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 0x388e8bf08d97ae664a19e82513f2176844f4da088d22635f07a95bf4fd16dd2f. 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/b3e60399-8076-4b81-a7ac-644c499e6d1f.json and https://artists.proofprofile.net/proofs/artist/b3e60399-8076-4b81-a7ac-644c499e6d1f.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 → 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 0xd3a897f868541637ff422db0f07f30681b4b5dd44f09dcccad4b2cfc9c8de714. 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/ATQ151200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fec66d78e2a0d31ab6c27ebc26654a826aeef3a36f2fd4851d23caa6c449b9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:15:00Z), 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/ATQ151400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165c1969797a3a1b086aa1a186fb0fd7c2661e83447f7f2d0d65a904c4da7082. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEB161600302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16071856c7a01a134f066c94d745365564bddd2ad673d8fe144e51c2fd80f56f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEB161600303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45da6c599c48d6d583f06c938adadc199fd22ac9110b100e3c96437f1474acc2. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/DEB161600310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98994153b2e4d07763ec4ae27fd7a6f8ef420e9d4a750141fc4a346af23730b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DEB161600313.
Eventyret Om Fossegrimen, Pt. II, Huldefossen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114fe504dd5968db5c0011443714768ea3d819271c849f5aa0eefb919e634c8e. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/DEB161800604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba9aa30a6a3686e3bd80cbac3cd77ae314866779410b4a21c5f121bff5ee71d. 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/DESW62200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d76ddd8d36faee68bf176a910a3ee072cf814b84a9d80f3c42ee4a591321a7c. 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/DESW62200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7cf35f2949933972010ec5b578cde27b18266c9ed6646d2474ef37a3457e5d2. 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/DESW62200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55bfdcede3107876f0f2d57887f51f44a9c78e8b6446cd468de559496a2dd8fc. 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/DESW62200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51748f510291dc45b0c31570042dacfdd720a46544c3dbbeffcc2c919d3a1a6. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/DESW62200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96034f44f763636080f366a8bcde22ce51aa58dbf0d9e1f6d31cdb36bb79464d. 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/DESW62200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46dab594224df404508bc76b16072129afa5f644f546d9dc5151cc6d706fe329. 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/DESW62200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aae18f1080b77474d5cd9a85b427093510ee94997dce3167a1472621c885ff3. 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/DESW62200049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e6d30631e790e132f0a9c6f6a65cbfd5956bedee7063cc7c193c94efd35019. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ATRG72503601.
Bergwild - Herbert Pixner und das Spielberg Musikfestival
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09563d350751f2ff2a6148a498991dc53d314f3c875baf7e1d811a34c5819bbb. 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/ATQ151200008.