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 0x110b183e0cd36b16eb9f02214fde11bcee4fdc4fc45ba27113b1eeacce23d6fa. 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/bfe43698-b53f-49bc-a71a-548377e3c7db.json and https://artists.proofprofile.net/proofs/artist/bfe43698-b53f-49bc-a71a-548377e3c7db.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 0xf9adc4a6d0491a5d91be510b2e16157bc11f308b517666602fa0f1b38a3534c5. 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/SE52N2308301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28b4bfb08ee84ba5d77b000102f339b04e7ad8f626c730b5a1d9ab3a3da8c32. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SE52N2308302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ca43232bf3b95e7706cc783a2dd3f9e061597e181b8ab04178b47db5c07e19. 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/SE52N2308303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b060af54a24d62317fdda9665ca2489f3984c468bd76644565ceb62547deaf. 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/SE52N2308304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9854d0573b6b3d551dc4822b7cc15f80596edaadb002331bb96eb207ec97b17. 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/SE52N2308305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1258065dfdfdcd3364e5a80c37bc9ba4d3d2468ea1813e678c288ed34b6c53. 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/SE52N2308306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd945471e35b7884f16048d4e818e14a87b20c909cf9c5bdfe6d226cf0b7bf3a. 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/SE52N2308307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5452a3c28f1fc2d064abbe625812bcc4c28ed7610653a79f20d5d9d3d69cb0fc. 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/SE52N2308308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0037182f67c22de2a09ed348bc9eb64e59cbc306977df192612ad7f2fad4c480. 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/SE52N2308309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61224dd1e54308cea6f3c36fce90b43505d4ba220cd827462594af4f348e2c7. 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/SE52N2308310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa984143c0bd138b0302c8d2eb3674425393681cb7d8fbe41af28a573d6507c5a. 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/SE52N2308311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e66161de66a10186c2f7cfa5865149f8339346aef5efa4fdfa265cd6271436f. 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/SE52N2308312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ab19c91f990aff9dfd066cdf2b4ae46570ae9fb25c4c51c0bc509874de91c5. 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/SE52N2308313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6069e1294df2faed2c1c48c5db14a00d4923320ba41b12f9aef1352f0cb40f27. 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/SE52N2308314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6639d87e039833d148eda5f7d25d0eb523f4a542ea7c7ac95107c0b05356c783. 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/SE52N2308315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19e01da70b880e563981cc1547e5f08e3643759b74584d143e9af4b001d46a4. 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/SE52N2308316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88cfcde06a1ea98ba5ca4cd42590a74320b81858d3393f1fc8dbc97ebf7054fb. 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/SE52N2308317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dbde246c994bccd96f55e25de89e14032c603f5e23687e3f2e523364d4a97e. 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/SE52N2308318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe4669e4f63e3594f900b9a1f5bca5d8df9fa3b2bd8a7bbaca736c3dcb3d0fa. 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/CBC6H2033163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6c75e85a8d59f1865bacf9a9f31a995ebf7ca825dc65fda5e404183cc0893f. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/CBC6H2033165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66b244a0321a5f98708c036f7bbe0b28dac61801b05017fbdc73eb7c9a4a4ab. 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/CBC6H2033167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9944b3853fd8f1b8a756c89f22b0d141955125d52bd3f3f0312c17d4af7a66c2. 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/CBC6H2033168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4c73e35d0e6443eab4bc4992f9cbdf461bc9350a51493340ee3d350f44f593. 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/CBC6H2033169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2ab808c129a625e421f454a3f92da459e789efaef92a57233033ab929bf19c. 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/TCAIN2424982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4d68432205177e1b4fd98a0fe17a016eae7547d3e5dcbbaffc2a4710db3878. 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/DGA0H2416441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c553088ae10dd44ee4b16ff885e7c2452716acfb64a0cc5ceafe2fea979381. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZP7F2427559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c92cc8911a1391f0587b8b41599a4971d6c73ca1a28d39f1660f8933a35cd2. 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/QZP7F2426567.