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 0x12459f817dc3d544853957fcaffc32d57d5105d4e75ace5bfa63b371e23e4f35. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/479b3878-1292-4b93-b887-b86a6b5177d9.json and https://artists.proofprofile.net/proofs/artist/479b3878-1292-4b93-b887-b86a6b5177d9.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 0xdcf03c1ebecaac7158f9769b976658989944e80de5cec52df395b699d9abe35a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GX2Y42200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf03c1ebecaac7158f9769b976658989944e80de5cec52df395b699d9abe35a. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/GX2Y42200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6bf09144ad5d3e6ea5db6777c4b2d06a79c1be6eeba134d8a6262ee2b7c56b. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/GX2Y42200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2b5973540d1339773d9877abe38c763c2f997348b800257bffba14436fb744. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/GX2Y42300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6e716ce60af3aef99628d984dd9af0f434c25a3cb426079c1283dff2ed5ee1. 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/GX2Y42200054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6e716ce60af3aef99628d984dd9af0f434c25a3cb426079c1283dff2ed5ee1. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GX2Y42200054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23da6c5c3e7dacb86f3b82bfe5cf24aca308ac5f779b921faca28b046823f093. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/GX2Y42200055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8dea428ab19923740314ddb93fe89299a7a21755843b13288afed906d57a07. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/GX2Y42300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef78ae3a8dff7ad5d80ce92b2fc13ee022b1d87f79c9680291c5ed9954559d91. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GX2Y42300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326ae0f68fcbb1a2bd735944d4a1e603f0a783d101f2d69c408e926756a06dd5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GX2Y42300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848f8219bb2e176228246cb4e7534bac3f6891b4a49b55a71e96cdda4cad3faf. 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/GX2Y42300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b81ddaa67e6b39f337adc8e31e97eab666609947dd107888502d86ad5feb0f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GX2Y42300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60cbf8d385a7fedf8fea44f3f8bbaa4c284ca8fa04f7e6e48c4d7afdc30e559. 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/GX2Y42400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b01687718f5ddef939cd973812990983b9202b9d900793685c9e1672a25b930. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GX2Y42400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3594abe983c6ad1f3263e8ff34d72b08689efdf20e0641d181c1cd22960e35d0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GX2Y42400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e29bfd2ca327d209dbc4c69fb635cff396517057a9173221526c66af32a2c3. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/GX2Y42400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841d8b29644c751a988b415de8b09856a1864a2975d1d56ac056c075daf244e0. 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/GX2Y42400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c911b7798f57ed72c65f9f7636f1e0016cc223c1cd3df9e303c95efb39f5b38. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:53:18Z), 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/GX2Y42400064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0467e224e0280f68f88eb3e9a1d3bd56f4b61c46e22f76826b7a51c1d2aa985d. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/GX2Y42400068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b43c8f5ba7f00feaddc756e54a180b21cb0befba0894dea1239b873ed23687. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GX2Y42400084.
stuck to u like glue (slowed down version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9896ed00ea09409d1000860a021e9990300cd31b99da0e54f5a9abe1171a9791. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:02:54Z), 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/GX2Y42400087.
the heartbreak diaries (sped up version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f075a4e7d242ab1e58148502fe045ffd235907713cb029374814b24e0b0ad6e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GX2Y42500052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b43c8f5ba7f00feaddc756e54a180b21cb0befba0894dea1239b873ed23687. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:04:23Z), 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/GX2Y42400084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e29bfd2ca327d209dbc4c69fb635cff396517057a9173221526c66af32a2c3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GX2Y42400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971572493c93043e3784766234062355ae19ace4786d9857ff942b334123db5f. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:52:42Z), 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/GX2Y42400123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd813c847cbd2fdbde9ce71030fec3dade1a0a7e2a55a26fa4790fd906e06eb. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GX2Y42500051.
where's the old you now? (piano version)