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 0xddde9689a46893d3084cd7cd397e0fcff49151c660ef3d957c27dcf531a689e9. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6213f915-acf4-4edc-bc9c-e890e7bbb5ab.json and https://artists.proofprofile.net/proofs/artist/6213f915-acf4-4edc-bc9c-e890e7bbb5ab.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 0x01caa32a0e575d3bab56b405396a6a401b9b00b3b6da2a92699ddefd3fb1990f. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:54:48Z), 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/ZAEI72400161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd327cc4f7bb300e084e05147cb415882478440cad84c224abad172dd25ad64fd. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/ZAEI72400173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8e79089a2d612ac25cad111c6087e1b9a6043388566ab9c4960cba9ddf8ff8. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/ZAEI72400169.
CHAMPION SPIRIT : BANGERS BEFORE THA ALBUM
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d92808d813e9a776ec31372c22bf91d924da1d8993c4276618d431c7d69e331. 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/QZTBE2390755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44ca8ef5768bf3eecfd37242da32bd7737fbbae917f8056d5281fbf6c9d9780. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZWFF2383356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd494b67c1e539faa47b4ef505d57879a35dedbb5f98c798b01f42361fe7be4. 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/QMBZ92420053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe403e7477bb7b4798f868fc0981094f0745a2fda076ba08662bdba85cd7b23c5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZA9WZ2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe403e7477bb7b4798f868fc0981094f0745a2fda076ba08662bdba85cd7b23c5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZA9WZ2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2e31debe84ea05b6407aa3f67bca2dd858a8c60f161c82afd90a6dad6be749. 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/QZK6F2444777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68d2d6c45c692d93cf8b23e0e3b7b7442f5e6bafd0a739f8fcf5618f0a74103. 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/ZABY02100024.