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 0x4cbbceb02ac6729aeeac6ebc63d7cd6d42947ee1d4228438e825b57438bd2dd8. 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/3b3ca4eb-26c5-4cc1-9ec5-61b6386725fb.json and https://artists.proofprofile.net/proofs/artist/3b3ca4eb-26c5-4cc1-9ec5-61b6386725fb.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 0x521f22a99575cf726c2a132eb22de9f656b3a703b6e461561539f1cb708af629. 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/DE1A22108754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d5b4608f6a48fab4eaef3417877d171d80baea743621f6f82a9498e5691a97. 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/DE1A22108755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d089d15317e8a91e5abebb787ce04c40423ebfab5c97ddbb2dc35003495947d. 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/DE1A22108756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7376ec4121c5acea0375f709502689b789086855397ad9034e105be294beb980. 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/DE1A22108757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2275d96db6e61fc90e08834fdb05e35344e29e9d1565212b5aa5867ad137ee. 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/DE1A22108758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82d667ce43b97e51580979e65729cdbb79e4f67407f1d9da974a28270b171dc. 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/DE1A22108759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ee28878c75fb8182db4cc759464edbacaf5168b9a4ae6e8f6c2221d6d93f5f. 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/DE1A22108760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5982276e47a30d1f1120c759acdce1171995e6f4557f37ff1d0a74fc60c8acf. 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/DE1A22108761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0be221fa91a64fe004e30965dc1617a4730238ce053850e7f9571174ac1c10. 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/DE1A22108762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d80c29d58b82ad30c2b6f1467125d4e51cbde09778ed7c1ba643e0a7ace2df. 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/DE1A22108763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c4ea69ee395f2cea42d6e9af1ebb73ecb36c4ad5521eecefc89915175d97c6. 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/DE1A22108764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19d169421ea7b6c628fda3110918ab49c4a1147efb036637026e0d750b457ab. 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/DE1A22108765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09d369f719e46195c1e2c4b7fd250d2ae4e8ecb3f9413dee6f8e932168465c5. 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/DE1A22108766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e35e815bc7cb1cb0bd21091565f50fd3170d3c159657ae389dbf55f5a0d1c2. 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/DE1A22108767.
Kapitel 1 - Teil 23: Zauberhaftes Winterfest
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ebe67acf40626a1bb674b3a13f6237787d0c42c44aef4b2496ac35d1b8c5ad. 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/DE1A22108740.
Kapitel 2 - Teil 23: Zauberhaftes Winterfest
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5d005a8ff1c346deaa47e1ec1c843f80570c8c670f64e6ee92439021588093. 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/DE1A22108741.
Kapitel 3 - Teil 23: Zauberhaftes Winterfest
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a88ef683ebbc79dc05003cbcdbc3efaf3b2add584d541c8cfb66c0f4fc27f3c. 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/DE1A22108742.
Kapitel 4 - Teil 23: Zauberhaftes Winterfest
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0af81378e73ef8f579f3ea6058ae4028fda446b5d17c2701be76309660ffef7. 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/DE1A22108743.
Kapitel 5 - Teil 23: Zauberhaftes Winterfest
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f66c4e3d81df827d0cea2fe7e1884d1f613d6b67a4c66ceb170ca38cfd57116. 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/DE1A22108744.
Kapitel 6 - Teil 23: Zauberhaftes Winterfest
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a2b77e8d4d65aae1b5a9d388dae0008c18c2ccf1717c8f20b37b1359026ff4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DE1A22108745.