thumb|After a Gale – Wreckers by James Hamilton thumb|Gale warning flag A gale is a strong wind; the word is typically used as a descriptor in nautical contexts. The U.S. National Weather Service def
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 0x1a4c24b8ff00a8eedaae256e3e05c6870db1c2cfcb33aea61c1c92a9dfe7547e. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a62953d2-0f1d-442a-bc6f-e607494a6023.json and https://artists.proofprofile.net/proofs/artist/a62953d2-0f1d-442a-bc6f-e607494a6023.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 0xe876e50b8488715220385cde4048c9edb2698ae149ca8c47230cb494b04ca16b. 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/QZHN42270732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc35b884b3abfc6ca0c7b2b67528a64eabc4703a022df173ea70449f1a72eee. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/ITZRF2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765cb6590ba217ed61da19cd3880d54463f8df12ccb184fb299f985e612f104e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ITZRF2300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc97ae97358da8de16d97c1359721bc30cec603fb8310f7573edf22c73a5eea. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ITK192400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18b57a3ed885e1f406f56c65642bd59e213520170e392f22fa14961bbe2a5cf. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/ITK192400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29056676c383dd764308209e1bb95702827600b8394a6a2b9057a5a3248f00c. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:10:56Z), 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/ITK192400069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffce4ab19bea186062ecd6a4cba1a336f33161483058a288c82adc393429ca85. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ITK192400267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5dd888a8f2ff63d4dd21d894386fcb0412f9da0fcde744bd97cd242b88309f. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/ITK192500120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e91b62f2c66b46ac19e14f5c65ae274bbc9689e88bb676aa4c82427c45557da. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/ITK192500121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0cea3eb13f60f775bfb896601dca4f20cdd10ccdadf509c3a82adea2c59c0f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/ITK192500122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8169125dc774127feef12854cc7eade7a55446c6d9789489e23ce9d4bcc3e68d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:24:16Z), 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/ITK192500123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94861c4203b32e4ab159a3ddd03b7b4228bd5b5037f5cf70a90742b0fe6678b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:26:53Z), 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/ITK192500125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203f58469dd563e10a2821f5fc8928fb36997129efefb4d4dba0b17a710606a0. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/ITK192500126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ee88a264a797a83b7a74bfe6ee10b58661514d1bc2e7d8ffc3c37dafaeb4f4. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:35:59Z), 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/ITK192500128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77313514e5d7a459786fe6cd6c633e797dad7a1166ba2ad4fe4550fbfeb1ef16. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/ITK192500129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d7c3f7f25e67993a65ab518a3a5b30b8fc38f358366b26615f9cdf48f9d7e2. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ITK192500106.