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 0x145f69af68aa59d2bb4eaf51952f8680c3e27d341c12b367ed5b643b93750af1. 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/f60022ee-61ab-4a41-ba2f-9fe91dc3b1f9.json and https://artists.proofprofile.net/proofs/artist/f60022ee-61ab-4a41-ba2f-9fe91dc3b1f9.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 → 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 0x7d8f4352dbf40449a1e88e23b1c5c495d015baeda20b901556a689f8f7c15f72. 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/GBSMU9820374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fc8201af82d97ff62a075286db35a7c73cf0374f90d420efcba09f4c65e83c. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:01:15Z), 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/GBSMU9820466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e9fac4488ea624c2c7154e39461c1580ea8ff3cb048ff70cd3edb39b5a6a07. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:55:21Z), 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/GBSMU9820469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee7299c592d293ce9e1dfbd0dece9db80150b396cac7df67c1b3777ddc66a94. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:22:12Z), 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/GX4R52172981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a88baf7072a3cec4a307b808784ef6d6474e3f88bc283dc04879f304533e74. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:07:56Z), 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/GX4R52172982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314881e658a91e92d61f9816a45b6521642a9dc6d171af409284fbb70c083bf9. 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/GX4R52172984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4980afce528253e0b8b17eef9f9fa94207749038dc7bb99825b2376241a1d2d3. 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/GX4R52173010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a452bb71ee33bbde0c0741416c6f09ab5c863b02672e88a9ff5518d8a2fdcb. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:38:26Z), 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/GX5MY2129304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9969e1d27d71c4d3effeb2b31b72bf60224bf597c54f9f553cc69193e5a0af38. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:00:04Z), 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/GX5MY2129332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148c9fd13fa051afda342a88277c7fbaa9ef09116503075d9331687715348b81. 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/GX3HH2273469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cabcb1b22a357bc59c8551dd8cc23002dc5de8091c36f8af79a3303e0fac709. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/GX5MY2216571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6eeb19d748ee6d0380e405f19f173702a2edb500c40d3aae074373acf7f08cc. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:59:36Z), 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/GX8LE2283260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4042a4c31753f1fc8991ebf5687e23f40dd33db17b6396fede54ce8111c71260. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/GX8KD2390778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695ef314cf2f594839ec879ebb7011227a53ba97ef6d88be22e38eaf6ec56c36. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/GX8LE2396339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2666793af27f1f19114f5afe314e3861337e65b11fc4fe16879b0b933f9d306a. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GX8LE2350530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cdd253524a67d7fda7cb06544ec6ed51cc9f708ba0139c1faf1bd8de6143f15. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/GX8LE2384505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84e5ebb713462acddd67bbc44fedbfb3c3887e8c90fb6c13ce21d27c709b23a. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/GX8LE2322204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee2f7e60a986eb6494786cd2c7f2272f46ded293c2f2dd3bf6a3192ebc973f9. 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/GX8LE2317684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47fd6dd9c9e7b364e349702c2fcdc8cbf00901dfb7770b1da2de3de883644a33. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/GX8LE2370466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654a1ce7ec4c73bad04149f9c429d0e50043751363aba66976e3e96e547c0101. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:10:37Z), 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/GX8LD2511926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3baad687e30ec1daae708b264a031328993532e2e198192ca28d40b53844ae8c. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:31:07Z), 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/GX8LD2549182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd046e3d126a7b595ade57345e6e7dbbd73a629f91ef4a26a6f7c562d379321bc. 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/GX38U2594121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60022346e8b6bed9336324fefbff3fe00026bc5d7226e1db85d76ca8e87db09. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GX38U2516885.
Medley (Your Idol, Golden, How It's Done, Soda Pop, Free, Takedown, What It Sounds Like)
Medley: The A Team / Photograph / Thinking Out Loud / Castle On The Hill / Perfect / Bad Habits / Sapphire / A Little More