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 0xad87f528810d362303c0bb22bca757501223f3e791f787ca5c42a81af5418ef6. 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/93a23271-a119-4e1b-b96d-27ee3ddc381a.json and https://artists.proofprofile.net/proofs/artist/93a23271-a119-4e1b-b96d-27ee3ddc381a.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 0xb5d78b5fa4ab16e0b0762faad0afeddbd8c9e71e0925d646b374c0eb8cd0ca5d. 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/UKN6K2100959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394f143a07d72bdae3b3362d0a28819705d117390abf99712c464d3622f567bf. 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/UKN6K2100960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7333335d9a19c4733d09ec15e9bd378f5f7a42c34d6bfe6410cc38477f2e26. 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/UKN6K2100961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74abe888a22619a74119e0179e7f640a1554e3d57ae376903c51d2b4a3430f23. 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/UKN6K2100962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394f143a07d72bdae3b3362d0a28819705d117390abf99712c464d3622f567bf. 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/UKN6K2100960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab58aa4a20977d50eae880c8b913247efea9f6c959eca54682a6803a2fa912a. 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/QZFP52465034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35478210eb7d5f56e1a2cb741c7ea11d293cef8c74db0ab88c697054a5895e4e. 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/QZFP52465031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1abdff421a9afd3926404ea525940b35ab3bb460fe2e4a667f52ed4be8f58a. 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/QZFP52465027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24808775ab58d41f61a102f9814c0f0b1c6cb092ee18a448b8a59a82fef3058. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/UK34N1800851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cfc0112d1e2f331b3d4eb7741af33f7d4d5d85897759f1147ec299a752825e8. 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/UKN6K2100365.
Starbeam - Interplanetary Criminal Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fa724bae09dfc57b11e02568fc0331d6f97a268fa297588647f3ab9b71b549. 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/UKN6K2100366.
Starbeam (Interplanetary Criminal Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fa724bae09dfc57b11e02568fc0331d6f97a268fa297588647f3ab9b71b549. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/UKN6K2100366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dcf224e625804d2d2ac343db6b1e5c9128d12bdba9245ac70ca885032f12c52. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/UKN6K2001799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab82207b47e2e0b4379a68fe6ee6a26b60d311bf1d572b4fad53194988c415c. 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/UKN6K2000594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bea1539a049ce72aae3dbac46740faebba033e214de53ebd66580eca61b8532. 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/QZKDK2055177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1d74e46ee7e3ccf5cb8fb4cfaaabce40ede313bb978ce9786ab8980df611d6. 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/QM42K2047619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a46754f0df6169db47e5d28eb58f8bf090224920b3c49ce07a4f33faf778541. 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/DETB31800473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fff95ddfe1e401f05b0d072df5a2a8cc90f8666d85094e9a681d047e3819e6. 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/USA2P1833838.
Pre​-​Rolled Joints, Vol. 4: 100% Garage
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970376244b2e093841135012968dd1306ac1a50a805d842a4cedfb3ca9245e3a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/UK34N1311163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7df5de8b1e8ff12f5e7315510cf2d18850a7b9cdd17449299ea5280bc2f848. 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/UK34N1800674.
Pre-Rolled Joints Vol. 1: Remix Collection, Pt. 1