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 0x617f9419ac0a5e8aed624648e74ad110268bb56dd959e750178cb4ccbe92590a. 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/2b951557-0a14-4d14-ab54-76987a41f3ec.json and https://artists.proofprofile.net/proofs/artist/2b951557-0a14-4d14-ab54-76987a41f3ec.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 0xd21ab2db27a128d824cd5a348ecfbdc4b4896024570e3faae39dfd94c2dc9136. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/TCADQ1883283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a687a6a808f59b3af2c7a6d042256090a7e96aa2d85fcd90d6fb475ff9f94c. 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/TCAEB1991242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f2d64c10cf4d4aa468fc2c8ef43bfe4025886818dd5d7062dce2894944787b. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/TCAET2082371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2bf1aa04bff6bb5dba7a57a460a5483406618051c63abb49be4127c95a6830. 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/TCAHK2351775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf1dbd32bb0afd56161dbdecf5cdbce060d6f2a334d9e6fe34a7e8bda8bb1c9. 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/TCAEW2051605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b3d32bca0a6601bf7f2efe537c6bc830f991aab95773f5994a0e90adcdcb50. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/TCAEY2081602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ec63478f0ba823e8c5ac6e453785ec8cf86501b48c2268717d25ada355ab16. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/TCAEZ2025380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4bcda4beecb2c724d11f066024c208bd2909558f5361928f2edd28a26541a9f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAEZ2025435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f15550d78a92ab83023968f580674f818cbcedaae212c1c42659eb68aec047. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/TCAFA2005136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee1e38e0a8acce6c3e3bcd9af9a35167c8d97a0bf603e1357874d25f60397e4. 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/TCAFA2055552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465d261214b57be69a690b639c0ee0afbfc93b2f2472ce2fe59fcf03755a58a4. 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/TCAFA2056574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f8abc7f14aa76262f8d664c6f686ff6db731711b455799686e8f5c7ae1536a. 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/TCAFA2055628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d362af5f94effbd4d3128ca32052a117b81f4ee9a32cd38d1185c95a299949f. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/TCAFA2055665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe825c752c659e4677a1b219ccd55c6e0bfb997828b8415827ca5046a4f0e9dc1. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/TCAFA2069972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c97773d23dfbb812cf92543e470b3aea057f6f94bc018b44e3a51319d77f4e. 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/TCAFA2070105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7679653952d4bfcd8ede5fc89a758c42a0d6d6eaedae8dbff2926ebfa0014eea. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/TCAFB2014269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4dff7d4e158b80e92aaaa10c914d90721557bb1f73dca6ab208ded5b7c2f49c. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/TCAFB2014230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78cbb142d4c8f19a1e585a8568a0b1050e55ff76840d63bace338de6d076b37b. 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/TCAFB2014362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6f1a57bbd45b3b30637c4791b1e8eaad81599afe683da9dc1558af4439ec9a. 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/TCAFB2019097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469185a2762678b3498f526d9a97276dac0ca3d94306ba052ac89ca11f84c3ff. 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/TCAFB2019132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691c50424f47b715bfa06b534298f948721ef181ffff607d814b0b9b54a493aa. 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/TCAFB2048990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6efff0672b7a11c6be9e6c2d8fa7fdb7345f6a2344f61cbeec2ac98226ca01. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/TCAFB2048806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13c0bfe6ff7d994bec60f29683fdc1e295fd0453abb30b0fe76a9deb8f850bd. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/TCAFB2048936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c44f81f217576be2df6cc501548d33fd6eda6fd54c776331b33b1717e8dd68. 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/TCAFB2048735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdf078877074786757da655841320d6ff3bc77f75d61f58951c5118edba52a6. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/TCAFM2122062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e817643f7c44a5ae31db74a03ab359582a2c7da3b7c38287bac82a93a52ec7. 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/TCAFM2122193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566e2fffb64d9091d012cb4cedf10348b8bc1345e3cac4eeabf0e19f35ae9fa9. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/TCAFP2119880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116b97e2406dc26b5381fd89be3787982ed260f5a4e5258f90edb445a5678e17. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TCAFT2114847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ec520b43712440879691fd9dfb438e49297512cba5f1cc82d29b37555940d2. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/TCAFY2141327.
Demons Are a Girl's Best Friend (Powerwolf Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdddea1a80a1afa8ed3e15aa5841056ac796809c6f0e0bdbbec9d815cc92a091d. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/TCAFY2189059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38290de6bcf4d5b71b582919f7d1f67752a2adb9f68c2efc53acbcc947f567f9. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/TCAGE2241631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a866466b535d828a389ad18b9c7cd4b61c19f170eb9cd74c2ffbcc6e78875b4. 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/TCAGU2362704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be555bb21a3192a10a3cbed6a0f4c73e28e2c5e4d0a16db96b5e227f4366a5f. 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/TCAGZ2367722.
Прорвёмся! Опера` (Любэ 35. Всё опять начинается. Трибьют)
The Attack of the Dead Men - Live In Moscow
The Attack of the Dead Men (Live in Moscow)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf741219a5d3967a0738ece6da2a2f83ac53637899f387ee4dddf7728b6b02c9d. 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/SE6HD2000101.