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 0xc8947fbdce03b497882f24caaca576c6571c97e9d520b82d271e6b7e6f997509. 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/3fff846c-e210-46da-b3f0-6bada7e5707d.json and https://artists.proofprofile.net/proofs/artist/3fff846c-e210-46da-b3f0-6bada7e5707d.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 0xef4eb276ffedea7f78cc9a2d1b5deeb8c1e0a85f58ab9409750d51f4a7719e24. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/RUA011700180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe37a2d0dd5074dad8f8fb49388f4d03c6679590344936433a331ef56abe877. 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/RUA011700188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7151532cc25b43eae6fb8f365f8612fc014777c34b3ae2f2ef0c45a40a9cb75b. 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/RUA011700189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5905c676c76e90f1812fd362ec5c7cf3cde3829942ee0b49de48447eedbd3c8. 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/RUA011700191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fff12d5b8540f424165a045c0427f7446b924e76a6309f6cbb220d9e87bfe4e. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/RUA011700192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1ce7942b6b09df99990320e6559a923b7e8170991f4a932671908eac2ca39e. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/RUA011700193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf556d313c18d3bd18e4365f859096b3b26c5644c27faa8e9bdf04c7bc4325093. 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/RUA011700164.
8-967-$$$-$$-$$ II (feat. Brooklyn Benzo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6add98224745d320ff9658d46dcbb114854479ba88905ae808e93262d3ea76a3. Chain 2 (Bitcoin): anchored in block 957959 (2026-07-14T05:54:20Z), 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/RUA011700173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8f3019f434a0630c5d5835d4a56a727e3a4f231dfd20b04bf58ae138a35137. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/RUA011700175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20de8d0d93433048687692dd2461812cc511f2944da99b663476349850b055af. 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/RUA012100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a9855155e4c9b05398ed7bcd7085ce87bfdb5556e064a1eb673a8d199b054a. 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/FRX202001648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf15044974495f0d82878ecf8b2d2670cd0a0eb46b7dfe0140520cb4890916ec. 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/RUA012100046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb999eef1bfe5d6b1ffab7e84b84cd6d54c764b62d813555902358ed29678342e. 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/RUA012100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87682d31d296ca5f11c03d76a2bf0ba8d1ee8a6d03c39c991296f644eef74dfc. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/RUA012100052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166f844975cc814175f8c5bb1fea6dff0fe10fffaf7db7e0ce611a5dd08896a0. 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/RUA012100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdead9e9c3719765d70964e3ac8b4357d7e3686fa5b5fcf5ef30cf195a24b3b71. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/RUA012100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446185bc1be770656f0670b5eb2525bd1754e823b15bceec937f1e1c4d57cb1a. 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/RUA011700154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfe38a38bf4526060b252f49b19eeedb2b643f6f8ee10c967d47619fa1c1403. 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/RUA011800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b53286815d7db48e46f2c3f99490a028ac43b49d6eb8a237409c38a49d6189. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/RUA011800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d218cf8d089034d9039382fbded160bf2d0d5424147d3d10a50766574be10a3. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/RUA011900040.
3:55 FREESTYLE (feat. CAKEBOY) (feat. CAKEBOY)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296dd069d31af30f5be86d064bea185bb3a5f827c7e34a87ab8a1ea8a0658bd3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/RUA012000281.
I CAN KICK IT (feat. bbno$) (feat. bbno$)
Музыка Сфер (Музыка к фильму «Майор Гром: Игра»)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46829948a2c71bc086075cd6f84ab285d227b43b9827f469b06f6e8b51f1b4b0. 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/FR59R2277884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc82523cda4eb5279b78e49657f05c0bb18f69e2b6f87ad98af1f9a36b969b9. 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/FR59R2277889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76554e59b8d1ecab6643fc3df03f1fc3343bd569f1b54d7ab55f7f1cc85624f3. 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/FR59R2277886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8917d3275a165626482b569a0f154021d9f4433e346b6509c76bd078802403. 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/FR59R2277885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4399e5b43ca5d415e7b0174e4d535173b9cf5fd12ad3185478f63b35d7d0d4bf. 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/FR59R2277891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f139d4bb8a2db2504c522f6e4a93e928225583751f3b81c85253d60ff654649. 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/FR59R2277887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d5bcce48d51ca7c018c7f4dbaa9ad89655e72c7f97e192a311891ab5fb95aa. 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/FR59R2277888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d52c86bb08fbd8bce07053a96038d41a7c4f1a4ba19876e4a857a30b25c8bb0. 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/RUA011900444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2f6c283699e799a8f5ccc9d0edcffe0842db3bafb490ee79943f4f048fc3bf. 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/RUA011900445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174ae431becaaa55592c941446f97dc1872c61379da907896bf1335d355b3b38. 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/RUA011900446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1663ef3d07f9c6b835f3d317c1c3fce10a8dfe51afa5f748bc40213a4b43f7. 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/RUA011900447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290cd571059ebe11391d76c188768bdd07b3ece3fd11ae81f3275f8f5df1d2be. 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/RUA011900448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f1d63e4b5892ac400a9be5c3b2430dd5e7598bb773d1da9c5b8f749630c033. 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/RUA011900449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10ae56b4b57fe995025f3198d2cab8a971c5213fa283e98128de585c42ff0a2. 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/RUA011800348.
Горе проигравшим: предисловие к превосходству
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12c658e85b7d8ed01594b9fce6d122db3c5b39d1c016ad7d5f2cd25ede12560. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FRX202073318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe233e0a2aedd748319dfc448675b8f1df327daa1db88831a1bc8d9294d39a4c8. 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/FRX202073458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29f79ed3c9a823dd086c7569a4c13fa1064ca0fd050ae8f03e3770d09d2f543. 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/FRX872005872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4b04366ebae1e83aaa22d29be21ea5c5cf418010cc2115855b61272125cc78. 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/FRX872005874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead68b115ea664df94966176024dd74759f7c35f448c463d3d0e56290322a2c0. 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/FRX872005876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0ca6d66c1f3d3d806dc1b300ebd12dcc34cd7d51fc09db74194cb55e62e594. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/FRX872005877.