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 0x90f4a6534cc753c1a5d0e11fdf899d3818160dee9899419678eebbba6f69f007. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/560f9dea-0ba1-4a86-b353-21b0e590d14f.json and https://artists.proofprofile.net/proofs/artist/560f9dea-0ba1-4a86-b353-21b0e590d14f.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 0xfe76e1e12381eaa5ee6b74fe286876391771affca9bbff416a8b8adad5bcc2df. 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/DGA052441987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9f127fd2b2b6ef240a78499b5390833f6d08382df52b8425010089947eb08f. 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/DGA052441988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c5e9916041632881a908b5da12597f8cae14e34b3c30cdced8f56a133505ced. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/DGA052441995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe9402ee41829f7b2eb87d11ffa3c6e687a80ccc667632c6cbf464d2e6fc53c. 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/DGA052441998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5983ba6919a24cfcdbfc5af5bd95560092b51f3db4e0386489ee8c96f39a2563. 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/DGA052441999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b253cb48f37ac88b3f518d85d979524b42edd515dcb46bc485131fa77ccb729. 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/DGA052442000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1827ec79e4b9764684c8fbae44b3a3f773af236c062dcbb5c4fc3004e9701230. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DGA052442005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea1d82b5816f62ca9abf1e944318cfae6095526608463b7687ae62840b4902d. 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/DGA052402252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30fa2ddc526b0aad20f607841acd649457ddd7d5adceafe1c50108f1505f9576. 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/FRX202412067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635fa568108925676b401a7f8c399951c3244b7800c71a54b2e9cce6fa8e1969. 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/DGA052444962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0ea937dee68847ce233b726d4a26d82760777016c20f5d34395bfaf55f83b0. 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/HKG732249766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812275476d7d5e2f5813efa35b6c29655a64ad7319bd22c28f4f63669d836399. 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/DGA052402275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f431359684bc38f0e21408ad103f46fa450fbbc7b4ac866a361c83ba2b199fb. 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/DGA052402276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ce5e986282d0cc6d96fe79f7480dc8039efda64ef22134deb7c29601e6dec8. 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/DGA052402261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8484524d4e5997ed363a3df7d80396bce51665124cda5175989e7b216efd67c4. 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/DGA052402273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4347a589ce4f0b5a84aa8990c1cd846a8a32fa391b1940b6b6b9b3e39723728. 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/DGA052402281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93218a7c3843a0ed74d59dca9ca9ef5e592e706fdba438406d9d206a24fc6ecf. 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/HKG732116546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24170c699d2acbcd3e8c156823862edb462870624fe18f534ac8eb472fa18bbb. 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/DGA052402268.