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 0x8fdc70d9693938a7ecc69ed9d7ad12d4649927b1726b599b36c958fc5f7d4372. 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/dd357b96-7f99-43dd-be1b-dd64d90e7418.json and https://artists.proofprofile.net/proofs/artist/dd357b96-7f99-43dd-be1b-dd64d90e7418.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 0x10aad5a36e54614ead2bc636f9ce20a36534c93cff4c07124fad0671a3b3d028. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US3DF2140623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288eec84eda221896fe05242efe91adcb75caf88cca78bbdf445196fec6d5a84. 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/US3DF2140629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0743e2b8fbcaeced533a370c187b608ca76a30256a7bc8b681de492ee612db0. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/US3DF2176088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243784ed2947146f39267135e3c9eb50e0801094cad54a9f35d7d7d050b624eb. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/US3DF2176089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a9ab31e82dde92c405deec07afe2d9575017e23f92508770bcfd4232ecbe15. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/US3DF2176090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfab0566ef07b9156dd230eb3dc25cd874300d8e51ff600a59e4c28e19095542. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/USANG2212661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67da399806b8f5500450f13e692024fd965cb9008f6f6fd30e1a159c142fd912. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/USANG2253094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3134a089ab95115a4243cd819839b153cb1c815da2ccaf71b88db1593f32913b. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:35:24Z), 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/USANG2267779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0270d508ef18375ba40c786edd555df75be47809604b6789e30df8b9722073ad. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USANG2260246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2291fc4a71961776cbf1b75d000e4e2a4c9ff22fb2e28fac84c760d5303273f8. 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/USANG2292929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ce60cdb183fc0e529804bccf51070917396d91d4a9b295af5bd32caa22a25d. 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/QMANG2201923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bb4822bbf057eb69852f8c331046473e874b355d4e5cbdda5a91cec73fe398. 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/QMANG2201925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc850a0a0d8340531da411b950dfb7a13b685f1dc9b86ae2dadf7f7a26efc34e3. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QMANG2238779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0249a8496a74291b3cb654b16542da83a5186207a1adc69662a317369af21ef0. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/US3DF2402378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7636cb54109834b00909abf73f8b8b2f46661378482497fccccbd4b7fe0aa3. 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/US3DF2423764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd615dc8879f6c2ff2f37e724fe5ba4aa1ecc6164a0dbc53b942269584811fb. 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/US3DF2469581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d058207509a50c8ab31a56778d9a7f7e452bd94bcb79287648e8c043e5923cd. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/FR9Z62400730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76142c84dfe52884b5af6a4966302fc33011cd9cba34a7d337028bed003b8b3e. 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/USANG2469094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x722dc1c58018771d8fa614addfa13a8854f77c16b4e3938044ce0ee699d6a525. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:08:05Z), 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/FR9Z62401003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48e85fba2de12131d100b358251652e8468379afe6558cffd1fe1119acc24a8. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CH7812528455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c6fb00b0b9f8bbb4078404df1eb711654f8b95d5b06aa2829ee8bd7a749b8f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/FR9Z62401059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f53b7e724b18576bceb6b76e5ac4969adddec325ac7801cef328bc5c04b3811. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/US3DF2532289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd53c7a9a973df0b83defacdd80be73bcb7853e60371111aa6c5995a3ff4b1bf. 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/FR9Z62500356.
Mellow Dreams 4 - Chill Beats Compilation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1ff82b1dad8cebde449576b8c93fc8f4bd1127c50d9fa27d9ae3a1c2801b5b. 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/NL4YD2200093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3d4d70f061cdb57bce7e237c40f704c9a47287385ac673699cd633d9c16534. 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/FXQ892200401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54808f57b1f80298cbe14a7d782e9deb9cf0522976cd969f171c9f0e690f5692. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US3DF2455817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284802c94400c9f3c0c33de5f633011d876c15e8782f7402182141bd0e1ffc93. 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/BCD4N2500041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d784914b74a7692c7795008fab05f1f1e9a2067a5a94fccee9227903e475d4. 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/USANG2403700.
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 0x3ea71dcea4f270ed47441628b66c7ccf92e14e0436851b05271c237ad68fa683. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QM42K1710343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff802a01609949850ac1c5581e01c40ddb66fe2eee489f7ea0fa69abebfdab5. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/US3DF2495226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b903e29404e7fbc0b683ef7300e72a0492e12198a85f0415af825ef4ce78266. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/US3DF2279246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac4447839468911c490222f5cf02512eb5af0c2168c2957cc75810d876fb361. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/UKZGC2408617.