1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x9c6ead2c21dfe8a75d3191c17c53b1f985414394c12b16fa78438d149e93fe83. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/53e0c743-7e9b-457f-bd1c-73c382b10a89.json and https://artists.proofprofile.net/proofs/artist/53e0c743-7e9b-457f-bd1c-73c382b10a89.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Lives and Loves of Kepi Ghoulie & Jerry Hormone
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x53f8603598d6226833f0caf35173da2e116886301f122668d79494561f670efd. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QM4TW2526480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6c7ed213062c3c5867143a896ff6ba52db8ded9521540dff682ef85a136cc1. 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/QM4TW2526481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf896da9cdbcfcf8331081251dcb9388021b833f8ad0bba40f30b78ee84ecfb3c. 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/QM6MZ2533338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b724f3bb1afe4a28f0b948e37d1c3c0d0492dfb8b4f562d6bc66bdec811622. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:02:12Z), 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/QM6MZ2533339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2c8c58d02559619c56f1b53aa7e695a2b299208fff6ca87ce91d52e6c3a467. 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/QM6MZ2533340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f06ffc80519b3ac84bfb08a948647ace15a3d4775fa3a731b041e9ca06bece. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:20:15Z), 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/QM6MZ2533341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb999d1eb305748171911926a7d47ae000c257bbcb709a5a231e4df2405226c5a. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QM6MZ2533342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ded7d76907926ba6900f4ecc50a51c1bcd2699bcb6c5c62b94fcddba636cdde. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QM6MZ2533343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f47cbf8b21024608c80c91ac5a9a0484e316a2f8088ee27dd715f2ca77180ff. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM6MZ2533344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd820db96efe08348b7c0551e8185a826f5947b9d3c4e558ec5dc23bc587c052b. 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/QM6MZ2533345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b68e8a87fecf4e3a005155a404114add5d5498ad3b3151bbbe9e1318d9247a. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:39:04Z), 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/QM6MZ2533346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82853c576c78cd12533dde3fa09a5d7b27907483e5c92817a824058a514f0992. 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/QM6MZ2533349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71b990589589559078f6efbbc3094acfe10f9add55a0f4743cd94d95d4cf680. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QM6MZ2533350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b36571f3d92cdc609ff804e5f9026a7cb3d09f2e2b5fbd4fdd0b1cb51cf8759. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM6P42547361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5b677795c918e0e23a720fda8642e216c08f11aef37fb58db958ab2d60e4aa. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QMDA62500341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb951c0f414fbf023f48854214321e0d14d4b29c1697860ffa9959c02679b8dd. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:57:52Z), 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/QMDA62500342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527549c515f7940be6b12841794c7f72bbb379032caa73e9755c3259d23a6415. 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/USDHM1509742.