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 0xb46ed0a3cb5afa0c700448e6ce99805211679ce8103bf7fd7b02d46543db616a. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d0b865b3-5afb-4bf8-b382-fa6f3f1e838f.json and https://artists.proofprofile.net/proofs/artist/d0b865b3-5afb-4bf8-b382-fa6f3f1e838f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
marginal da city - Pt. II - Trance Remix
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 0xa3e769da8fb03527f633f54c9e6a3e1ffe6cadfe147dd49051bed5798ab1803a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/PT2DY2400421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4100228810f079bb3a074862d01ff710c538c184e3f08bc08052e2dd9fb2b537. 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/PT2DY2400067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21acd32ebcc5697867a232c8d8f743343c3183aa780f8b8747fd8efa17268ec8. 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/PT2DY2400068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc852a851babf839dd281f766879a3ea1c7f707e4869008c33c9464475b03fd34. 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/PT2DY2400069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e89385c754b98d7397ea095d7efc35fd5a0a8effa65a6d6af6e5ecc974640ee. 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/PT2DY2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6191e9afb593b11ed4bdfa72a77d091e1b7627f09319b7baa2225c03a17af3a5. 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/PT2DY2100199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113cded9f71eb52d418fac0589917cc64a6bf941fb2b5812ea327da9f82be65d. 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/PT2DY2200200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc7ae10b0df627ae51fe13b81e742303f72cd8fd8f0a8c981a835fc98d2c64e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZTBA2318118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e3cd344f50aa81578faf95549488cf345a6b377a17baeb549bba179248b682. 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/QZTBA2318125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b688af4616f85c2882e12f80d55b10b2907d3ecb6660f3b83f1f12e682af4be. 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/PT2DY2300183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b65df485f0996747186ab745b9b9fe51fe55e3a397de5107c80932a4372aaa. 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/PT2DY2300188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6976c12c8eef20ab0aff4ee2df99fac88e7bf347f14dc29f8158f6ac4cafa1c. 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/PT2DY2300566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bb29924bdd163efa3dfba602d0b13d7707836d066766bb508471f2b30cfc7f. 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/USANG2195385.