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 0x23ce1245d6a8c1adae8fc3f97895350b8f3673dd24610a2b8ebc39f97d5ded96. Chain 2 (Bitcoin): anchored in block 953710 (2026-06-14T23:32:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e6c8b85-d887-4006-b45e-17a7155114cb.json and https://artists.proofprofile.net/proofs/artist/7e6c8b85-d887-4006-b45e-17a7155114cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Inspiration (Ilias Katelanos & Plecta Remix)
Taleman - Dari Lubov (Deaf Unique Remix)
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 0x115b72129bd36a885d9b4610966e1ad602bf1321794fd11730c3b942d169038b. 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/US83Z2470552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b729cfe25799e157b88747945ba29687ad6963b3cb58546939d8dc8e9d0ab0. 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/US83Z2339551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23cb48386b6e4eabf84dafdaeebb4d714d72e0b041f38864d8d49b594d46ca3. 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/US83Z2339552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547030a9ba95ea21f9a5bc00ea2280a8c0435051db313f630847b14fc1efc0ff. 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/US83Z2320251.
Simple Question - Taleman Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851f31d61b2656b12e7644438c06fe378d91621bea475c7e0d2585fb0e8dfa54. 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/US83Z2320252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba2fdfa7bffa9be93022de2a23a3a897d9cb6d13ea6dfbbc9cc6551de2ab0ea. 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/BEIR42100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d5d33ff7d27d1aa44cfb47d23f60107ba66d1df7b341013bdf30f3e0017f66. 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/BEIR42100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1756c01f272b10335264fce98f6936b0e444dc1dde1a1c11bdec5cb927864495. 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/US83Z2508445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac248da649ed2599bd1813ae66da997891bb6e013e4dec1675ed592bcd8692a4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/US83Z2511395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d80cffe8d45bcb79ec0dd9ba455edf12dfda7c7e7370713a0bb3a2d797d023. 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/US83Z2403948.
Leaving Places - South Bloom Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957597d6033be7d5343304046a2dff05878d74c690ba0fce55c0d9fa239619ba. 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/US83Z2505077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0476d9cbe3e017b3e2cf17e175be9babe8e6941561c129867b378d53917d1c36. 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/US83Z2512401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18da89118fa76c11d5fb90d922d0f0e79f516c667e95d9a4a6c5d345173dcb0. 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/US83Z2512405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04e11654ffba89c03db6bb4327736986a00e342c01ba56413dd692c37d1ea6a. 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/US83Z2512403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87b2bcd56eed20fd9a2f98e03eda87739e91a4dfa448384b0cecd23f32a999b. 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/US83Z2511820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a583911f77a7b478f4f4cf5f08ba6c25fde6e03fba4c65828bce047335bcc3. 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/US83Z2511822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc783d6e4eed15e4e905ce1c908805770d3433571f23f6f99875c7f70a96d16. 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/US83Z2420583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ee46ea499b6cb8aab3be2647ae16f553b697e67d34f2d02d00c73c1a330c88. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBLV62400266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd009b43b07cbc2cbb33bf31bb8b546f8a5f564ec9f375dd33e302fb4b7a155ca. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/GBLV62400267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e40da1eebed98535cd6ed359d18b054ed5d0d3cb6b1a7f74ba421ba7be5d2a8. 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/GBLV62400268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ab1c9c7c628a674b9069816f2aff4bf556f1b607bf9c1a6a644557000fe6cf. 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/US83Z2213105.