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 0xa8fab71c0fa256c7dc83472f9eb551f2f0a9437548644c442b5d79973776e8f8. 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/4e90e336-2c08-4d84-bca8-1176784026e2.json and https://artists.proofprofile.net/proofs/artist/4e90e336-2c08-4d84-bca8-1176784026e2.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 0x1daec80ce9f0014a9b9130d9d8146417b1c33be357bb8860afb8aa7ca3c33003. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZWFP2300752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5cc6f733296c465512499e8ee7388eeccdf025b998bf529662e2cc0ce3fe23. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZFZ32427816.
Stand Up And Show Them Why You Are Better
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc5e5021e4a435144f08c43a27b214bfb10cf04ce20e6a22cfe8167465297ed. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/QZHN32455618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7255ef73200b066cc32968e0cad71894c4d8c55efebcb9b16b3e469c9eab615. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QZHN52421464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40761707149c2e914e7115afc3725902594d87c1986e0ec5a024fab02f3b02e8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHN72424831.
Forefathers, One And All... Bear Witness
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523a3a8d326b387857de2aac9ac4d2898a04acdb020c12eb6d578ee6e0f61ef5. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/QZK6J2473273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c3d3a2f5c9e2b2db543ee770f8dbe8128835c914e617b610c5e099cd6ce81c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZMEP2485228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfffa4d3e52e5fca887e116a597a134e80116997f6d817cca6974e4d77dce9e. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZNWS2416928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435028e75ead5d5e9202d1109562e0a5a86f451acb39e58c37f3662d36b914a9. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QZNWU2434822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d68be077dca51a911f530f0a3823b5a87353226f31d0e500f1b9e01df0424b1. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZNWW2435017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33628425162bfc7a68b71a0ba83989ae797ac67f374a8126b7f6a50ad8591b7d. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZTB32408238.
A Moment Of Pain Is Worth A Lifetime Of Glory
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e231ab7909fc4f172ddde23459f8df4490376f24d6eef11311ed7e53f4fa87c. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZTBD2404818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58160bcd37b2016849973a774bd1522bb02a5d31075b176e1c802e7fdc4fd3de. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/QZTBF2424809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8abc974d7b5e629c5f21b2d2feb1b9556f4987d0430bf2cd899d6cb2fc6b55fe. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZWFG2430480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb08afb58187d63c49b331bd44d42a70afced9f534b79bdddd0df1ba3f1006d. 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/QZWFJ2427427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b7df0add3268051b16169dc2e7dabbdd9d9883613fec9915104375c9bd3af5. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZWFU2413426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830982c7d05f64f300d6538b21ec18cce54f0420048b82e1c8c4c6bcc36c7830. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZZ792498182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa06f69dc34f5c4040c77833d916fabe0bb73b5175adb24661108e8500818c9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZZ7L2494639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80134687d636b6573ad2feed67491eac9cde6c8d52ff104e1830a9284987f1d. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/QZZ7S2446234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a88caad6354933e0b8aafccb9e7f01fc607afade223293f4730383814f1ebde. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QT3EY2418755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e8cebb7994be1de13a9076eb8e8a31bc1f19daf3333968b92f2e274ed030ca. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QT3F42449238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4ab0a7f4fac1d4b3f5b61b208b387adc9a4ceee6d1d88b936da23251a8e9cb. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZFYZ2571533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11bb026adbb32e56389251ead762acf8a37cf9c90fb2e2279033929e6e4cbc8. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZDA42536825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e8918f1c70496f84d437d3986b4cda19ca98e4cfae7365dc01e91807e2f58f8. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/QZES82531835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84fa641c83ba392fd83fd9973a643ab77dfbbe49890ac284fc74a4c55ffd2e1d. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/QZHN62551472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5b8a7977b9273e7b4f1dd8c1d301fdd1b9065821f727a36d9a06d1927a38fd. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZHN92512861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3885420d1bc40df531b4474b6440f2a3de036294ba151d989c4afabc910576. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZHNB2586699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8044861e208fa0481297c57380f6f60b77631cc4e9b6454f27fd5a980ccf67d8. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZK6L2530260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c55306f03eaf6e4a74cc26cab9b5b86c268d784dca80283dcffbb72ba6dedb3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTB22593857.
To Go To The Gym Every Day And Destroy Yourself
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1658fa49324afbefc4f9e980613f2cea27bc3a79d093273e958f7862c11ff21c. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZZ7S2576695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8971b16591370f863ceaa9b95b18aae310c1e6d2a6b600c06f8d6479684661. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZZ7S2587055.
Not A Lot Of People Know What It Feels Like
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008274330c12995682e06adfc50f8f1f62cf4cdbadcb3408a313419c9de6259d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QT3EZ2550834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f9efb22cf40dd3b883daf7ac4100277392a355633ed666ea203b68d0f61674. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QT3F52501340.