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 0x3fe287026f800f403142a680709ca0ad815144246c4d0710a2290ab7de6e5290. 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/95110b55-3b93-49cb-9660-d09d92efd7d1.json and https://artists.proofprofile.net/proofs/artist/95110b55-3b93-49cb-9660-d09d92efd7d1.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 0xf7c1d4db0db27c02365397076492f33ed97ba9e7d3bedd1a87bea7e9fcd396b7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEKC42400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4301366d403fb86c7928f07bf7d134cdcde9f16fd51d7c9754e46288621a6e2b. 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/DEKC42400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6301e6d2a8acec9b4e340c071b08041edf5af6db50cefddfff2b200316358d34. 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/NLRD52303921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff20fb810a87dea22fac07482d0273ae22b9c6b08c395c437b2e139c62171fd8. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NLRD52303920.
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 0x254641b3b136ac079feffcc734a7887480c061612f5878d2bd8da89a78edcb85. 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/NLRD52303908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d69033ffdae6b6c4fe2de2d281da0b4a3e6616b451a0eaebe7893ef7e6e09a7. 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/DEZC62410203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf953da12bfaff92dd9a7a41748c3a370e7e6aa594bc43fd8736aed6aea66e3b0. 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/DEKC42300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502d218b6deac55de41f2946a3e7c878e7dd3d39cbe702ff4b4642f3fc00e7e9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEKC42300069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bfeb1ad9cf866ae8af88f3899a0c5d5f38b6235b4a289c9326ccd1ec8a0a159. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEKC42300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832068e50c51d2bc4d588383b1fcd206014357ed0ce756d77e447f75e7ab5a92. 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/DEKC42300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2f636e07e1de270111ec42976e4f66485d51de119f75201975ecad18dcb0d6. 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/NLRD52119672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a10213c64462427b76b56542e2f3c8ee6b94bb825b962a6220a207784e99da. 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/DEKC42300002.
The Light (Alter Nature & Schameleon Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2ddfb775f00eb415c0d34b922a6ca984306a1b1b66edbf0c1dd0f41b131ac7. 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/DEKC42200075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9082031075df7ff83508067662fa5dd4004e9e256c780e98fea7d7eba57090d0. 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/DEKC42200058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505c69f3ca3173585af5ee3a8055febfe24c9576a47f9f5e34c7f2fb6b60fb77. 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/DEKC42200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45556f3013b56578dea23dea0019c302834e79b8f260f4809bd631a86e52a43. 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/DEKC42200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e016ea35501a840ad5744168c1626eb08a49da204be0a483d17e100b82afa11. 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/DEKC42200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5234e600980f93428afb9e95108047e039a1735156bd8f7858bf74393a6e42c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEKC42100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449d500a2fb3f07a243b035934947e94c7147b3d007b661321e60dd3611ddc6f. 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/DEKC42100076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84de6fe44eab15cf5cbc7325fd5ce8ebe99e7ede9238b1346f00aec1b6e06823. 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/DEKC42100064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2b7869c73101876563655a9301ca595294ef4387bea9b6b00d87bf0e07fe70. 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/DEKC42100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ba479db03b6fad15c8fd7e04a60ec52457b63c6016481c34c069b7e7d44535. 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/DEKC42100035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff13455ab3509a58e8e015be989baec2108ca6977fc0ffcda8cf7c62799eec8. 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/DEKC42100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe176dce757d8d1e6400050a26f669e2ee98179289bbb2aa204441e149c61c511. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEKC42100032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe250cf8b90f7033a6c40c77b48805cd45d690b8f579eb2da14278f08bdc13ae0. 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/DEKC42000066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ca9d87c5e5a878e7a4a1e28c5138535a6f4fda54990018e78104307d4f1081. 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/DEKC42000043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb39631d15450ede3fae62cdfcf249b454078c4144255382205bfa9ad187372. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:41:43Z), 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/DEKC42000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37838353132c612ba8d44f46d5f213038b74124329af9f28d11658740e74a47f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEKC42400063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e8f9f3dbaabd794f5aa05f3e53723539f1eaee4189f3c7011ed5528fa1232e. 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/DEKC42400055.