REDIRECT Substitute character#Other uses
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16314abc6fa3d32984ea9debb2cacb2aeb4c21b730a57cdb5079b15847981c28. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/537a95ce-96e7-4532-84e5-c70bdbdbf731.json and https://artists.proofprofile.net/proofs/artist/537a95ce-96e7-4532-84e5-c70bdbdbf731.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4abe2995757cc6920f806ca07a5db3d2588af304dfc798bd32f605876c0973d. 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/USA2P0603676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf891b2712cd13bc15a4518ee2acf20a893ccfa00549e0c4feb43816567c9fa9f. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USA2P0603678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051c67179b1ae6d51e3113fd0f42bac364215cde6beaea39d5f59f9278fffbbf. 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/USA2P0603679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a58db2e8ca0d8e22cd1897eadb4e916544e0acc57d45b716ffee2637b84db5. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USA2P0603682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8cc61488f8cc4d2f32aa581c45fbb57423bbd2c0b6a67f17fef84b90c51a46. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USA2P0603683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a4691e421e7f3f0d5b792950c93b1c483fbbfe3c0a9f89612e1d43df688bcc. 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/GBMKA0600032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9044db0d63c962d3ace119caab8d841272b760f8d4fee06bb5756f4a9b913b50. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/GBMKA0600033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce400e3116e9d5608d0546be5454c4d2ea057314d3f3f86a02c4fb73478f6db. 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/GB8KE2501950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04613fc7da5df11eafce44093846125b575bdf94b9f220d61c8d6dba0f62092f. 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/GB8KE2419875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b03c35b00c17d965b38323b9a5067e9fe694ac2603be69afe1ad52f6e13084c. 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/USTCZ0959034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999a08ca602be69dd88dfcecc6a8243acf3c9c0ed50de83ff452162638c3e522. 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/USTCZ0959039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b43ce4d62aa2f471422144ebc477e44863333eb42c33a73f9acab32fa47b84. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/GBMKA0600045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef32ed5197c7fee96b674d23b0decc8c5b23fba83b40e2e9f02eef984a20310. 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/GBMKA0600038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb31e04bff36d2dee8b7c97f73a1a20f2bf89c1066997cfdd4b40aa943981a1. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBMKA0600039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7af440207de588afa490d00a820fb7506ccfe698e919f0ceafa759cd91f46e9. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GBMKA0600022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c1c173fd530cd998198cd7fa6b902299abbbec6a0751c47db0684283ec423d. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBMKA0600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82e3ee70e30500922c27f5328a032ded34c236f93a4b127433de819e4174ab9. 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/GB7YL1000501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9afdfdb996de4ca0b6e11bd22d9a7e66db468b83a5330f8a786cfaf43438839. 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/GB7YL1000502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa38bd1b910e522f209f9a027ee459931207e338d8b50cec7538ea83b5d541c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GB7YL1000503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6a72f36c92cdfc35038d53f980d13da1e676332ec28e0332e8ed1ecbb333ef. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/GB7YL1000504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f2d08e486045a09e321df7e1cab10565761285822287e570de3409b20393b7. 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/GB7YL1000505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64d7f5028e453063e6d826b0cb3edc1f7a74cf5e8f218008cbc5dbc5fce0e78. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/GB7YL1000506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec982ae588b85492fab3101416a8ffed9677e60ba0bbce1c52b1df83a9de015a. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/GBYCY0900895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7baab42e1cb0f6b758286f07b4ab0be8a57b7b3aa1634bb394ba3801ab9a0e1. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/GBYCY0900885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19044775c456b3f0c1b696ad0324a9cbe6e90741e2f97a6bbdbf10d2b56ef905. 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/GBYCY0900661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf4c5ea656cd447832f53e03fd3b26b3af4a76c7b5e7e1ff6a1a6658f1342b8. 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/GBYCY0900909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7c672cb174fe84153d6bd3f748da1fbbef8444aa7e6a6388cfc52e134fae5c. 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/GBYCY0900105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbe59240cfd4fda07bca20f51cf3ba2affcfe4c9ea5724263b5d863f719e63a. 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/GBMKA0600034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754da40435c188a24b57b1ae090f2f49971ba13f78131f9f8ab67075d06d2674. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/GBMKA0600035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200b8e3c1da35f30336fea75129066805b660d6f7827a8c6f4a006e9689e8105. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBMKA0600029.