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 0x99f7d0f2cd4a3c96bf730ec754e39bd0d717bfd6b0a2a21b4708ead7be7faae3. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5bceaa1-818f-4ce9-bc14-71bbe2467124.json and https://artists.proofprofile.net/proofs/artist/d5bceaa1-818f-4ce9-bc14-71bbe2467124.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 0xda841a317a3580a5d55c91eb11404f359f13efb4e65dc892a52561ea26c80ca9. 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/BRDZB0800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec84b377e0df8237fbb302bb2eecbc242d3596a904c95b28ba04b9b11deb93f5. 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/BRDZB0800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17596fd21f558c7e63591219b6be1b3864c2e84cd33bf7ba4a1270b10d52eb4d. 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/BRDZB0800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc857d99056a5dfceb338814a6654b010779153032567c8dc63342002375ca85. 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/BRDZB0800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8656ab9d3163d0f5e4bbeaa1a9adb8810a3d6ac9fbd5992a92734e81ddcd1f08. 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/BRDZB0600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894bced164ed65c95de986c475bf652689d99804ee337228d119d6f1d1eefc3c. 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/BRDZB0600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8a9877fd515f9f6085f22672cc576f018d5a01bdeb72e57ecfd5c6899647f1. 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/BRDZB0600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e1b508ab64f8a72309310b8ec1071f4f0949d4ff410ce17ad5b9f1cea572ae. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BRDZB0600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28308b203b65f0ee0ff2d680eabad4fba5c94f30a1af5c5540ca4df61f2e1a79. 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/BRDZB0600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf603df5e25f09e479ff480876984c165b6232764dedc0ea138ea01f3cd805f7d. 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/QZGLM1910001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae41a81a5cfdce7420aaf3d385226bfcf661f19c842d9106325bdc7c0440d96. 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/QZGLM1910002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26e334cdc961ebfd3ce9be23460345c45e3f97b7c685c76e5a3cfb28d9e898b. 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/BR4TF2100531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6a405aa7b32f96c007e47a4b179f64924967b35ad12c3441bb1f520f8abbc8. 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/BRDZB1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd467e848e235ecf5781ae6799402bf5a58c4f195d6906f56d0b8d18b11aac56e. 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/BRDZB1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3ae54066ed7f8ec1fcb04863be237d8c735b64a4a677f274f41979932951dc. 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/BCDPM2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0ab4a732ff15ac7f7d37037764b947c8cf515bc75070e7331009cfc248db0a. 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/BCDPM2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b510aa30addda6779f7b9724c48126ece3ecc2819417d7d845e598401245e72. 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/BCDPM2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce274c91e2fbbbe05dfedb805a9abc42e181c662ca8b46ef8bfa6b1b50fa859. 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/BCDPM2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d29586ac34c9f03b54afcd780092b715871e31c4b83da115fe46537d8acb24. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BCDPM2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6537ea166958f6597ce60fd73c88e86d8f84e938c5915fa3a395de990aa52b47. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BCDPM2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3c322b6ca0d63052e3b52b8f0c726c51ee25c7fa92830a9938b51a08a0f883. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/BCDPM2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee7e66a35e1bbcfe92720ee5004c200a44706c884896cb625f04ffcf85501ff. 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/BCDPM2100001.