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 0x2c780b321516cf7c17eec8ccd06eb11de399dfc71f1e095bbeaf229a6a5b1b73. Chain 2 (Bitcoin): anchored in block 953903 (2026-06-16T07:05:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/14c32e71-b431-402c-aa96-f9f908698b42.json and https://artists.proofprofile.net/proofs/artist/14c32e71-b431-402c-aa96-f9f908698b42.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 0x24286bb546c059dec0f40d96120a02d3f3b5a6b66a4749c9e5c8998036ea27ef. 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/GBKQU1877986.
Accalia Echoes - Compiled by Toxic Tegan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec9f6facafac917c689a0588e0ce449377715a9b3edadf1010a2be008c06f54. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBLV61820366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9acd0cc6c8047a521647ae3c7535538ff068401ac37d2c82346b3b7ff0ef00a6. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBKQU1430865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad5d7e5513dd04da0e1df9d5cc435a60c83eecbc509cf5ba79b00efc706d7a3. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USA2P1650354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafaceec6bb60b1b4f21866b40a682dc2f971d3bab54ab58df3b8b5a4a6d89d83. 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/USA2P1650355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4186c80dd9d2ee70c9803534b68e608d62c9be69bb3cfefbe34ac305486b5d. 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/USA2P1650356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916f0212c3142f44b464ad225f12d255e006a5ab8247c9fe5d15d905104e98c0. 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/USA2P1650357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0bb6a3927e1ad52a1646ae7b2672f05fa74172ce938b2e96d56c37d23b5cec5. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/USA2P1650358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971903186d48e986fad9e73f0c7d8e80dc94c7f7abeb2c1c9583379b9d8aa892. 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/USA2P1650359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e70193157e7f8131b9044bd58ccfaf342eadee5f1764dbaf6c9c421305b088. 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/USA2P1650360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac15db9dfe505c9f85aaef8f1d8bc62e31c0075d106d082c893c5adc1b1ebdd. 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/USA2P1650361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe185b3e7cafba7d01949b8422b806f501a73f1bc8b1bf7b9061a66678859d7d6. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/USA2P1650362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5e01f87dcee33e3297e68202aca65b49de12cca8c1cdb397c853367aafb359. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/USA2P1650363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498e50a5ecd52cbda768de3c306f8747862940fc2d1ff192b179dea3f516b9c3. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/USA2P1650364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e70a4fb8b656fa9b311bd31c91e3d07adc5210498d0342af64e44b929d6d8e6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBKQU1420057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca68be1803d9a4990008453d8cf9cf5c6a79d9bbdec82c70220b65f5f1ed124. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBKQU1729243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d668eeb9e8d91209f21c9af49d9b74c41408e92edecc9e06c3e8687dc1ef86e. 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/GBKQU1729248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb22f49b598ef30ea4fcc0599b5a586ffeb18a66fe20182d64a337b559486be. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU1729250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85c95c7b794221a750bb592ba57b8dddb953b5e084abcc277e2792d9c10a676. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USQY51538201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedba6701215bf106d93f24a4070c8ed8136cef6c900e3eb766ceabcf4d63640d. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/USQY51538202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa250e4e02d62f102c191fd9ace798debf1870f7dc505b56c00e7c8baa331755c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USQY51538204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60be1ec7057ef673257c0b59afa4695d3b72dbd6b618d4f67a281cd8907fee05. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USQY51538205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ea29d4ef570a2a92c6db8d7fc6895556c4dbd1809d54ff4af3fde9ec2ec15c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USQY51538206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bf41c25c597653da9eb663fbe331c4fb6186226fb4e88a8c3c038f1c9bd40d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USQY51538208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d7e5ef13afb43cec5b3d33ad3bd482a38a2a20135482652fb373bc48714377. 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/UKR6V2076406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997e69ca18faeef877091ce9af0d4982384d628f2ff9e1bf0b58359d25bd7112. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/UKR6V2076409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771ca548a56dcdee06cd946a6a9f751ecb0ac0c9e26e4becc4ca6797a288d944. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/UKR6V2076412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45e4240da68ec30c3f25c19ac0b5bbc3cfd54b2e0e82c81034b0331d6c1e870. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/UKR6V2076413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e148dc88c244ac0ea62596946c5b9fb1c0277fa0ed74be4f4816b07d7f5ffc. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/UKR6V2076414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9829019d4bebefb918b13d806916f2ffb999f1302daf9eb7f70455cf63510cfd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBLV61626513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5cfa6cce9222b24472fedb4d78dbf35d3d7eeca4848e6bb5e15e670585af5b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBLV61626514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7219eaf639f902159860ccf23942ce48de7645dc4be5a6f0b765c64aee0bfcd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBLV61626516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9243c5ece6ecd0d3e3884edef9b79a15ccb835601f69d0588a8d1664636a71. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBKQU1644960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33648416bb6fe3c80fdd957c2e58c4b0fb733381823c0fc92e3cff6a8dc70081. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU2199017.
A Matter Of Perspective (Compiled by Nuks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988a3bd9a053b61986333d17161f2561ac6e6c6b3a763a636f092eea6b7e68bc. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBLV61902752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9904580685841c6e1a14f84a9f8e2364f6bbec3773efd520407af397eea0bd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBLV61902754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23bd69a1f5c8f730b2d71be9e47decaffbff2487ba59ff543e37656595efc49d. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBKQU1581939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15222a7cc85880d4a990895726d787b2ff956fcce2b0df845e66969454c65132. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/GBKQU1581942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eacd20a2cceb401a6ae6b1b982a661f80f814fca0863ac87c40b628338b70c7. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBLV61501256.
Woo Let the dogs out 2 ( Compiled by Rustlerfari )