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 0x62fd767069587ec478e73111bb5189e8241b7a4c351edd2ee9d6d5d17a903515. 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/cacf2b7c-ee3a-4915-b390-acafa4ec356a.json and https://artists.proofprofile.net/proofs/artist/cacf2b7c-ee3a-4915-b390-acafa4ec356a.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 0x83eaf16c3e2f7015e2cac3d5e052220eddc3927ad3da6a7caefcf6f48054538e. 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/QZHNB2045120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46b65c13b76865164379a3408426baceba374a65619d623eda6b8b13a55af98. 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/ITB002000569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991a84c29fde4dd8fdf1667be305586d6272f69e853be5b3f5ee624214c03f66. 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/QZK6K2068951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ecbd0f5893aedf984a6b82d8379a1a309808ae0a4f530fc8d4932699957621. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZK6K2068952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0284dbe6cdf60efa421fd79c44b71ba32ebc452068c129bd9856ce437153e866. 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/QZK6K2068953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce77c96712012a4600a0994b6b51071e43ed39a5681145bd00b45f321f7fe1d. 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/QZK6K2038963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c181be2f588bd2a91418be62ded3ca1c0bccc02351f895722a954137e1d3b79. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZHNC2079072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4e9ff15441504a9d37e93a6d2262ace2a090cc03bdffcd730e263ff1841d79. 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/QZES62068728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868cb8f6549cb67633942605ee4da932f836d4a631d5a0df811b3d622ab1e476. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZFYY1957534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09713582859a5104758b04a30b79113d90bb162190cf7a538fc3fbcbe387ce4. 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/QZFYW1973842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb284257468554004a32e397f2f461be09a8bb51fe83428744d6fde6b4280dfb4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SE6XX2338405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36dcf5b419e76c74f9e6ff574ae09c539294e703a8a5521e2541f26325186d83. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/SE6SA2270408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7c089cc8aabd177417bf94cdca4adbc21b713fcae72a6d4f657a28226edfc7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SE5BU2253406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367e3e9388d308765da205eecdec80617089cd4744032a72918e0882d572bbe3. 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/SE62M2181125.
i'm falling through space and it's hard to breathe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb189d14cd1e30a780aad2f55d432fad0febf6ec1ce083857866a4b2509ab28ba. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/SE6TI2191611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a25ba5ec635575abd1f4aca0c97e455eaea3483a2040c66ea21e8501f63184. 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/GX3HH2100201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2595a859d3b6b12e51c4cc0b348225b9de6549f94a07639ab9d00de1e022303d. 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/GBSMU9605628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6839bb954256eca8c7d415722d5333eb5337b9e4cc090888931df10cc41a351. 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/GBSMU9460598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc5418d16ac17e95b4658777225eb7b2483cd4aeae900aee8f259f6b40ab52d. 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/QZNWQ2068771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8174fd03df5c6e0b5d63e3444bd025d1e4d48c2dc68f73aef7c68bfe23f90e45. 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/QZK6F2080444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b0144f0a2f47499063dd8a68e09d84533521d9d93a237f78276eb51339ef1f. 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/TCAFD2007973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce77c96712012a4600a0994b6b51071e43ed39a5681145bd00b45f321f7fe1d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZK6K2038963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb58c1d3e3f09024528043fd99f6a322b5138791895dfa6396e53d91a8ffe44a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:50:00Z), 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/QZES82073511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5cea43cb0db8a32d03226595db38972316a7db5ebc9d10a4538a2e0bbde5b5. 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/QZES92034089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3e9a5b31ce61297ae2ed6fd84a92aad2c5fbf8f9e097f08813565bf2e12c9e. 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/QZES82098068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4e9ff15441504a9d37e93a6d2262ace2a090cc03bdffcd730e263ff1841d79. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-21T23:07:51Z), 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/QZES62068728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46b65c13b76865164379a3408426baceba374a65619d623eda6b8b13a55af98. 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/ITB002000569.