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 0x2889422a9474ffde14c9d2c9c6f104fc8b01e4c0d0b91aebab616da4e072cad5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea620059-ed35-4b34-bb0d-de7debc08663.json and https://artists.proofprofile.net/proofs/artist/ea620059-ed35-4b34-bb0d-de7debc08663.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 0x43a90c7aeb1df0bff3610fe6cfe4d8c054d38ec18e11b199879ec1fabbdb2e60. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/UKZGC2308482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc364156b4bc92a6d2208b6ac6b675e9273585b56d337524f26ed360ef3deb925. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/UKZGC2308822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b431dec4fa6f5aa391b2868afc0a6bcc567ff0276f453ae3661d16e36d208b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/UKZGC2309618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa985bdda857922b7ce6129c311356bdfa91d159e0fdc5a674edb82f4473433. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZPEW2444551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a741ffe97d8e2d15b91bd6dbfeff916cd29495d1eb0857ee8c121d414120fc. 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/QZPEW2444552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2892a7544c240722b5da8d3afdb10fad57722ee57e34898239dec9c196a788. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/QZPEW2444553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda1a14d250c633ce8f23ade8485c8bf564d7d4d22833cc3a3a2ecf3a8123729. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZPEW2444556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141f0c38bbb52a9fdc98e65f50d7f12015db63557e157014fc37dfb1c1983513. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/UKZGC2404474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab763ac193988fa1f932f7b2dbaba91d35948955fb1d781359dcb53fa68893b. 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/UKZGC2405719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a4ed242fb432b16d14f7bcfcec18e44715e3370e6d9904f3d36ec2770c6ad2. 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/UKZGC2403885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4403e37ad2994d761f42d56da7e912421ceb44a9f00daf6915aaca25268c997. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:43:53Z), 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/UKZGC2503605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5affae9e3bed1a9c019d8eed18514379b58d691b11ec4182fa651eb65ef81b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:57:01Z), 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/UKZGC2503606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0c8d71605c4a1ee0604f9ac88eae812e5050615b5272c9a27621517d65e79c. 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/UKZGC2503607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d1e10326426d8b0c6efd79273fa7649a80ff1bbad63e880159b220d1ed8de1. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/UKZGC2503608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57946c2976ea533a08a7fa6920956254529cea119ce6b7c5eb1f5044a08fcb7a. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/UKZGC2503609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e3965f99182783c659d5353a3db3bd22eba32a036259662412e3c661c8da4e9. 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/UKZGC2503610.