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 0x3efeba3f50fc43f5eb090ab091509671277ff29557d6bbb266b57e9d6c3345be. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/62314d60-7de3-44a0-a488-d9ca7161407d.json and https://artists.proofprofile.net/proofs/artist/62314d60-7de3-44a0-a488-d9ca7161407d.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 0x42d4884cf5bc4b547f86f842b66caeac0ae5c01495a16440208936cef9df4f88. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/BXNT62401703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b4e7503cd820ad8bf141c9379fcebb0ad619aa673092998b66be0b442cec33. 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/BXNT62401736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee804eede4715c31be31c8d5bb460e7dc338952f0187a7c7b37edca474c889c. 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/BXNT62401745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c8f3d1a7f0a419b15b28aa02d48abfbf26c02aad4e6dac53980b8d728c6e55. 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/BXNT62401742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df4c105b48282e39aabb3666243e4d84ea1fed70828bd1b582ddf11d1ddacff. 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/BXNT62401727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe615282c722e74f6ff8f3c2ab6726675d09a347f9f64bad4dba15a5205d3c287. 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/BXNT62401739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a57142348973e4fbd9416e86314236b4b0cb3d8adc09615e22b0e9135985a92. 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/BXNT62401733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5068922e77360f4501adeaf80a9486b4c077ecb2b8fbcf218e36369b9b696c8. 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/BXNT62401724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b505a020148592028146608da9c8f7fc6e6ac88b07488b8576e75ef6e5a1858. 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/BXNT62401730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c1ef172eebfed451dc81faf6f839d69f75b555c1e8a94ac646c12f5a242633. 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/BXNT62401700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c8f3d1a7f0a419b15b28aa02d48abfbf26c02aad4e6dac53980b8d728c6e55. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BXNT62401742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee804eede4715c31be31c8d5bb460e7dc338952f0187a7c7b37edca474c889c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXNT62401745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b505a020148592028146608da9c8f7fc6e6ac88b07488b8576e75ef6e5a1858. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXNT62401730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a57142348973e4fbd9416e86314236b4b0cb3d8adc09615e22b0e9135985a92. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXNT62401733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b4e7503cd820ad8bf141c9379fcebb0ad619aa673092998b66be0b442cec33. 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/BXNT62401736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f943b2471b8812d6fd2f92c33118b9f453d5869101dddf8d017ae4518f1e32. 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/BXNT62402064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d4884cf5bc4b547f86f842b66caeac0ae5c01495a16440208936cef9df4f88. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXNT62401703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5068922e77360f4501adeaf80a9486b4c077ecb2b8fbcf218e36369b9b696c8. 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/BXNT62401724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df4c105b48282e39aabb3666243e4d84ea1fed70828bd1b582ddf11d1ddacff. 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/BXNT62401727.