4a6a1c2c524d81311b0ae478f1adadc. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/USDHM1705723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2caac2b979426fd8163b25910e39e066c9b3bc5e50afc76036937308e457bd. 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/USDHM1705725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9eac2aacbd1eefa5d05d8e0e95cfc0bf34daa2c63f708dd9f1045f2e9dce9a. 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/USDHM1705726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db4c74fd603611d71fd30cbb50e60bffbb14078492af36cd7a9f3409732502c. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USDHM1705719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fe1bf8a464dc153c0c38a08c74d25610628fe4e64fa4474148372aa58cbf34. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USDHM1705720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01c94add9c508ab8146311e50f082193fb2ac5ced6b6633d59d4a7252a64567. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USDHM1705724.