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 0xecd24db790d7b9f1b18d5b1c5da52e121d8cb4629ef2f706fe6fe8deb2c81b9a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff14c222-4149-459b-a129-7b9182a4f7ec.json and https://artists.proofprofile.net/proofs/artist/ff14c222-4149-459b-a129-7b9182a4f7ec.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 0x5b72a614b725df48fce06f4a31642c04882eac4e11d329da8baa62a8397dcafe. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/RUB421601105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777f28659c31ea9cd51ecc07ac2321260a4f6b84341d9096300ef5f5fbf9d601. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/RUB421601118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497c367e80985a0f199d61f41465ad9d058dc58e4aa28575625cf25003b34cef. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:36:45Z), 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/RUB421601138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe248d4fca907f0aed73806258397dde0961266cd2559183f88f3f56f3e003fe6. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:27:59Z), 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/RUB421601174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002e5222bff0a3d88bec513c963b3248a1b1ae005ac9ed3b7c0fd38c449c2ea5. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/RUB421601127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078206b9174f936672d113bbd25ff846bc62a00071647f5a4dc4fc11aa522082. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:21:32Z), 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/RUB421601131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf465ceb1673da9589e42b55f6cfdf5f29a46cd6a5bb0cc7f74eaa7777eb5132b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/RUB421601157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0a28fca39654e5731e113dabd2c597b58f715f90fcf8d302a1dc80f4acdccf. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/RUB421601150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1511d30554cccdc3be952e779ce0d73aeade578dc0cceaf026d71c98b8bee3. 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/RUB422001503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ec88635d6962428366b52ad97dc070c91742cc9c048df8cde67ab156cae4d0. 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/RUB422002786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69994bbe3ddf834878b0d8d5c7a2b52995d5f8e89d136ad056053fd2956b97b1. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:23:58Z), 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/RUB421601487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1bbe2f734b3f28ce5bdc423555dc574a39a6dd3dbb27068d1b9ccb9c847aae. 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/RUB421700973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9edb0d51b63d72074c44b5a1b6b3c96dfdec3290314a412a4ef45eb09c5b2ec. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:32:27Z), 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/RUA591800839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3ea627e90022c39dbf356f12d25a4552959fa999b3023d0df8d267efc061ab. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/RUA591901207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb718a647ca195cc700bde29f4210fa969e2050de36b4b38f6095c60425e63bce. 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/RUB422002787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac379c7e377d8f7e14ca1e7ae64dc28ddc942511f32a6b8c1e9dac2af934233a. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/RUB421902249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa511ba336b623b43cfcdc08ad99894c2846776a2ae7e60e0b0ee18d9bbde2e2c. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:34:51Z), 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/RUB421601191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6cb48f27fafe333786fbf7a17a7d4ef51db393b8e0f963ad6b16852c2321081. 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/RUB421306220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0635f7430fc9a3dbcee2d60a636704e76a4d5aac78071ce6e9f3d9827370e27. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T16:58:53Z), 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/RUB421500950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76777540ae9d6fdc24503eb7467119b1e93e0fd22ff3a64d167f3fd46d95ad51. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:31:07Z), 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/RUB422002789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513b413ee39cc5ed0296dbf1dd1431174f0a1c49196cc38eeee76423f84509d4. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/RUB422002791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e87d6c4a32763191d13484f9613b89b7142afe8b8910410b8ee9849d574b94. 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/RUB422103937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579cb8ff3169c24120a3d424a29bbe7866483393facecbb9a3e3168510e8ea72. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/RUB422201828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c3fc054cff4e0b02d577a0ec6b976fdc8c49fe482dc4916fdbb039c99a7668. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/RUB422301664.
Берёзы (Любэ 35. Всё опять начинается. Трибьют)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8012f8b8b876ad6ace693ae8052f05ad2d83e899c5f492645b135e65a5a4d6e2. 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/RUA842419310.
Я так ждала тебя, Вова (Uma2rman "Звёзды считают нас")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904b3689c301f6ae784c30420fc8714cc5ea424588a07c3ab6066b582820d8f6. 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/RUB422502959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb311877ae010fd5efb18c839f5d390a31cee7809dd8cf94edd594218f87892cd. 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/RUAGT2465786.