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 0x6b4ccdeb25ade9966765427cc21126096cfe63df3d1b59aea18d60c7c3f31c42. Chain 2 (Bitcoin): anchored in block 953721 (2026-06-15T01:12:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8b2d0175-bfe5-4c8d-9946-e30227fba317.json and https://artists.proofprofile.net/proofs/artist/8b2d0175-bfe5-4c8d-9946-e30227fba317.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 0xb20adc659cb299dd9de230870fd8c89d0db9be85050cab0405d84d561db98945. 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/GBKQU2266176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ccf34d679fa747499751a83cd12863ffeafdf3c734cad1245420809524a9ec. 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/GBKQU2266177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ec056e38cedb44cde67052e8fc039a306b6c6e97b66ce087e0c7682f4c36b3. 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/GBKQU2266178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3b6629ff24c8c51b7eadb6bb502c4ed9dd9a96af18d03bf7fdf8813850f7a6. 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/GXBNP2424237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb07a1a44e9fc2fe84dd1c6d289289f426fd3232f81d0838041d7532acfe986. 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/GXBNP2424238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5031f786bfe6549aaf9876724d644bd780ccd6532adb0a2761bc14acfdf3c79. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GBKQU2406744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8273b44c8d970a75994e5c78472b3845316ffb768d9bcf83a707af9e6183d9. 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/GBKQU2406745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c9067219de8d6040af72710dd2d93613d7f2c38ac712c5fca52ca5b29cf5a7. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/GBKQU2406746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4e072a7e4a91e6221b4d7561b491d2c13e7215a538f26d1eba4f7238eb24c8. 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/GBWUL2385901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af1d49207fbd2dce8272d8994017d6ecce7813697f91f375e08d9a3c4c76cfb. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/CA5KR2336899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6d5fb94f75de765a038f93efa6cdd1698b9aed9c15ccf5ef5c08131fa2e385. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/CA5KR2336900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e60a887f0df9c2acd757fd633f563201b7e4086d833c12b900e8db12d2d3b4. 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/GBLV62204242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce71ffc6d26400cb0c38cbfb23f45a75d278b06dda8c9b6514de1444e712df5. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/GBKQU2110360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0d091babd9b726b766e4d11de25cb0b1270ab71bdbca287ef2752045dd5b67. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/US83Z2104991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e00a6f210cb03c65afe0b22103f84a1c49605628bce25e84cda966b4954591. 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/GBLV62039511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f084cc389ca9115130924cdf8fc91af116c1e2b3f45f1b28cf48e2e6577ac3. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBLV62039512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5634f4fb0221c78e0034f1f77f3b8cbcf209695e1a968658795d68ec4b04fd2. 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/NLCK42500353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfb80e1ca79faaae61f5a554f4f9f882032d2563dfc7794338d9488e3e7fd82. 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/NLCK42500354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a96df511ef044c4c62d550cacd19f8e7b7f9cbcd9c27aa5bde72d94141b5e5c. 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/NLCK42500355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a503638560337e7ca03aab42ae0fdb12b69f148954fc98f99350626ce953f6. 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/NLCK42500356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221e37301171c0c7ec734416140c8ef3b2711c811a4298279f1468840ded9dbc. 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/GBKQU2509248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614da60c2938359de9b4162d55f96404dd129614681bc3d00859e5a06cfe686a. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/CA5KR0037177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a128a5740fbd4dafb1e33fde6ed1d120b9a47ba0509773cb29a45a20912626a. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/CA5KR0037178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9199ef8f18e7849966975a2cad44088c07c9a820a5e64038ffe45c5cf24aa5e0. 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/CA5KR0037182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d5df14d858ad9c9f73a69abe5a1137a6663ef3f7c29320d4467e1c5ffef8c2. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/CA5KR2500335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94373fa1634b214509a3e9dfbe73530f6ae314576dc1b5d29f3d7cd2402c69f4. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBKQU2470002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b80276ab52e66f31e9d5ae1687ed7fa6076f05401c05c6309b90b6b575c4fb. 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/QMPVD1500597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe231ff4477fcf722e0fc816a198a8c5d2e6336d5076e340881e9e238d1d7ec3c. 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/GBKQU2132220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8378a71ad244a990ede05fa0894a979b8bbe31572f05622946c4c83c584145. 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/GBKQU2458299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80382189044fb119ba65441d1f03982e7be7ae43a166f5f9ac2067770e05dfa3. 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/GBKQU2458302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c04e736551bef0f67afea9352717ed1d19941fff8526cfbd302187a670261b. 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/DECY52100665.
Current Mood (feat. Cat Lewis) [Remixes]