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 0x379f5ce312be281ba09be16a3b6918bf74c2ace0f525a6e5087fe5b2b0459c2e. 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/b8c94711-27bc-422c-aa46-1941ca4982dc.json and https://artists.proofprofile.net/proofs/artist/b8c94711-27bc-422c-aa46-1941ca4982dc.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 0x1ad225dc05b152b67e365fbde16a58e0bc0a41c11341f31c508b35c320378486. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:59:48Z), 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/QZNWX2481157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10804b2aaa80e538a663719af2bd44612982e20470961ccbe8f5761aa8fa48be. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZNWX2481160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5328369bbe3102350ba9dd966c398c1de2b222aff416008212a7ba1823d66f9. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:37:03Z), 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/QZNWX2481163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33bcc90a4b3c5dadf511eb358c05b0b108e255d39bc7af444a50d39695a8e3c8. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:43:21Z), 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/QZTB42412474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c95d1bc251f588b938e12cbaa8adadb7acfaf7a1deee598a0ca4fbd5a081bfa. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZTB92475477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f38f1ca3c0a4634f5ee6efc3566d7ae3ae439fd4fafd5acd93c9dbd3fa8d9c. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZZ7L2477292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c3d6b04576245134d07b2dfd52e3989f36dafb063c51457c558429ac021f1a. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:39:46Z), 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/QZZ7L2477293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9064d7d45ea5d88eba547a1c587f0e72542d04b3d2034018a3e1b40e2d3979a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZZ7L2477294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7917402c63933224aa1ad516387ab79b4aca511c0f7572eabe06897d8e8a5230. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZZ7L2477295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1c8ebaa152476e2f5f6554355a8ad227274e4c17326f8c18ece14189b45e36. 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/QZZ7L2477296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c54b0ffbd16da231de6a27610e057f080a12a04c3cdda6ba9218cdbb3af209b. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:06:17Z), 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/QZZ7L2477297.
Slit On Yo Neck (Evil Stoners Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0527ec4b1add9f9f287620ef6e687ed48e3c2461010bdddac06369bfa683dc. 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/QZZ7L2477298.