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 0xf14c9c3d63dc5a96c6801e9671ee48b1ba69b4c6fffc6a5f662c07187b50b541. 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/2f3b7e1f-b2c6-4fae-88cc-ff784ea4729d.json and https://artists.proofprofile.net/proofs/artist/2f3b7e1f-b2c6-4fae-88cc-ff784ea4729d.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 0x7609fd4f9d61a7f98db270509e2a28f5c38838ef042b74797a6f5296c6787e38. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR59R1981952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8681a1c070c92f9e68e8988e4fcedb9f9562df0c88d045dc3abe9802d929c86e. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/FRX201969127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ff18dcb94552f3d878a20b0f0d842a4854729f63252531490db3b563706a92. 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/FRX201911611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44aa42aabc09427c396a99a8bcc9ff3204c4777aaeea00f189aa319f36052548. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:35:08Z), 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/FR96X1937751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa893316460c4233e596e2c7d3eabbd6e9eeaf9ac38870741ecc1d258ec090a95. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:45:16Z), 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/FR2X41926736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137c9a0f5e90c0931e965d1ee47e3ef39531ff503be6825161fa30c7937da493. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FR59R1950563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa728ea314f46973d5a177bc3f0f9353c34080c2422a03d0cf61cd61e06ca612c. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:49:52Z), 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/FRX201969130.
Малефисента (Adam Maniac & Alexei Shkurko Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24dcfd1bd4019f7dd5a600bd35331c0bb6c1b0dd48555bbd587594b2fc649d14. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRX281951795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd752b9fb15ac1c34978449c98dc2a489e9783965481fd59d582267dd04e443f8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRX282061563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf90ac701220c221d5f79b18c4777958750f2b112ca88ef427108693fceda9e1. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FRX762022162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52390a6556b4c9fb9cbfdc0e1b787b293546e8dc6a538a7f74de4ef92dc28c0a. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/DGA052014086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64dc57f919c11106bf7e050deda3aacb5b60a345a109c1ed27424837bdde22d7. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FR10S2153347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6eae9b687791ec4dacdd2409ebf898f13e1a3e42525300196b6786b0fd2e812. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/DGA072121139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614d96765745d1012a29cb7eecb7c2227f90a1b08789a634ee5dcf985c8fe769. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/RUA1D2121031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbc85c22b812c46276d71c0715d652e93979f9a4a57f542deca427c8771489e. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/RUA1D2203873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf901f7b7ec688bf6793441b8069d0fec5791008b84b9d3fffe048a58a6ee3797. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/RUA1D2205591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68907585ae911531d23cf8e1f83b671b736d614b622d5dcb84aff87afe291e1e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/RUA1D2175566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2434a47be774d6f342e71af1943a8e5154f9ab2df2fd90c27672747732b520. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/RUA1D2304862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d565acd52252a6cc1b8ff1ec91a3b8b602b38e185b67e78910fd8fba94afbf. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:44:25Z), 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/RUAGT2373192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f63ba5fa1f79f7243635d39aae5c0e931de5604c17bfda9e158fe3b3102b2fa. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/RUAGT2441791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecc2f9e623ece9244a7c4e11dc4a8f7e8cc178d7252ea60ea1a8aa109116944. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/RUAGT2461210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657217b0d5f4182ec9b56f4ffb000f0bb355df0123ae8bb51da1aa5b6ae58ed4. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:00:30Z), 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/RUB732061506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b195f5c2aaa12d30ef71480a9131c288064edcb50324ed56a2ec34b163e6b59. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/RUB732071825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b374264ccb56f392e9aca0b38dfe55c9dc76ac136c8499c026dd8b22e7d435. 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/RUAH62422650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5738e037817e4011bfd2e92f88a55d960667a6f6edaec24d8cd12d6a86d1a1. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:33:36Z), 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/RUB732072913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79583a7422082f626ddb6626ce65a38400de9d6e9b305527179069867d7f34e8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/RUB732075118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7554c2f74e655ffaa87917a284129ad333c2eb45e54b8bfccded49074e87f27f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/RUB732075144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f911d745100f82670796acbce2b24e61584b773cb7f6c01b451d9f12497bf8. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/RUB732075138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d285abf887b7822b20a0d9f01ecbf11054f5435c0ee71aa8730d1a2e970419f. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/RUB732075150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34aa1125ad7fe6fcc5ae635aa17c7b749b44fc7df41c0f13afa970f656277be9. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:09:39Z), 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/RUB732075148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98fb8b37e3738dec6a59dc9afafed3fae2cf2ca72de9cb06119c89fe5bfa2425. 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/RUB732075134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09fd9802de50ff58891816555640cae7840b19d6eaecbef279b730c8127b5453. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/RUB732075130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce3babe8edc749337780d02c83216482d53e98f98f60946d31128a3dd09c476. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/RUB732085265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94d1986c742830becb88dcc92b52da7be1488de038abbfc706d423ccacef4d7. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/RUB732075140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66395347960190eed067e6a5b473cc6306076731de92957c50186b8c1a63bf00. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/RUB732070296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104881f8d1e8223545b834fc82c5aaf979459fc2ec120760e9e79a0b59a7b590. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/RUB732071827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc2b82d044b596af9019b7769d69489f3a9236f0e2455ec9ce2682824d9dfa3. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/RUB732075142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf9b767d8bf2a4709e665158c8cc6e064aa4544e7c735628ae3c4bc67484fc7. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:48:09Z), 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/RUB732083313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612a1492ceaf7eea7fafbbf6f68800f5b72870f854a9bf3b91463e2e93eb2706. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/RUB732083317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24a0435e2daa3192f1a02efa32aa3173131dc9749ae2d408acb6a2ecc066945. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:54:24Z), 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/RUB732083309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47bbcc9f7ed7c7cdc51b0319e337395ffc6fad220cceadce1f969515e8336ea. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:42:16Z), 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/RUB732500980.