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 0x8cb45dd423a87566f02d09b6c147266c835b66b97f4fb51cb13a1353c154dabb. 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/2fe3d8f3-0cbb-41d4-91d5-564ef6b31ef4.json and https://artists.proofprofile.net/proofs/artist/2fe3d8f3-0cbb-41d4-91d5-564ef6b31ef4.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 0x990e40d964f4eaadac9d574607c1a3ef574a4627aa70fa85dfe0e1399d23f96d. 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/GX53U2028334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74783287ea6fdf1d9084822a519354ccb3e2997c2479990e1db0eb1b3bf8a4d3. 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/UKXN22481055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5bead575e4584a02cdaadfc1abfd8ee0ccd9b9403ff03b6975851179519a58. 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/UKXN22481863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3ce8f57a534f141e5208a2ece21278c984594433c511c95d4bfa1b63beea95. 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/UKXN22489402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1faa65b60a4cf9dcc7dc47c892d3ddae54334dba53b9211cc87a8dd2ce7d737. 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/NOUM72400116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9bc091356bb9babde231d567bf59c66ff99a2ab6e643e5585e62173c256f925. 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/GX3Q92469592.
Last Russ Standing 2024 (Sveve over skyene)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa015b36e82b8703dd0796bb2c3bb2e0d1775a79f92f3c2332b730d6f5cb2a154. 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/GX3Q92461646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41108bd716e2d5edd6bc6044e97ab16446b08b7bcc8c21ffe8dac443df8ba04. 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/GBLFP2490871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aef5075008258a4badf432d82ee2306a8779b10dcf480c476d8cd52f1646406. 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/GBLFP2479035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa404eede2c4c20d6bc8320a3cc0d011ebdd42deb4e1f0d50556c156a849eb3d0. 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/GBLFP2406018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9b7a8683a88882a68e429a76fdb4600600a171b763ebd5e30f43c14ff178f7. 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/GBMA22303379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f767eae0b20a6191ef7eaaacb8f34eee286f13823be0ed9530bdc4c44069907. 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/UKXN22391481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8246f21ab7e51bf72bbcc05d2fe76d31ad89f706ac8d4b6dc7d8500ffd925ce9. 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/UKXN22333670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3f858f07603fe72793733b4c5f5b06caa581328d9741891465e753a0cc832a. 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/UKXN22333666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb248c7379c049407c1fbbc2a4bc75d6cf448433198f1ffedfbb0493e669876e5. 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/UKXN22315959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0194b8bd9b0f452e3fbd5996e5f285b5157625762188525fc47cd8f21f2b6c. 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/UKXN22315958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9404befdb5a35df49dec48bc10e57733b850b673930dcf06f35acc97a3477ac4. 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/UKXN22310768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51786aef0bed505939ca19309c94a03e85ac720e73cdcf9fda48a299a6bf5d7. 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/GBLFP2395684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508ddddbba4203d8887ca2fcce7f3db01888d61a79ab2dc6f1ffb1357f50c62e. 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/GBLFP2342305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da25d463dcb7ad79518cdfb5f1c9774605e3eac21efad2d174cc0d932bf68ae. 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/GBLFP2342304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc1cc5169b897acef39a37fd19287cf62a7372f067e279598281a79133a2515. 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/GX3Q92327361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb981508bd8bd45355fc18caa4da13e0fd52409d8a6e06a90788cf7ee65b8ccd5. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GX3Q92207919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898c44e20a69c7510ee4f83789d1ebb8305fcf963f9864a78cc68437563a29b0. 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/UKXN22292742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e44bde3b95da9aab71373b26329e57a5666ddc131bd9176d762727c3358ea5. 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/UKXN22279165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e15792e15f313188ee65b00b199f222b539d6def894a4549156ca9c9a66ec0. 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/UKXN22259633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0114af589ee988f71f19afceaf773c8a360fb849b664b625828584007cf09924. 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/UKXN22251415.
Headturner 2023 Stabekkrussen (Hjemmesnekk)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e0b8f78c51e5721f4687af1fb514243e318c2d841ec518a091b414c5c3e80f. 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/UKXN22242497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea86d4aff9a9e4306cea727f9a1f6bf45e0fd3b749a391a90daefd64602dd271. 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/GBLFP2225563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311f555c22045c5da20cc597ad675ab76e9eb8b773b750b77c8a64ff02e34c7b. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GX53U2064409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6970876a01b8193643825d94c37560afe727f873eb33db069acd4c00750f70c. 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/GXF9Q2547250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f4d03ab3cf1dd2cd668b444510ef2b0d7787485f745a107b5297c6242446f3. 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/GX53U2418959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf0753df1ca49d32c90f3d38af5856161e99eac21aa75899742307c3c2ac582. 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/GX53U2366516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db50491a4833012fb21c9622e5b53ad3a217c5f05f20e268b327aabc7e51033. 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/UKXN22455319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04dea5ab13dde1fae8bfc40cae267a5773d733a7e0f5cf2ae290b95e0f44788. 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/GX53U2348275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef8b1ff79dab828890ba2f0dbca797ad366b4cd1d1a0f593cef3376313fa6f0. 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/NOX8G2400243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1b77f5f7ae3617d8f6e912be19c0b603f41275fd9e9acaf3c406a4cc88d715. 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/GX53U2344898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab25c43fb2a3cd0073bdb15294dd35ce039069680f8d3db3d31254ce71d02317. 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/GX53U2331240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671e3e62ff81df85e1b742dad0bdbf7fdf43436105236bfa9d817a6a9485e850. 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/GX53U2300655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3e1dedb81355e3cd82c941ed04cbf4660d52c7dcca820f962cb46ce3175b34. 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/GX53U2300628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe012b230f22e0f84ff092dc24804b97599923b10bacd560e870a620882b9635f. 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/GBMA22498648.