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 0xba9c899e5a621dfbcef0737c53efe1ee23285b5c93b401e601af67dbf1888545. 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/46e30dd0-08d5-487d-b9c5-7fa958316ef0.json and https://artists.proofprofile.net/proofs/artist/46e30dd0-08d5-487d-b9c5-7fa958316ef0.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 0x1eb2e7d480c5b5286cc7da8830bd96da3bafab5267e4cb131d036c0f123146f3. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/RUB310800102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4d0050191e04075b29086dac306cdc0d7298a4d6405620392d99fc9f1a2360. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/RUB310800103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3cc55a6a758177c41aa9349a783b2f11d1778f95c184553c5eb8f490b18a5c. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/RUB310800106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e04fcc1f5b776ace2809dbf7956e56d8ad1e8c736556a88af92bb14209f37f1. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/RUB310800108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7164b1837f8f7fa9a9d5bfba201f93d70314a2807e1cf5550d6be23142df7d. 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/RUB310800112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e7b9a367ed11fe1c7b96e8666e48d2cbcf314b190e6cb72dfd6d7218771ced. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/RUB310800113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4680d7b2482748a3a7efa844e519c91f02a2ec87645888fe55cc2688a5440d87. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/RUB311501102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3ce17d45511bf11cb469f634b08ae5b07e654037588b24cb2d2c9687ab1819. 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/RUB311903801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703b97d1c64e7a33e2846a4d51bd9bcd6f2afbbe330936b727ca6f72de640b14. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/RUB312102802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c21496cadc4daa15acfe6a29177d2e48b9538bec7128c516db59a8a90d65b2. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/RUB312102803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37da869dc32e4f4e9874cbcb4bf4adb07ca4752811b95616b963a1ba7612bbc7. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/RUB312102805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa285976d7f549810609c153f5ddbec5d609a3d3c11bd9375c71331d09031ab92. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/RUB312102806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788ff66c6e24fed2a6f103a61f4bac9e6b73c87da5614e3a65ce941f98229894. 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/RUB312102809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d4b9f8760341da33231e1d74e80c530ba327d333ae79e11954c009e84650a7. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/RUB312102810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42b52f4e2dc9bed1069cfec0fc0153162ee86621eb1e66022b2a6f8d70b879c. 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/RUB312102812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2020f1ff7e2003cea291d543a787abd1cb3f4f193a47854eb79fb77f5579b138. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/RUB312102814.
Переведи меня через майдан (cover version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe84752727ee2cdac299176ebc8bc1ef2de760b6a62e3c5a5c2ddbc0dd58dada. 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/RUB312102815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744abbc22612b556810b911f14d5753b05fc10b6943cf92130eeca502059370c. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/RUB312102816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86daf9fff84720a68ef76faf4c37948a99e06dfb0dbac9ba0aa5d2dba3b384a. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/RUB312301301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e8fdc30d7d183c60f99a30ed5c7f28d7aabe1341596f5ff1d0cd8bde244ea4. 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/RUB312309201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7053c6a829fb1ac734743fab68a5d6fdfbf85467167b29660ce93e76e45aeb09. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/RUB312400201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf695672fa0afb8e0d493632688744c76fb986a1304c6b643c8846b21b0d8162a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/RUB312504701.