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 0xb2dac3b6afb2cbe5d64fdb8ee81fe0a470bf070559fd06f590c71fb196f8e270. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a6383724-2c56-498c-b752-9a7185b04545.json and https://artists.proofprofile.net/proofs/artist/a6383724-2c56-498c-b752-9a7185b04545.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 0xf885285c4826f9ffa53d20cf1f1ec061c890265c913659948e837e5eb5d81566. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZTB22358493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7c5592440936beb6b81582d907dace821d0c9211fc463ff6204274c4c34c00. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:50:37Z), 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/QZTB22358494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d54122073bf3f4331652ada38d4bd5b8e32f57c475d9c9d26d530de773cb6a. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZTB82451684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2892cd075c06d8db34e85b14798f528f0a5c6d9bdc283abd65876a762bfdc5b. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:11:16Z), 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/QZTB82451685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1851381912154d48bd7eae222475baee7d1a132b85425ce407c281b0c641f275. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZTB82451686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1bdfa9cc6ab3240c0a6819e3474bfc8e9cb0f950a3d54d5da334184aa45008. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:53:35Z), 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/QZWFQ2432446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf226b27d3fde0db7146bd88ab43e57d58f9c8b89e48dc17560aa110e06f879f2. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZWFQ2432447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113f1b77fa6d666db61b561e79b85d8f81bd7d3ebe473ead4afff317be34656e. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZWFQ2432448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7285d727454b87a2b7a1839e557d65f591bf4b87a01b8352d2fe9e4158baa3a3. 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/QZWFQ2432449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab56e755fa62d4ad91bdfe2f90ce9ad7ec24a76fb3a7f611b9a3d193df2b41d3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZWFQ2432450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe417dadd5e1cea4f28c64f2d41d3217a4070c10b8f3c8f929fe10ad1d3062b42. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/QZWFQ2432451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb976dc46ad64d1e69e55b3debacbdfb41642c93e9ee8ccec257e1d36a3d1735b. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:00:55Z), 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/QZWFQ2432452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72993b524e18cd4b410a9b1240190a1b73a56e522c95ef605be1ff77430f83d9. 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/QZWFQ2432453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e11479ab298a8c3519a9849b8b545991e41c1c79c3fea82ecef064ae26a20d0. 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/QZHN62527853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3843c74bf7ce1b2730564adf30831f9c14098ff34f42afccae22e9c9c44211. 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/QZHN62527854.
Come To The Nawf (Jump Out) [Official Audio]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83acaf1018b60ac88cf611e4bbac55b256ff72282ae3d7e3273db1f525ff5896. 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/QZHN62532753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa296dc987cc314e012c12e638b54d9d140f6f163d22eb1c9c1c86bd99521677d. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:31:48Z), 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/QZHN62546048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1851381912154d48bd7eae222475baee7d1a132b85425ce407c281b0c641f275. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:10:47Z), 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/QZTB82451686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d54122073bf3f4331652ada38d4bd5b8e32f57c475d9c9d26d530de773cb6a. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/QZTB82451684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2892cd075c06d8db34e85b14798f528f0a5c6d9bdc283abd65876a762bfdc5b. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZTB82451685.