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 0x98569a8568735d9d09d1039a1b2a412eee57e903cb73a5e84b3df1336b7739b0. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/02dbf885-1178-49ec-b3e5-f5a0c40cf70a.json and https://artists.proofprofile.net/proofs/artist/02dbf885-1178-49ec-b3e5-f5a0c40cf70a.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 0xeb866abb3d61128b66863a0e800b0ef83f92f1d4682c347e981f54697e57c8b2. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/IL1380602397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5539be447ce1b0f822f0f764f6222174b926b6f81d6a07b3f76c6a1e323162. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:46:35Z), 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/IL1380602419.
Stanga (with Guy Haliva) [DJ Pantelis Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b377ded869a98edf84a00887f8344aa866d7241b7bd5402a3819ea840a9cc95. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/IL1381602398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6eeb71e37c9cd8fd73ef40f92ad01a246b8175ca95e1923ece5bcdfffea734b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/IL1381602397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa0213c27b0fb384c66c5797af10939a1197924bb189e17fc543b6a4649bd2c. 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/IL1380602488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4347de99611dc91fc0e0031b85c69d59e0bfc10a225f2522d0fabe86ed3abd5e. 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/IL1380602490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235ef3df0847d542437f87e150f565c1cab8333098ab837f0b0b7a8b3192d345. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IL1380602489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4347de99611dc91fc0e0031b85c69d59e0bfc10a225f2522d0fabe86ed3abd5e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/IL1380602490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4347de99611dc91fc0e0031b85c69d59e0bfc10a225f2522d0fabe86ed3abd5e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/IL1380602490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43f955489a405c43ad753eb7a4107188d24bcbbb964e92d0b0889630d0e784f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ITLA71800601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2746d7699cd9e6344b160dfc064c4c287c3267c1a3eccaaf09d293e26920d769. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/IL1380602529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26895a4ba3584a2f525cea43a8f075831d5b0fffa2789f8781b5e102c7ea699. 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/IL1380602530.
Inside My Head (Consoul Trainin Remix Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39e1ac1237340bd2122014af4c4495e248975e20f1cb5f69a00eaecb1e4e475. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:39:31Z), 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/IL1380602668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba51fafd79955308b784f519783397623d1fc7485408f62c19a76db8f9b045c0. 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/ROCMA1102944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbcf33ca6fdb50ef27662109d5bd94cc5b9d29bcaa1e5b3038dd0ad4267ce1c8. 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/DEN061700205.