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 0x96d440adb800d38cc7dc3474b16baa57de81f56a84a0c9c679215fec9c774291. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cf9a823e-ed8a-40c5-8f23-f25ae5c99047.json and https://artists.proofprofile.net/proofs/artist/cf9a823e-ed8a-40c5-8f23-f25ae5c99047.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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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 0x88e71f4d42b24a83cd2969131a31674e26befd293623f1f15b2562f99823a558. 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/SE2CR1100107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc714a3059965944fb2527c54888475cc04687baf24abd0c21e744c96da2c34cd. 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/SE2CR1100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29db0f364c968fbd89a2d33c88a10acf0d008573171a6ebbce9ab8f0ea93d1b. 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/SE2CR1100115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fd9247ea34d00c4bc5e15ec1dd721ae1014ec869e23f4f8e8e0f6e8c648882. 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/SE2CR1100118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3826aef2423c1e5dfb365079460c20ec7f7d5ce960449fd640abd9f9e9e5f51a. 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/SE2CR1100120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db38017077829ffc948bb7bebb27dd03a98fb1d61208c33c11adb702fb92b4b. 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/SE2CR1100123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23fa0060905b318be0087c4155ec1de0c01b74659c474b21502297d6759a22ae. 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/SE2CR1100124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dec01af1c65d95e0f471f695235fff3831a5c37d0d4d4ceba9166b3455b6361. 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/SE2CR1100126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542fbf0b6c05d7756d32f40ef2551aefb21554f5ea37e133aff479d7029cc86a. 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/SE2CR1100128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae13074a492bd6dedad9d7f18cef59532442f4c75c0e3464eda043d56a65cde9. 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/SEWJJ0800102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff19db242765c0249a53fba769c45dc1417f2c04cce317debc174c53522b1d23. 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/SEWJJ0800104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb903e7f0c1d7e7500526b2201b6a2d9fa8616b658bf2b41e15a8d65144918874. 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/SEWJJ0800105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71631a22457a852386f944c5ad3467d75711ea5eb6e8e355fd115a52d80d613c. 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/SEWJJ0800107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b80f707defa219944e3fca57f1e20af24edb94b867f6665828ad24e2cb05f3. 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/SE2VC1900402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193d9a16985802fb8c85c729501d86585bda17766ec884ad98fc86dba2f19249. 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/SE2VC1900404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2bc6a7fbca9224faaf8b2be31bd94de4ba82f1091a31720c513fa5556ec575. 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/SE2VC1900406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9743aa1f6067861472b31ff7b301c7786cb055fefce7c3004a82cf4a2513e28. 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/SE2VC1900408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c34b19ce4d695bab6bb945930ee6d13a9281b82bf48139bbd6d4a82fc654343. 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/SE2VC1900412.