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 0xe2e648e55ef77076bde9f9b57d008ebeaac40b8fda3e48664f78b8e74027ad0e. 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/07bee55a-1f4c-4d96-a829-d9c36eb833fa.json and https://artists.proofprofile.net/proofs/artist/07bee55a-1f4c-4d96-a829-d9c36eb833fa.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 0x3bbf37dddf0e9fa79555301473aa2b61b6a8d15785e7768de482a1bf18dac435. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZES72517676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c846b2d398c969e4d4b7d83ac947ec7506dfbda4e1011ff4738718fc4b9cbf. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/QZES82589120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d182053f8f57422bfaadca7ce5565329046440d0b982cb85e4bb4901d30400. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZES82587055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55668bc881fde05cadd0730e1663042ea85285030d254a1d334664e21eb753fe. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZES82574309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e6a4fb0d14cd2b2503d369ca567563527b49344ffb6fc280c9fdd59044c7c7. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/QZES82589254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b74e6cc7b76b55f6edf8226fa6a944a560dacade047f57365a0938f691a2b9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZES82591251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e69749997ecec55050ed117a2184664483dd961a69334b6957ecd08830bb7f1. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/QZES82591257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f3804a9f88e687337304a6d660597f4f5ccd4641f5336fa5ddbc43b1315bcf. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T05:21:06Z), 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/QZES92564633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdff270c13e84acf3eadf2073f2b27bb43abf9ee11f4eee33d87d84cf58f573a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZES92565538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ddbf33cdd87d8c355dfd2d0c76d8424caddea20edb4f376f4d568315a57a53b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZES92565539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823f653d5773f056e977bd1d0f998b6d3689cf95d0bf601d271f70f99b5e6288. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QZHN52560074.
Five Steps To Losing Control And Filling The Void
I'll Set the Table but I Might Burn the Chairs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2f3995a3f1320fdaf3ed04bf496ccb80f49eb91ca1822c6040096b0b187e3b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZZ772531829.