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 0x6f902a2aeb00ae5901b219386f265067eb456e3eafbf387ed39cc4d7014cbabf. 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/ba3389bc-cdfb-4ba6-9b5c-ddec5da76683.json and https://artists.proofprofile.net/proofs/artist/ba3389bc-cdfb-4ba6-9b5c-ddec5da76683.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 0xfa145f1bdbd333d096f596f7542d791cdb9435beaa0b55fc828a89bb3486e08a. 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/QMZEN1800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2413054c73d967f468d9f116f3cbc41266df18d9a14fb7040ce06b54c518c54. 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/QMZEN1800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a855b7851f4dc520a83818494eff1f2b39b4908c655ed0e67b76c2b057e571. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/QMZEN1800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0183bd1fb4c64a3b99e0b13dfc0039f12fe99bd99600cae1bae66b253d232f5c. 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/QMZEN1800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96bb4896ce8f811789c42edac65eb51f9e7a7d2d74d591aa286164a2993a9a35. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/QMZEN1800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e3f6481a4ed61f7e26d7ce71a88c97c39825e177d10235499fb9378c18e9b2. 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/QMZEN1800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c6cca0b3642668ed72df213062bddc698fca0f1ee3a47ba46c6cd5a8d76cd0. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/QMZEN1800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd81bfe7c813fe1697b4904c7f9679ae10c35d03be066e6e0198c529f09019b2. 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/QMZEN1800021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26242c501fb5d1c5e51b8fab066039300cccfcf5177d5920c8aa22ca64470be3. 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/QMZEN1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b3b44610c7c1984bbe4a1ca345455b30a1121bab8e66205aeccb0f0d6d0368. 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/QMZEN1500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4459aed1ccb8b38b7274381e75ed7ef977f62c83cc5892819a76c5f7cce087d0. 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/QMZEN1500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf931d89df019cc148ac2c9bd94cea42a9f2f4e5cb75bd26a8773cde36ce2681. 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/QMZEN1500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6b968258e3a6c728c8a356d0c7bc2c03da61f6e6dfb2b6c63fa118d9ecc053. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QMZEN1500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0df9a52034a1a970cbb8a2c14770f27dbf736b2ded140e577ca0c3edb8cc6d. 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/QMZEN1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5cb47e8958f41b99181775ab378de7dce164265b1d0c88419833186a0ebdcfb. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QMZEN1500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd565250c503edd719daebc35b8d9b378f23abf8a24005d07b967796e3414611. 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/QMZEN1500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07de34f46194fc96ef4dcc1600caedc5e508d15a716b1f820c79eabf2c259368. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QMZEN1500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f2a79474f044245e3ab8a3e5728b0035c65f39bb73a23e1ce58a1cb2dd0c2e. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QMZEN1500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202c25827ed942a41ee6cef1fe0b1fbf70e65c5974ec03a28befefc558531877. 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/QMZEN1500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff483c723ddccc340072ea4c723cc0bde3c8b02e236775aa41611ee55f725cf6. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QZNWZ2392166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fe0b55f5d9b4e2aeaac8a0acf6c27ee32d5d83b2d982b81e6d3625039637b0. 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/QZNWV2195325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b70475e2ae731c65fc18f0b7d88cc3c12516f37c805f98a0a3791e2f5c30b3. 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/QZJZC1900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695c7a660b9c19b575e5ac4c2d2cc39184ca79aa5ae00436f99a1a861e2acf9d. 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/QMZEN1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf77c675e986a7ffa0ba1bdcd31a09dd2e455ced36f02e959dc31fb110293a19. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QMZEN1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd27cf8bb6bebdf5ca57d302fc67b419c6967703022cf2fa6d9eba1bb401c2a. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QMZEN1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b8501a9f01c0c0b6ffa84488ceb4c66006125c8248ed6a25c12e2340bbdc94. 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/QMZEN1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fae9aa3580865a0975e807de315b2a0cf16c779162ca1edbc055dc511e42405. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QZ4JJ1985110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f660315e285e0f7ab4d0515d24ca85a63a478954b08742150b587428a7f287. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/QMZEN1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ad09d161f7e143be11579e94616ca5edad92993dd9008a37ac2cb9498680dc. 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/QMZEN1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d15704c202d459494f714adeeb92baf19bf22a22f4cb923e26f79ff5a6ba3cd. 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/SEYOK1503456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd428d2cb604e345698a4a71b95b6c8b6aefdfc8980493f54e4bfb573cf6a4202. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/SEYOK1503457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45a6b6ff803e0a093e8b4cc0bef577df74b11d49889d6f8382d6db6a244f33b. 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/SEYOK1503432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9415e38637cb987057d070767741cc2d166cbc70963881df5e1fdc30087dd67. 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/SEYOK1503433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0fd724f0f3e2f2864375d23070bf673f9b08038005812980d227a19869f7029. 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/SEYOK1503434.
Free Dem' (Ruby Generations Compilation)
Free Dem' - Ruby Generations Compilation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754877b5645aec7a1600becab693bd70e5fea35439c78746fb38ada4258c4a49. 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/USQY51529851.