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 0x16e694b8ccf32b74e0860da18cf153bcfe5932f6f00d1f268e23d17cf46b41e8. 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/f62ea24d-320e-489a-9acc-88fa82b6f61e.json and https://artists.proofprofile.net/proofs/artist/f62ea24d-320e-489a-9acc-88fa82b6f61e.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 0xacb0013f28194e6f7fb89d0a2fd670a2f19deac1bfa3451a38cbf7cf022af478. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/BGA671993306.
Лили Иванова изпълнява песни от Морис Аладжем
Лили Иванова представя Панаири и 11 други песни на Тончо Русев и Дамян Дамянов
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb25bcc9e589ad4f21c15b12cd6efec5016284e544bbe7a5ed5c9a09da7fbcaf. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/BGA672114102.
Лили изпълнява песни от Александър Йосифов
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9cb187533bf019e1eaaaa6fdcdc632ad732ea3befa8f643bca11f2133b3646a. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/BGA262143901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15f1476ab45fa8f33381bfee93ddb2f6981ae835e9b0ec9b04333f347563d26. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/BGA262143909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ca59faffbeed312f399c0fe54af83b4d0302fe2259c88c99470994095db0b9. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BGA262143910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b25ec15f65fa0bc55087330953558f1f7d2d99b80da73d30e325ed06f3a505d. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/BGA261083510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3bed7aab37c4000527818669e29b7ac66c5161c94cfd958628788d46f04712. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/BGA261359313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a217a5fabe50ba27e117b935b093038ebd26406100998464ac8abf53ea2f553. 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/BGA671416006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751336459b5f8e91904f8c9393a6267bd97fdc715e766172866dbd6e19546449. 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/BGA671593902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe960ca2772eb5e680e925f3ec99952efa355b99acea3f7563dff01b05f192514. 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/BGA671593501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb46d2da42f0e0c2d1a8e3622d0f4bb1197bbb235b170b6dbde04b4de8c2a29. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/BGA671593508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9cf782acb977c91b810f058348e1e228fb2902a62c833ab85557c2e97e9317. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BGA671593808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba01ea93fd9ff291c2982ca46bfba681a6d5336b3097b502f84827237b8e7e7. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/BGA671593811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3592a8cd2015e0b96f84b39ec110c0ba651860de5733a37c6ae242ea0a45fe. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/BGA671593601.
Лили Иванова: Live НДК XII 2019 (Live in НДК)
Лили Иванова: На живо в Арена Армеец (Live at Arena Armeec Hall on 22.11.2020)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129c9d1b0e6223bc4307a01ea37707c78c2575237c6130ceadeed4821aac8fb0. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/BGA262405060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac86bf76cca1923c3ca95ae6cf68589c385c2c7dd7d4df54f92810c8d7642cd. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/BGA262405061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66142883fde3182d3d697ebd66c2d191a938e9cb8d753b34bdea1dcd6b814be2. 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/BGA262405062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa043efd586b5690566b213bf438b25d439eee2764f58065cebbb2c4b3c76ebb9. 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/BGA262405063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740ec3fad72ae1ff6e1cbbf8c9dc59481e86db2ffb68faa6dc7ffc445bae798c. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/BGA262405064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5b63a7c0a50c03b24b8b551c5aeb0a7609f87b7c0e6d45f94c1add5043f83c. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/BGA262405065.