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 0x1d42c17204945bd9c5ae6e566461da2eec84958181af4287c16b125fe720d032. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/72d66df4-000e-4f89-8ad6-545047ea62d5.json and https://artists.proofprofile.net/proofs/artist/72d66df4-000e-4f89-8ad6-545047ea62d5.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 0xe01ef0a7c2cf343e1ec36822415b079ebc8ca4ad6581d6959f7fc89609b06261. 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/QZHN52378659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9353c9f4c3748945d3c5efde9fa07f90d85af0d4cf059c34be349b66157e0f. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZNWW2109232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e29bd0180cb5085f90ab1b612dac24242ee504551c1a0a22912f700f5918f2a. 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/QZES82150102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76d0b0b71b23e4cf0eacae8aaa9461ce68d6d4650eddec45de7e29a002973b1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZFZ22280499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2640f578b7b67909af16e5023488ac8d91cabcd123bd1fb09fb0d252fc36421. 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/QZFYY2262288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b48e756a1f3514f9212b46cac0bad2cb98c097f561f9098c9392a9fc72748c3. 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/QZFZ22280500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba466175ce8ffb28a71945d01ca3ebe0ced641a4140662d56aec2f79345307e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZFZ22280501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5c77043e2384f75a84c6a6026060b1d26af6fb4b56954efda9aa4e965b7612. 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/QZTAS2135433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd07ca3e31073fd4089037b479681babe28b071032e149395c3d06272d0e41df. 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/QZFZ22280503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21281e3942ad6723dd83a36e92c5631e5fd0737ea07834894e7a90fe0966649. 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/QZFZ22280504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dea404e694ff2166a2e661f9c40c2862e7b48c1352e2ad88918e078a70691e1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZNWX2150079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe351d2d4b904bc09c5b13607009f6b516f13542f93c4f77f84ce6c9452cf969c. 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/QZFZ22280505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60034ee5bb1ecbfef3dae8b21b8a8532e535348dd463ec8cb3840a34038a85f. 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/QZFZ22280506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d8235de70a362d735fba4b5fec47827d61617b2f0b22d06db3fc35c6c2dc81. 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/QZFZ22280507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26fd9d2880a5b1296e234e299c156e70dafa2b96823980566e8bc25a8715b9f4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZFZ22280508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40116d1112c64b37cc2ac3ac4b924ba68e77a1a03a57e0abc07dd276a945ae65. 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/USUYG1546821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1a8f77776f23dfefca0e229de93a247bf0fa40b305c510a061c7577c891f93. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUYG1546822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540bdfa793572a73b74745786d441c52c6ce5b055ae9948374a77b0202ec2251. 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/USUYG1536159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a748df90514a79cdf3840e8b73b35c66162c474c0a52c33cdb9195ba6f02514. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USUYG1546824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5960a3a56d44ed0a24d09458c652c83abf6f6182556f0258302a904e0994b0. 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/USUYG1546825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232fb1ab851858bf674b11b30394110367f1b1bfdf7e26ceebb7cdba529510d6. 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/USUYG1546826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366bca461633ea3157391e742d69e1ea6ddfa033d2a752e474e07df64ddd818e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USUYG1546827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c636519c816169913bc44936ccf43891efe6c12a236be7d1f681f622e90326. 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/USUYG1546828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10e4e94dc3e83c0e5d640787cc513d89e5b42f8f4120b65e0c0752f3f529885. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USUYG1546829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1104428b04543fe40701349b76b4abc720ffa412385fba32f4872a801d3be7c4. 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/USUYG1546830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774b52faf8fff183befee321be4266b1fb28cb01ef9e2f2484eb8ff84446ed6e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USUYG1546831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46a9495eda32f03012b89fe75da7acd08ffe9f74d580b61f8cd4d07899b4404. 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/USUYG1546832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ba4c591468d264f38d0203b99cf2196d7a3004431eec5865cc7083380526be. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USUYG1546833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8ad8149a1917e60f4285f564f047360347a494cf2520014743717bc3b6d200. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUYG1546834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe3108e71374bcaf7086cc525c2a661498fefd2c18ca80de6ea5a7f1f190cc8. 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/USUYG1522119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b80668e1db290e388acd42776e5ccf4e4dec57426e5502253352d2ac7340e21. 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/USUYG1546837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082d1f46e8b6a4ec570dcefd33ceb49d65f7e2bb573a59493256293caeb72ec2. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/USUYG1546838.
Underrated (feat. Moneysign Suede) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f914d3b6c3bbc14229dfd109896302ec5655c0059e49b9bed5fec70527853c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUYG1503821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2640f578b7b67909af16e5023488ac8d91cabcd123bd1fb09fb0d252fc36421. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZFYY2262288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab215a92a94010f56af34a51b0e9a9bcbcf7e7464199452e8c8f92e7bdf89a5. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZHN82147704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64230081db09d340963193100471162a30e0f06adf2226673d88cab29c27b918. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZHN82147705.
All Nighter (feat. Sleep3rd & Inky slim)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec261e92f435999fc0c9808e4744624fb146aa8e9ada05a68321844fe3d45cf9. 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/QZHN82147706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21819097b556f2db4cda4f5d8c562e7ff0598c83c9a437c4ecd79670a0b9ec86. 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/QZHN82147708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94267e0ec3532c329bd3f10881308195dd85d82567d9f1eae6d936e3c18b3be2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZDA82189459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec90448d08d587e389b929b0450f20a3fbf1d4fc14181c47b40139b09a03ca8. 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/QZK6J2161983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5c77043e2384f75a84c6a6026060b1d26af6fb4b56954efda9aa4e965b7612. 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/QZTAS2135433.