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 0xf8f38701ec1224443f8b7342d8532ffb9743c982deacd246c343ea6985ef49a0. 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/6ab9efa8-5b69-4e65-9bd4-3f8f531a0d5e.json and https://artists.proofprofile.net/proofs/artist/6ab9efa8-5b69-4e65-9bd4-3f8f531a0d5e.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 0xea55ebc78fc16eafc4745e4e718d9c5c523674b2074f643332b185b72cb59378. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/SEXNQ1700102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b864983f7913a3d0c86dc4ab84949ebfa82fbb6116072ae93848bbc6a3cfcd. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:03:31Z), 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/SEXNQ1700103.
Suutoo Yé Diyaa (Good Night) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80dbc66cef2341dbee0f91d056f7921e0d8cf709b7b2835c5203aeb07e4db7d2. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/SEXNQ1700111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efb9afceb45e8c93f8d65a3b26579055b30fa48aa05e4515a7990ab4628d28e. 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/SEXNQ1700101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea55ebc78fc16eafc4745e4e718d9c5c523674b2074f643332b185b72cb59378. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SEXNQ1700102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b864983f7913a3d0c86dc4ab84949ebfa82fbb6116072ae93848bbc6a3cfcd. 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/SEXNQ1700103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fc3723a66278588e30b92053f69dc331d430958e7c5c971da128d02b0a03fe. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SEXNQ2100205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb488641a9c10784fd0f902c84d3379608b92a2cc9e990638d9a265bce1ee68d. 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/SEXNQ2300110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d3de3b4b78f5312b134f22a595eece664a5aeac5966b4b143c450029a5cef4. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/SE5Q52002410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819f9951f0f5c2e2e887567e0dc431895cf4d501229c443e9860b3b3d7b108ac. 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/SE5Q52002409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf7b247fdd307ed5d08ec781813f2b4f1ad156549b9076c5bf838ebc3a13673. 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/SE5Q52002391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6c6b046271b0ecafdfe702bd9e2f9d076d8980a39bd10db2ca1677100a98d3. 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/SE5Q52001509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07fbda2e58bf577961a69b9b3defa9ea7dbfa268f20cce0963a3126ed10f7bc. 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/SE5Q52001510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201e3d6614d3c482f55693a71f4e5a696925b76266d8b075c0870ba3d2225656. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/SE5Q52001514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a54d50d241ddaab67facc62705a0dd036c608e7a9f0675ccd37bb0fbcb90c0b. 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/SE5Q52001558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd25b9e44ea21c453fee30f90ae9c5029502a225352cce83f54478d3c2c42f0a3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SE5Q52001491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa026c5f4b8885136728801c0a566c9365d0bbdbe3ee517435b589fbb2a449fee. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/SE5Q52001484.
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 0x67a21f72dc33a227bb1a16b8f0c103f5743038786e50b3aeafd78f220e483a61. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/SE5Q52002394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7cf68e4d29cb8946bdfe2e6500100fab24e15f6e7c40753586ab53e91e5b55d. 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/SE5Q52002392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8720f0a882df00ab45c21eaf0fcdf9aad2ffaace5728fd4f0cb5ec81b99aacdc. 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/SE5Q52002402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92475b0343edd5ee2c7d4eb4a80f60364eff741769e77a0da8a286af0b79cd33. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/SE5Q52001507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4af2665d1496aef1ab590e742f100b85ede18c377ef917d49813690a49d7aae. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/SE5Q52001517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a59850a8547d148d101fe6e203e0ebb62848adfb675dfe63bc6ea27b44fdb1. 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/SE5Q52001495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020e961d1987b7bea054beba7e55970aa050047d05fe13e446ad289e8c05ea7c. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/SE5Q52001501.