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 0xcc56220b9ea4df66dff708494c7b1ba1477b17f1d4bbeb194a65aa14553829d5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cca5bf09-21c4-412f-95e3-64d79d194f98.json and https://artists.proofprofile.net/proofs/artist/cca5bf09-21c4-412f-95e3-64d79d194f98.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Swish Swish / Look What You Made Me Do / Famous (Medley)
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 0x15122cbb13e674ba1aca3b55ffe2b77903fa47cd865d2beef80c554baeeb450d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/PT3GL2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d4b1c0c44561c67206254b54814401f0e03e30bc5185688ad7f6015c66fd5e. Chain 2 (Bitcoin): anchored in block 957558 (2026-07-11T11:36:38Z), 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/PT3GL2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2c55eb546b0a4e89e5d8d1f5c5f5723bebbc6d435b78cbc3b3a8a4e91761d5. 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/PT3GL2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930a73031af451765af0ddc8cc6b8238712b3f12389c18038d5f4effcecc64fc. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/PT3GL2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29292152034e4798a10c514c6154b4e11538a9a5c73e3b503e6e24969de4981a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:25:08Z), 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/PT3GL2500003.
Tempo de Acreditar (Um Hino Pela Luta Contra o Cancro Infantil)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5bc03a6319eac140a7fcd4989fa348719095906fde4990eb498f73f61b3eba8. 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/PT3EB1700012.