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 0xd55e220ed26c0d6ed1702b488e7a7b50f121f7ac2e594a12f6d6b95213b5cc2b. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/05e61e62-292c-4e2f-b445-32f83ebc0608.json and https://artists.proofprofile.net/proofs/artist/05e61e62-292c-4e2f-b445-32f83ebc0608.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 0xc120f01032af81fae1e71c318b2488f5cdb25e9967c54f8d11a14229f6dae315. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/AUFF01800063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4490f744ac10de60839df4a6c470c26d0a1820bb2648688c7e0f0d574c29fd21. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/AUDCB1701502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb24ef8652ed11fca524f166401750265de0692b41718685d1a68822db6dcb36. 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/AUNV01800272.
Total Refreshment of The Spiritual Center
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53de7a680682493ab4261ca14a8b5f0e8da36b841ed5fe4fccb041de73ce166. 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/AUFF02000138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f53c1ace1ea8482d384d59540cf1a8d46f906e9b6825351b3a0ee114c4d8b3. 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/USYAH1700311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6451a424b9001e5539e49752640ea952a0f69590536fe94b942a5988c62c05. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/AUFF01800045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a61668fe4ba8569626a295e6673ede14b6f513bbc7e7a965abc82fbf2820ad8. 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/AUFF01800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc123fc80f8a9eb0e6e7f9a44d0a779caafaf83896e4104603f19c8d499221457. 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/AUFF01800047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2fd54cb1047371d00b2d294acc79e5411c45a8fc4fd5cf139764a2fd7981b6e. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/AUFF01800048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1779cab11f4327fd4080df1bc0a4962df5d279ae3004572ad05712529088ad. 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/AUFF01800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1f87b2d840637ede7ae5fb64424ad38d4e2d5b32454a7f5543f096f41d4b14. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/AUFF01800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac7a772391431101f154c725a7302579a4d4902671532f066650fbe6f5afb46. 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/AUFF01700086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1e8c820a8b2fe7a9f1f74d8470084f247c9d19f68146ff4de1df2976b70f72. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/AUFF01700087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f987c8ce9a567b2914d3c0585372f5cb8c27ef62e9e1679ef65c9b6cfca24ad. 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/AUFF01700088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97fdf4b8823e4b21801cb50a7040121de1ee05a6dc36188c3d1063c8d791e8ea. 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/AUVWE1600233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162839aa52b3d0a59468f50a83e027e7ee924972f8509f1efe8c5054cbb8787a. 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/AUVWE1600173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4733379c0c82e6a6a8ebe86c929491398bb202ea9690460049d05074247676. 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/USA2P1822345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a88e168385b58312bb21376bf23ad1b353161bdb7d43f17cedd0da4e6eb1ee. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/USA2P1822346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f888ba763151397e5cda50ec4d10c2ddd5cb1e73e193a6c717c91adff4a0eca. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USA2P1822347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89019c71d75a40417a0af35a8a651f71018cac9f24d4bb1a9bfd3f18da5a712e. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USA2P1822348.
Weak Signal - Daedelus' Missed Connections Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8183e3f0f20317d7f48832742477bb45403f6dfc6a57df22f19c7d88052236ee. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USA2P1822349.