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 0x5009e2b725d9f9d32a43af523f4a7deb07a31e7721015d5a73b74cc77db024a5. 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/e2e11dd9-c8b8-4e34-abb8-472d4402a7c6.json and https://artists.proofprofile.net/proofs/artist/e2e11dd9-c8b8-4e34-abb8-472d4402a7c6.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 0x270626768f2eb72799e2587e472b66fb6d56adc2e3dd49654c58f35475394293. 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/QZN882127519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20cdaee48f5e9fbbbbebb28f5bf631b94257f7d5841d73a740ea13dd6bd84bd. 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/QZN882132515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124b892346cc03e5618960b3858aaa2720954e964c68b116e0faa6658d948359. 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/QZ4JJ1711213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20cdaee48f5e9fbbbbebb28f5bf631b94257f7d5841d73a740ea13dd6bd84bd. 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/QZN882132515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1c150be4f0a0b6a09feb1f49ca7ed000ef41ae038bc1bffbf897c9e083f52b. 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/QM24S2003240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b13a8843a9379c077e700ecb3b96640c5074e66c8d951c4c6d613388a3755b. 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/QM24S1926437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1858550246d5763d1a96047b42d356d19defd6124412611f2f6fcaca40859d2. 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/QM24S1922718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92adb60c392392aa9a835f12e10e10a6bc4eead2cef77de70545ca2648d3a7fc. 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/QM24S1912116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad375e3badb995e2f910b1d3d7db04f5d17b9ed79cb738636ced2517f8c242c. 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/QM24S1804230.
Redbone - Recorded at Spotify Studios NYC
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9afec56db3f8911e9bb74d9d70a39ed578fb9cc74bad7b6979726db92c65651. 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/QM2PV1772838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bed950182ba6fc23fdcecff0a341c8a208d5447acca3f6922511cd24931b35c. 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/GBKPL1781165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef49bcada9dfdd3ef905aba2fce1c5b4e6febc2c41eb8fed324d95b74e12226. 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/QM4DW1708212.
Soulection White Label - Chris McClenney
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2441787943bf8da070e2cd189cffb627844527a5558e4260edd74e17d007fa3. 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/USYBL1500664.
And After That, We Didn't Talk - The Remixes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bbd560da62d4501e694db3f34e29cf9c9a0974c4076a5e50c52308a5d6633ea. 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/USRC11601185.