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 0x2402fbb2a663665a7a0aaec6ecff3f18d11d3f31450b7b79b38c6c0758d8788b. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d0a3d8d-c22f-41f3-b26a-32dfcb8a4f7c.json and https://artists.proofprofile.net/proofs/artist/8d0a3d8d-c22f-41f3-b26a-32dfcb8a4f7c.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 0x93d44e6037c8f2ba00e4263ce9ba71b22d5d877993f74a7c1b25f22038d1103a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/UKR6V2113673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082ba84cc53185020fd85bceeb3385aa288882d67a069b0b942fc87fd02baf86. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/UKR6V2113674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f08d4ce158f5698edcda5251ac94cd3782bc68578d2f53a6c3a9bcc95411fd7. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/UKR6V2113675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28db62efa7438e9ec216595bb86b7d4c2073205b06a8aa74398142ed8639e919. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/UKR6V2113677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c39d7fccc4f425811f238c2d834d58725d7da721729b22a27cfaecdc6e7224e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:03:14Z), 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/UKR6V2113678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1272b1d822bbc1137e9a595ecd715b530110a0a2a66beb02273aaf7b4393eb0. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:20:36Z), 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/UKR6V2113679.
Salli yalalla ala nabina / صلي يلالة على نبينا
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe55983edca34f7eee7d69fd574c55fa80aec2a25b96442c761d4f2af6334e90. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:51:25Z), 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/UKR6V2113680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2edef5fc69d68218d00842abbfd486a82ba14e070bec335fb106d6808844fd0. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/UKR6V2113683.
Ana Khdim Rassoul Allah / انا خديم رسول الله
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb767091997a000fa7ad4c280c44da874ca98a9f9cbde518c4d6f74685c77a41f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/UKR6V2114318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c51594217661f5bc8cef00e7aa1596fcc7a875b362b020ad56c72ca28a5e746. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/UKR6V2114320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1ef7a5650ed2e908495554e3833ce9d2e55143a6f9684dc683414c34cbb8e3. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/UKR6V2114321.
Salliw aala rassoul allah / صليو على رسول الله
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffdd67b5c533b81ebe23d8667fb8311a78f835141133206422215ac4aebe63d7. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:01:41Z), 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/UKR6V2114326.