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 0x3bbbb62ce31d422b916400bd602a35c7347cdc127f8bca706621a9dbe875c8ae. 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/b00b1bcb-6c31-46d6-be92-d4cdcc359977.json and https://artists.proofprofile.net/proofs/artist/b00b1bcb-6c31-46d6-be92-d4cdcc359977.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 0xde70325f2e2ae57625ed1e4ecfe7b9e62a1cb932adfaa0f9c9b17537c82ec9a5. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/USUYG1263646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb326fd45da607099a2a9ada5d13d5b595f7d9e6eb538ebd8f21c13336c317599. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-19T23:39:23Z), 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/USUYG1299581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9bc5695d7eb1ee2824cf274c0bbf1e6aeb6d201a3644da19104d49465f05b91. 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/USUYG1299586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c42460d1fac4ebc69c5558c5e8b626d1f8103c09e3176e20d33fdfccef48e0. 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/USUYG1330919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc82441f07c53abcbb350c79510787c8b2d2a410047ce0e6f6b8bb6da0c04a85. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USUYG1345364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adc9cf37385326906e112915eafa647d5a5924425a4951d54d164c800514c91. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USUYG1373712.
I'm Out (Super Mix) [feat. Lil B The Based God]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74618701529c0cffad84454bebee215910f4d397bce2002ef4e2a58fd99eca19. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USUYG1387689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448ff49a8d327ee9e10aa1ce717ccf678e79e4e8c8e2e15c478be9c3de73dab7. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/USUYG1387691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b7c656453921666961d3feba0e2719877a74fb3aa20e16e5b06815047de74a. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/USUYG1387696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e03dc8040b08e1fc8d90227faa128a852bc9182f8d2606cb5834bd4ce804eb. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USUYG1402267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b8da4e1e25481c1f17a94ccfec971e8ae77678edbf42d5cd5f01a4173898a7. 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/QZAKB2346108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0eff754115cc6c3ec2ae33321b402006dc02a84dcc750b62f87a3214c2678f. 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/USUYG1569494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cbad7531c681d7376e9d03a4511f11e34ba89fc704400e279bf86362f2e0ca. 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/QT2LD2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0145d6dae912e5a3d4863dcf8fb9c9c07da82c7e8f0f5a0e4388a3735cf4e6bf. 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/QT2LD2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef7c7b21e6e8d2d3f24eeb93da670b4881f6b6ff64d4366a915f7a70a91397a. 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/QT2LD2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2007c36e870d3f8bd079b427aad382719c674d25d5752d22fa2653639138fe4f. 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/QT2LD2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825c1242e12b1c67e117ec234c24041dc0ad3642157f0ae398028000e40da290. 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/QT2LD2400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b757d17997d54ce18f4793fb6e30388647fce12669038b3b6ede072c886e9ba. 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/QT2LD2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40503ba5964c610189e8c21afab2d941ae689374f8806fce4786c64846e4e092. 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/QT2LD2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c39112036c9447ad4e64181b7a45009f4e340afa5fc8fd6b382ab5a5447047. 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/QT2LD2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ed48310baa63d148dde567e70c7536765a44e74ec1418220130e58073f646f. 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/QT2LD2400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f15298f1af9a6aa8174b170ae1a8410c44f8f9fdab02f4750e4dafd6fd28d15. 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/QT2LD2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e8019d7eea7e09dbcf209efd514a0cfe9cac9162547e21ff72751ddce6b220. 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/QT2LD2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81652e862edfaea959c17e3071ffa24c6365afb00a2c13ca31c6a93efdc7c953. 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/QZAKB2346161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa54de125825039b2e601cd1dab41ef7537bdfb463e51a86195ced352346690. 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/QZAKB2346160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8fea8c5ccbefcefa72afc5d2b8fb63a812305e3a3e5f7433384eb14b4c86335. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QT2LD2400015.
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 0xc77d461684d724256c225bc0a9dce8243226547eec2624358f88b6144e5c788e. 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/QT2LD2400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5faaa54af6c190dd45eda5ad7a966624bbd9b5595d80a10cfffd1270b4058740. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/QT2LD2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f3b1f92407a5bf5d4404c16a55d3b4060cd3b5c63f4498d1e1e24c5c70c28c. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T18:20:28Z), 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/QT2LD2500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df52fd085419a6b99fd13aac6182ce4ca5ef22b9e98f333286852c87780db22. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QT2LD2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11704c55ee8a2ece5d11d0a8d05897401a1d2f3a4bd2ea29f1eb2fe55f4e139. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QT2LD2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e5593134f6f35c01da32af9c56e5968d8b4129e4ca78a5270c7732e4437c4b. 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/QT2LD2500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1daa47e54f9b7aa63555bc60062064eb6689693cdf443184b948c474c2fc1b. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QT2LD2500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73627033376657e0abdfac346b8de85e4f178879f9ab7407691d1c8336ad8d3e. 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/USUYG1373719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee683eef232a5137248ed6b9a6eef934efb7e54e1e9163d36ced9a18fcf27041. 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/USUYG1433040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56339c5666ac09475be1085a678b966b4365577163763c68a3ca61a6d175df3. 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/USBAE2201439.
Say Less (feat. J-Diggs, Hitta Slim & Stunnaman02)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3239a354f9327a30fd64041feeadf152eaca199b882eefe04a5a20b18a8119. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/USLD91733590.