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 0x69f25c24de9d47282a7e2295b3388ab5096519bbe5473d2e2d4a227b550add6f. 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/0080a0f7-8250-4a68-b233-c306c3923b42.json and https://artists.proofprofile.net/proofs/artist/0080a0f7-8250-4a68-b233-c306c3923b42.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 0x75edeeb08d25e9e7c211ed64b49bb3b7344c0b45cc9074cae3534431018f2aea. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR96X2483649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7005cdbb554b493d7552c1fa674013d7c3f95187c82271d7771c0998c7828f5. 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/GBLV62418015.
I Got That Feelin' (Demuir & Kerri Chandler Edits)
I Got That Feelin' - Demuir's Playboi Dub Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d5c1099e88424de266cc85c2790413f104edfa18568cd7f2727e30418fde3b. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:42:08Z), 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/GBKQU2483751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1456c9ca002cf46e0c07afcf100fffff70e289c613cb37e7991b1c07cd8fab. 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/GBKQU2403766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c59f0e9748dc0510700b2de51720556e9bef64f7d713b5a756d9d42d5d7722f. 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/ES94G2336005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463be7eef170139d6fcc558addc77fd93a2936623fd484ed5ce46e27e13c10d8. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T16:32:31Z), 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/GBKQU2365461.
Watch Wut You Say (feat. Amalia Leandro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd162d8717d68818c7317c66b98acbe30b4a6a9a0537f5ca00dd8448572da5e07. 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/USNRS2342909.
Watch Wut You Say (feat. Amalia Leandro) - Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5dd6f8d3c0c0372856fdd1b297caaacae2fd5ff3d6dae2758fbe7dd4fe9b40. 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/USNRS2342910.
Take Me To Your Body (Demuir’s Playboi and Rhodes Street Edits)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57edc4bd21781102f5f38ff0a8886af0aabee61037249118d724c1cde43dfbb8. 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/GBKQU2305426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2439f68321790c851e6fd56e3b3567d0a0b2e1d01bb644484ce076981f36f3. 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/GB9UU2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee338a37e70ea2100e5ee100a36e5d6f4629fe2450a511532fe0aecaac503e4. 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/GB9UU2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eded02c3ca427d1d6944f2b31972b85a81df96e8e51993eaa41ff58e7fb0e52. 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/GB9UU2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d12571b8937f23a1c3baed623ab829f48e47f2d652c973a1f06c78c72e3583b. 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/GBLV62107813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388b90df71d415033ef7a476364e63d19bc2cdb582228c36d6e8fa715de66a98. 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/GBJX32128005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b1812477563f49624792707158f84d0853dc0c4d3f79996a87bd9c415e1fe7. 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/USA671600184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e885c6c0e4ca4dabb0c6d6def85ac639517137160e86baecc3c9bbf33f9ad1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ES94G2018706.
Soul Muzak - DJ Sneaks Banger Dub Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8101464f9f982fd4098c421ed5b02b446b986bc4655ed1ecb7a65d05bf9893. 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/GBKQU2033827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe163b0dda319f2fec173ba26a3c08213552f2d13ae9ebba7151d151a215119fa. 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/GBKQU2035780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9e1da63a354f02ec9418ac4b86107fafa5160b676c1921787d55d7e2e1093f. 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/PLE072011605.