1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x4310daaa60bdf9f62f1430819851d570a532c0e298cfb6b171043b85136bedbc. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2968c5f2-87cf-4a77-ade1-770103f3c407.json and https://artists.proofprofile.net/proofs/artist/2968c5f2-87cf-4a77-ade1-770103f3c407.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1619 Bad Ass Band (Digitally Remastered)
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x143318da18f4a42e449679671325126f7a1e15961bca8c11c2dd7c7f98b27c9e. 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/USGZ21349514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c522f7dddce841bf8cb4b598265fa07c0cf50ec0cfd378d6ddf5c8b9e1d51d. 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/USGZ21349515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e78599a37cf88dd86049ad56e990286c1c3c8165617744a711c51fb9c03e9c9. 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/USGZ21349516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ef162fcec61ade929f813ed3b8c5d49a7e8204e5a022533115eecad502ac00. 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/USGZ21349517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fefe48ee7e6f7d7d293d56f5ed70c7183ebadc1a2a9edbb731b52dae556ec6f. 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/USGZ21349518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa1d790eccbc28e68ecfb0ffc01c20f0a28884308b6741cf56523776156428b. 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/USGZ21349519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20af2cbd8db3308a474bd348965e7aa5ad36b6d984a4675d8b0aafd641fc8e93. 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/USGZ21349521.
Soulful Moments - 70's Should Have Been Classic Love Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96e1364767bbef0e19bca93e8d317c996d642f8734f6e98ca2f4b49e39587b4. 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/USGZ21349581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602b07c05f91a2c65d6552ac5fcbeaca241fddfda9d75d5a7564e9890ad7e479. 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/USGZ21349681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb833ddc83c050cf67d0497dbbf5fe8e38dd9f20c5e5f38d4b2b45bfcac22d513. 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/USGZ21349507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61fb2a01ce42c3d09a1fb1ecc9ad75b12af52bc99e858eb6efd51ce6118b1bfc. 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/USGZ21242660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914907fce11a64ec9bb63d3a2bc9fab7a2197466d9e795edfcffd53fb302f259. 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/USGZ21241422.
That's the Way It's Got to Be (Body and Soul)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7c1be472e1739cfb284dac7010b552b88590b07751b8374b3a942c6e5d6141. 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/USGZ21241298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc056b1ce81dc42c61bce368ef045ddcb92cefd61c27968d2957f02a87acca6. 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/USGZ21349724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f9093bd1ba616c4f75254e6a21158fd11e892c0cc6a4ff2be531c819780fa6. 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/USGZ21242663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75348168f424884ee7d93a91d99e63ff8803cc3ccfb3709d8c442f8a1aa54caa. 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/USGZ21138603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2815b2eb51766fbc66d656f9ee1e3720e84b1309c7919bde794628d807bc619. 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/FR8GV2258210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc6f91c13ad801a212ed155b9a5cccfa2d988fbfa10e58009b122eeafe0ceb4. 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/FR8GV2258260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cb9fdb8dbf701624fdab7bbad7dc323f1c9532a5d30d0e2472c3586faa3cfc. 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/FR8GV2258290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab9fe7f012083986cc12477ffff691d98561603f803945a34301d9dbb138e01. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/FR8GV2265350.