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 0xea37bd86b8a4f7e9eb9ed568ccee75cdff767697e8f4b97dad60b2353143a2be. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/499a6e3e-b329-4182-8797-8007ea23c50c.json and https://artists.proofprofile.net/proofs/artist/499a6e3e-b329-4182-8797-8007ea23c50c.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 0x75e49fe9ff95569dbed20cc905e20e84488582f798bb9102d0a00824a71ed860. 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/USAT22106924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0a2c5ae169725537280ade2e1ed6a2266afb2a6e929e5f27539ab314cf62e6. 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/USAT22106266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a16fe716c892555bc2e5b1126a0d6e4ee8c3793bd3f75d21a53afb8d923fd29. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZTL92177239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0a2c5ae169725537280ade2e1ed6a2266afb2a6e929e5f27539ab314cf62e6. 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/USAT22106266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4a4835f6203c73fc017efc9cc45a82faf38feabeab5c467ee120d97e5d4f27. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/QZMEN2119563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78335f10e69855be982a54b1f9cb128adeae6925766b1cb50cdddeab0702a2c6. 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/QZHNC2131740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf74d2bdff6f3f0eeef8acdc1fec9bf19245c0656c67249e35b7ba86387a7f5. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZDA42157567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4cc9daa0ebb01d17d36c00c26dcb36918136a09c1907f1da597d6df3beff76a. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZFZ72140511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188b42a87e36734c73e9359e0c92caac850f316de178fb48d11a2ab640e8be9c. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/QZNWV2080810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0fa37cf38b0d69280e40928c014d3856d4052cddc5996add4d378e68dcd892. 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/QZMEQ2015935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608cc5077c4dd257e3cd513df1e01c089bf512faefd56f6c7dfe1ea6071771d4. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QZMEQ2015936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc96200bbfb12cd51ae2a880164fd07e7135e067e79120db52368bf1c74bfbf3. 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/TCAFR2130790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1349bb0d984229636b00f927c8847fc466530b96622d555bbbabe82082acc4f2. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/TCAFR2130804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d7d76027451843f90fc1037207405e0accff5d8b6fc8e597f6f14f5e603316. 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/TCAFR2130812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba2a607054c9f5f96d1a281dfd3e4f81044738371694b5de2f0e157c4016e83. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/TCAFR2130815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b1cd3d5db69761ea18683a37a15a46b238c990f294b466fa9cfade040d7441. 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/TCAFR2130821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0364a2ff0468aba33cbd21b73d2d6784aa334b00adfca38c78ec469bf3bb31c9. 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/TCAFR2130825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51721e3ddfeff984a469da24504b52bc1da413ef854ded39031855a7d2959b6. 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/QMFME2036294.
Road 2 Riches (feat. Low Boy Fatz, Peysoh, Young Demon & Louda Lou) - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8ef4d901ee1fd9173ff6d560726c69df5274b2e8a68ab157b2c363fd0f6472. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QMFME2038986.