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 0xab16e06dc5485ee8a16b15167cc1c2f124504f8983a257a423c90c1548036e44. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/922a821d-11b0-4bb3-80a4-eba0d297e43d.json and https://artists.proofprofile.net/proofs/artist/922a821d-11b0-4bb3-80a4-eba0d297e43d.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 0xdc3bf7eea998ba9c2bf66c3e7cf4cc1a44971b791f7ab444207708b8eaef1c94. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM6N22475395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dcdd946ae850efb90a1b7dc406485ea1caefc51ee4f8c8ebca3ecdbd4972114. 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/US39N2300828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5100cca18984e2337cacecf2370c602b5ddf43e2adfb5cf14166f7872eaa52f1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US39N2300896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0f8dc27ea5f4edbf143de6c72d9023a02bfaa7ab600e9f02330aca686f9c9f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZZOPM2225581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc19605ffa548f223057700269627a24ac9a9c816185b51dc0804244d8e976b1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/UKN6K2200729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1ea9513cdb64e5d773522a4daa657494b17cceb21ed39b73c177be1c2ab3ba. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US38Y2415101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6392b45284119eaa7107937cc073ce08cd74ac648dfbdb6eb77f7d4f852ddba6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AUXN22450352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4965ea695229750faab2f75a223b9d915f9cc3f4584a4f99195a49539e2de939. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBKQU2405598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b20a862374b6115de292646ada593278b1091ca0f1a9a52cbf87b4038267eca. 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/GBKQU2375624.
L.S.D. (Love So Damaged) [Main Phase Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea31a11ea48bfef92468c5097892e849f786380444af80f8e0c66f9f14e76f9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBLV62202367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf5da59b37456d9808e8beaa6238171c157256b9e8e170dd810fd024db8ba7e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBLV62202369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb28ba80e949387d2f0db91ae578514a4f3006468b356104400a4132fe891eb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2268859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef039dc6df5228b34db79e3246c8239309682efb5d8f2e5f2dbd609773eb4605. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBKQU2268860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84fc9478641a130445b60e704f91f7d5d595f5f0c1da1c969d642b54a9fb97f. 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/GBKQU2268863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfd03c6e66a7f4ae35ab1768d7dbe5b146a70fe1c7f1ae56f2bf0bf8ea8e6c6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBLFP2243564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa524041c71a33c6a50d49cb80c0f5a615cb8dbf36b54d7bdc0630b2ae3e8138d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBLFP2243563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa318d51b36ced728450911edf75f8f6071794ddea889aaf79b3e416df70b0ebc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBLFP2243562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d43e0b6fc922c1ba14bdbbf005b15c3bc72cb04301e377073ed28d4909e66a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBLFP2243561.
We Ain't Taking Orders (Main Phase Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8b06112c4efd1654bdbbcb3a247b9ac75f03e57188eba6b07fb2f8d7f325d1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/UKW3Z2101663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d668b67f423f4d311f6e8c407aa4a2a418b12a99ac4f26451849dbf1f55f27. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBLFP2235760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6443a2c75212e10342c606ca2be1706a4458abd233dc7a9da1befa49035f8d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBLFP2235761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a83d347e1cc9a10dc7b55cc3dec52d8eabf15b6e7d867c5a7fa3ee51309c795. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/UKN6K2200943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be4f2c18a4f33cdaf67baf1bfdcf5e2bf7658bf70a8c43b497e33a7187c2fef. 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/QZ5FN2009719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d17a106676a503b69ee06f4350de9dace0243b5a3c08978ffb1414e27c08c65. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZ5FN2009722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafcc1c1964878d2cab1ff9149ef1069a4573438fa2382547e89dab2f05f48879. 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/GBKQU2393087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b032e6e8f8c5333fc6394e2105d2e348139f6c9081a4923f498aa97b738a2f7. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/GBKQU2393088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e9dced3a40e92643d4f28e82db0493162eb6e4655726e9502089efe359ae5e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZ5FN2090622.