thumb|right|250 px|Image showing the pressure pattern around an organized thunderstorm complex. Near the strong wake low, strong winds and a temperature spike were recorded A wake low, or wake depress
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 0x4861b29c14608619a4084030b20536e8df3ea32afcdda0f83f1f638d09e24fb9. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5598eb9-5350-4d32-9359-56eb5bcaa203.json and https://artists.proofprofile.net/proofs/artist/e5598eb9-5350-4d32-9359-56eb5bcaa203.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 0x359c919607aea41469bca28a596cc7268eddb4ad19d897b5df7748c638438a82. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZMEM2061368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae8a8b12222ec9049316289d6ee0ae55d3157310ae92d779895de7ece537b15. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZK6H2024707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f32ffb25a7e94cf2338a14caa17d39a79319001f628af0b0bcd08413bc5232d. 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/QZMEM2061369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225e481c0f5370367c8ede8f7623f96bb302e097dc6996230334d1fb4c24f245. 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/QZMEM2061370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4b8a339f8b3e1ac48e5b9565b6da9001fabc55f2b56f4335041edda5686551. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZK6M2003798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9e0603aaeb62e43c7ac48ceb9b328c353b5efe3084856e5174e4246bd2bd0d. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZMEM2061371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd594a7549b16ff367e4ce7c8d3544f462c0a4d4e11ea551051c19910ed8570. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZMEM2039915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1840c85fb319dd8bbbf4047b5b457ad28e4d3dfc5bc28dfd0478ea8e7d388ef4. 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/QZMEM2061372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e1bc8a903f614ba76cb3adba4d95fc1f31f0ac8a2a667a4edcd52618ceb117. 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/QZMEM2061373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537e76ed3241642675a26c648cb5696b2cc16dd803f5c76991659e24611dcc54. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZMEM2061374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c8926c6d1fbf8f35b9cfa9474978814fc43c3a486a1d8076354bd8405fefdb. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZMEM2061375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4106be6fd35c2b16a179d6babdba49842baa8fe48779266f8ffb7dcaa51e539b. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/QZMEM2061376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae8a8b12222ec9049316289d6ee0ae55d3157310ae92d779895de7ece537b15. 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/QZK6H2024707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4b8a339f8b3e1ac48e5b9565b6da9001fabc55f2b56f4335041edda5686551. 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/QZK6M2003798.