1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xccbac4b187b2cd0ee8d5edf765448beccaa82fff5147fcdd97141f93bc3fe4ef. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc13c2be-d4c4-4ec5-97c8-a4a2c96e4c37.json and https://artists.proofprofile.net/proofs/artist/dc13c2be-d4c4-4ec5-97c8-a4a2c96e4c37.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Espectrum II: The Avantroots Dub Techno Compilation
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 → block OTSBitcoinBlock must exist at that height 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 0x7353e4d0d827463066d844a8b494fafece4347c7746e1ade831ba91ff04b21b1. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/US83Z2111189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ef999ae6e62ae038e5254b92359f312a9545b57b32208d6c514b7afd16fc25. 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/US83Z2111190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6daeb895d4cd443686797f9648f46d660d3eaa76d66de6127c23bf6d52a538d0. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US83Z2111191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece0c3c0a5a2b74d78e49e461c0a058af4e1ceff2ab747f36c9e5caf47dc0372. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/US83Z2111192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d3a00d0962f2c6f63b1f49fe6df9ebd42e93e09cdf073e9f14136252c1b544. 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/US83Z2111194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587c6092055bc7cb93065354857c3f8fad0fd8601063b470065930ad412dc4a0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US83Z2111195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6267df25444a84b80ef45a45fbf820e02884e6ae3d8bbde43eea85b9ff21aa. 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/US83Z2111200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8126475cda63d90148d0ebf45a5377d3e722db53957a2adb77169e3446f2245. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US83Z2111204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec8df1921593c5040636b3286287035518aa082cfb3c150168b59d2766a4561. 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/FR9W11105768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118176247c35b3737751b6fa0c6737c9c6e6906e8b56d9c0e098f63d7c2abe40. 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/FR9W11105769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb15bcb42540783590fdf683556423965d405d6b3f48b3108907a4c6a85bb2f6. 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/FR9W11105771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1ad3454ab5810582a72032475421b676677d4422fa392e8507848412a05c15. 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/FR9W11105773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5205cd45c290dabb78af091630ff89f7ba311ba032e1ef7f57420c7e7f5d3e06. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR9W11105775.
Spectrum II - Colors - Fingers in the Noise Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe994fa542cc1f65ac9c5733b94171224ad52b303e53b933f8709d1c415df0b15. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR9W11105777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ee70c788375273a8fae4e575391a4e92a9cd129926141a77e3f1aa7fcf542b. 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/DECH60912580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2334cdf2975fe9ca4c737ca13340341cf57ab6e0d88fb243ff9153c3665bc4ca. 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/USLZJ1375161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fec1e041b2f5c1fec5e635498480f1a5132c2ee8a2d339cf702f1a66ced967. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USLZJ1375162.
Lost in Freezing Fog - Substituent Remix
Marathon - Dublicator's "Long-Distance" Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678d5c0d9cc4756670c34acf3833dd46cb56dea8ba89a14ff83929bfa0bbd55f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR6V81578497.