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 0xefe6e8a0e73417c5c434210c034f6403e534fd05683284a43f201ecf4077cb97. 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/cc5e336a-b0d8-4efd-aac9-60b91717855b.json and https://artists.proofprofile.net/proofs/artist/cc5e336a-b0d8-4efd-aac9-60b91717855b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Too Far Gone (Remixes) (feat. Anna Clendening)
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 0xde88273ec4f586c7563c8f28c99af291058f80096a4694624d87b9987df7c37b. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:06:52Z), 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/USRC11902056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc730af16dccdf8fbb298d6fa90c2894f57db3aa9530b29b3b229ff4087c195ab. 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/QZTAX2318024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e01f15955a63f2612d7901922c6eae6ca20ee3e59cd3b12067e3a24cbea291. 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/USA2P2014511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237e8e21fda76c8d98ca53d47649599961759adf6f1e2a7ad19268ab74597a8c. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZRP52366998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5cbfa6fe5e46b88317b2c269e67b41c8f57fb62d58558fc190389a1578f01d2. 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/USUG12002117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaee68b3544e5b76f3d334c7ef2cfc9f8b5edf611f68fb99e555ba5e36d2f2d2. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBCFB2000484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaee68b3544e5b76f3d334c7ef2cfc9f8b5edf611f68fb99e555ba5e36d2f2d2. 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/GBCFB2000484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3049110f6fdb42bceae2a6733f8ed2da03843dc8974dd924fd3f574f0534bcda. 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/QZNWT2361601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9960ca1ac670178c78be5b146710ab9d53888fd658654866ab77ba4e5f86246. 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/QZNWY2311931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237e8e21fda76c8d98ca53d47649599961759adf6f1e2a7ad19268ab74597a8c. 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/QZRP52366998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc730af16dccdf8fbb298d6fa90c2894f57db3aa9530b29b3b229ff4087c195ab. 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/QZTAX2318024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e07da824982683b3ca4ca87cb323a77ab7d48186d22de0d39cec6c394127de. 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/QZTB22337043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ec954030a2832c738b29aa4d4e64c4cd48e827fe86c2805dfc11caa0a5f8e8. 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/QZTBB2302330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37728d15493da323e528908f381863af2e66755d1501e445d488c93a6c839b6. 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/QZTBB2302331.
it's all happening (feat. Daniel Allan & Evalyn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cdac8f9bf21cb7f02881257ac1514bee6c1b4e2a0c5d3d723c6cd20edc656cd. 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/QZWH32400564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa029dc6a99add37f28e1fe59405204a58b0080cf9ce11a7d15e715b0b2c13d8c. 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/USA2P2006010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a0d87037b335d0ff48712319297bd563c44a439fa8a5c7e44c8e92eec57b42. 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/UK6KW1900043.