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 0xbd87dde560314fc2181a811a375532cacceaf262f299e4aa920de7f58a9fa5bd. 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/11871482-f7d4-49be-8b29-3d4ab30ef2dc.json and https://artists.proofprofile.net/proofs/artist/11871482-f7d4-49be-8b29-3d4ab30ef2dc.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 0xb0ffefcdb1c5293fe7052fbb5dd981a22fabf7ecf941c2ae09ba45120a9cb6d0. 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/GRHV10900179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6247e108b9d01244998604b6849ab8b8892c57856b8ab84dfc8e2087e57ab3e. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GRHV11100073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25054608c987db165019119c247cbd8f8e75520402cbbf91d967773ab0cd63c9. 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/GRDMM2500997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe176c764c791f31479071d9e2a662633bcd65f99149fd8873d543ba8fe1d20ce. Chain 2 (Bitcoin): anchored in block 957634 (2026-07-12T00:26:43Z), 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/GRHV11600260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7a4fc5dc65e8d0bfca6d57f46233f3c2e005266fa39725d8f0300b1c35255f. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/GRHV11800289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419d586cd6ec86ab50269102825854af39eff69e6cc1f5f54ab18f90c630b322. 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/FR59R1903439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ca0fd14a166a87d5f7959d61ff7d0e6a995a7e5cc8fa3b7b6fb4ff2fb44f10. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FRX452088939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58363aae5c5dbb7bb589b7d4d3601a63e344a4d9d129a79a666717b91c411d84. 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/GRDMM2501649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a817bdc3e22da34a7099f761abbe59301695a492c5b1c7e97c3631491b04aa3. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:26:55Z), 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/FRX872134101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39fc437327aef80a79a80660f6208e778f5a3f40b808444b77255860223f02b9. 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/GRPT12300103.
DJ Krazy Kon Presents Greece Mix, Vol. 23
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4daba0775cd3f316d1f58ef1a4ccd5a45f5f3080473e692102059d93311b409. 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/AUXL31900279.