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 0x55ffb9d9477a6d4233a4f704ed2fca0d3b3aa654dea70d373f16d01c3c6e8b29. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0fc6929d-2b42-4e1e-a710-e5ddc1a6d9ca.json and https://artists.proofprofile.net/proofs/artist/0fc6929d-2b42-4e1e-a710-e5ddc1a6d9ca.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 0x562c2158d4105ecbdecfe5dc7410a101f8f5fcd62fd937f63217fe01f1f50711. 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/TCAGM2227396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf769e64f4cc9e08cc10c2d29c2cc2e840ebf089305b33a31562b063aa4ef4f89. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/TCAGN2245112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1041ba7b19205873664f62b94a4ea4f8c2e8ebcdcb01a123fe1190cd5e07420. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/TCAGN2245122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de99610dc0bd7327d7268d3256a8e581ed5bdd94a046fb0a5f46dfacb5e29fd. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TCAGN2245139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abae8d218b2118245860796f11c5b02125e2fb79fddb3a4a4b849c5c7d0ad4f. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/TCAGO2291816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24ef1d257719cebee5190be3ba96947827f17f6e9eff179b2465cba0cca2770. 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/GB8KE2325531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb0865c320d0ae189a64682bd48e518c19c3b2d234076f21a7fd5d7566223be. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/US83Z2340875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7ef4e3d219e06688f669d8d4fd586b44bfbed90619cac40e33dc15025f4712. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/US83Z2470626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7ef4e3d219e06688f669d8d4fd586b44bfbed90619cac40e33dc15025f4712. 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/US83Z2470626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d46891a20caec866710bd59478a0f8808107d1b13ff7cacdf39f3169a095d7. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCAGT2399051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b60c9936b3a1f5d7ce33ca77165ef329aabfcaf6f593fb31360f3d12902d48c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAGQ2201736.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4f081ed38aa9b8378a74746e957cc217e8c5e4aea5bc67bb199848ad7c9d55. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/US83Z2340876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5355315ea33061b5a71f9b93c7af17e9096deda10d549ffce8b764a2b102adb5. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/US83Z2355626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcc4addc8b65c0cce8762adb94fc23a98dc84086b23cc1a89a62d26686fd3ad. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAIN2430160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df09ef5bf0353938943abf07146a2b8d2744a46ab99ec82c8c0949a411a0c66. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAIN2430163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacffd7fe58362698d353c80a2e47e59f864b1b48884a06c43f3ce9c0e2d19993. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US83Z2491408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b345afb1780a38d3799fff1631e6103e1baee931c1813e08a983cb8d4690ef7. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/US83Z2408870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed601a7c8c85dd4fe40c25be6a5377313df37a4f8cda470783c958205f97da5. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/TCAIW2438402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833ea50ab63e02128aa4b160471c7b801914810e72dea1230162c580f0f9ad09. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCAIV2479401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4ebabf6c842eab8ac22478f87fe386ffc1bc20062d5fc34611d508b07eaa1e. 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/US83Z2501260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636e1767fa2b9db95fc6b2eb2b41bcd35a7a892b008a4a9946c8cb37c35d292b. 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/TCAJD2456380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43db80a319cc5dd73eea5278bc5bda85ba6d8409ab23771cdef70394308a97d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAJD2446623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1224a8d67149fe4274e7aa89464e1e03baeac356384d43028993cd8a36026388. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAJC2446631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04dd37ecd49ed8db2744f90783cc2dfe9eb53b52eb19b4cf73e064ad1055ca6. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/TCAJE2522788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a45d3e047202df28ba3c53c57029a0155635668fc47ef452261feb343b58c01. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:51:00Z), 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/TCAJE2522804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f67ec2cd3613c883e09f312da84049bb5c4144a17cc3562e738ba1c7962bc7f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAJG2530822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3b48712c46c7c3a432c253528d8e94b8811866ba0047736681e580d7afb2e4. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCAJE2502072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce29d8c056c51bb778e4ab710f36a56e9a53cc9ca68a870e547f843aa67dc33. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/TCAJG2540366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dcc39c8dcf0f59552cb0ae7130ccc5de637a036d78d264e49c63ee542685844. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCAJG2540371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8f9abede832b6dccdc60881f3c0b84b23faafb35395bd8ca0efc1e277395a4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCAJG2522204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb994011160f9cfa86a1241eb740a946b6ff91bdb0856d0b41d9e784137dcb7c8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAJG2522216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3b72a89695e556d9741daa5a73f82494fd038f16ad848e50b5e68d7a3b71bd. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/US83Z2516716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eab19940866ec37d981b15cc72375059db2ecc3b73585d754892de78ce56860. 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/US83Z2523834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53086c03e1740f02573f5cb4a18518eb33c6088ab4f7feff2bba15b74b9f4fd2. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US83Z2523835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa679b0d96cc5768370a0cac8aa1333592809d14674df0ac7aeeff9a4b3ecad0e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/US83Z2532342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe179a1025e3bac5fd76287f5c96fe4bb102be1e4ed516f9cc3c392984330124b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/US83Z2548658.