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 0x97c0b0587b1a1be39abfb44720a74d28f0842ec41724d339faeb890baa8f5b7c. 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/1652ec7c-b243-447b-80fc-74be122901f8.json and https://artists.proofprofile.net/proofs/artist/1652ec7c-b243-447b-80fc-74be122901f8.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 0xcf3ec2b72666e62a559fe031ba8d43d588d9bdb3743cfaca7d465a850e97eae8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZFYW1980640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2626ca45931dffcc4b935e8693553c49044b1d522ea1321b682cf83b1f5d9b. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZK6P1942524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582a2cfce64607651a64263bf82fb99ae213cea06cfddda453a34f4327dda084. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/QZFZ52029215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90076f1b68c0ce2513e8f3229b2c85dcf921a477ab239025eb3d383a7e38a397. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/QZFZ52029219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7efaece1b43e4e6ba8aae65f2a1fe8ed70a6ae04730dddccec042d140da72b7. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZFYW2175967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107a089a1c038353440722e70ebcc2d25f60655eecaa2310c151e75f886c9828. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZNWY2063350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfd168542fb5714f89e93fce5ca74546628bcd1bd58168fea683404871c14de. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T08:00:24Z), 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/QZMEQ2119829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a10f4a91ec07b14754515c0b00ba0e496cf41a2f4edba0303d3823d025bfd90. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZMEQ2119835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb004bb4847cae1a0cdec89387104e1f37502d362bd65914e1ff970d21e727fa. 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/USUYG1455482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837ebf2412d66fdbbeb76148b7257f2f3e430b5ec0dba1dc5d8278fa8f63c0cd. 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/USUYG1458433.
Not A Love Song (feat. StanWill & Trdee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5f7ecf9286b76e4224918357d304b38a853d0eb468bb1d78b18553a5cd1a80. 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/USUYG1458435.
Time Machine (feat. StanWill & BabyTron)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ed82fe39fdbc6f9debd3d289ae5129cf68da6069e4160e1bbc1b4cf50b9f7f. 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/USUYG1458632.
Broke & Woke (feat. BabyTron & J1Hunnit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce055ebcfed90f52b17e500591c127f4dd67f8c2f8ec8d40b8963e3dbb0d4580. 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/USUYG1458639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a486211d375ead275575dd746e68e864f3e7876c9941828990b305511248b72. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USUYG1458640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2954e63efb808af8db502292dc1ed959e253fe35fdd6ca9d3deff14d5b0d7643. 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/USUYG1458642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20764c21dec3f104109e0afcf2caa1c1c0fd7306800cde8f5510c826e8626a04. 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/USUYG1458643.
The Coney (feat. $weet-T, Prince Jefe & J1Hunnit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20102eb36300918ca6d795d2bd6a74d1ab533ec0c1167590fca2e8849499d06f. 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/USUYG1458768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf703a0dee50e32be388cb8226daea53025464a841d3f40f8b9eb4cd44fb7def9. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USUYG1458434.
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 0x21f3ae32b040257847a8d2be60f80072a1c7f6457e2d87c67172d475597627b3. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USUYG1458641.
Hip Hop Lab Cypher (feat. BabyTron, Peeko, J1Hunnit, Prince Jefe, $weet-T & StanWill)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd7f4d74a8ca9cc08b536da02fb2bdc017d30a9d7de4add6b9957f4fa8d9506. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/USUYG1490752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1eb58a150a019524d02692dff9d059d6204de5236842c52292847af8a00cd9. 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/USUYG1500876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca23b208cbe90f491d1450792656504016e530a86d8ad8e91be88387971657b9. 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/USUYG1515835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac456cc8fea55d7ceb3806c8e6f0c263622ba920f4d2034e419f56f6f2cb56c. 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/USUYG1515834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9d9e434d54480cdcdaebc74136f701395fffcf44e85cfc6a616f02736f5e66. 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/USUYG1522668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b76d324d474079221c3e3ac972de9f818f72df1827331b0079ad1a9883f9439. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/USUYG1717586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8623fd93fda187f6b9fea5a80eb3c3bee0bc38331148395381bbcd225be47f. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/USUYG1720003.
Rent On It (feat. MJPAID, Beannskii & Fordioo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42b222aa5a00ddc3417e183a4d759f04a76c97f6f1a059ec58894da2279a0b4. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/USUYG1720007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ea4e09bc83fd969d7dd9c013fbe63624b107f219502a811f880fda1bdb86b2. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/USUYG1724628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc9f48b8dfea9c9a6b743fe51f7e94a110e3b0c7108de9d4973e8bfdf0b9e33. 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/USUYG1415917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169c96d0a26eedffe4b94a50bcc842060cec29f69e0372db1cde00bd050017e0. 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/USUYG1415918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536a4882cca4a26bcc7b603a4408f1c24cdb6c4b9ebfc7efb6583702859c0fa4. 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/USUYG1415919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30abadacfc1a5bd1bc43b5b0a9584ae405eae11a02b91843c57f515e8c68b0c1. 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/USUYG1415920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38120fc100ae1c6b01bdb8d991c2d99d1557f586ef28cc5ca1749405b4de8a1b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USUYG1415921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75aaa13dd79044b07222196aab48845d4c35d54f8c21fe47789ddd190a84478. 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/USUYG1415922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63d3ee1c441393d14b74b12b3ed3aa0c1e22cc03c687fa15ee2f4d9a459114b. 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/USUYG1415923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3b408287a3e4d9cca94a4b38ef0f98d457c712d66e6ef03bc6c4a15ed77598. 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/USUYG1415924.