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 0x8b92a94c1648fd0a35a5feaa7ed2aa0209764751670879567de6c43aece82982. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff91f9cb-106c-4c83-9921-fc9180f6d591.json and https://artists.proofprofile.net/proofs/artist/ff91f9cb-106c-4c83-9921-fc9180f6d591.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 0x02c7ee3f730108eff3f313b3566db77457e9f18312e297c43828f4c027016db4. 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/GBSMU9000836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8ce4737bdc03049cfb6e64366289d1813517093cb9aa8e0f56acaa64183da5. 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/FR9Z61800095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30fd3805505ce18aa0efc10d8a8006094476ddfb3723f75e04b904bc460f9202. 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/FR9Z61800119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407d8da00cfec0c6ac8c64b10ce1db44dba706d4856671b34b05b4a4413a7b5b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR9Z61900052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d6b59c933a0176583cfb024057a7ba22436df9eaf256b10e21ad14c552f34e. 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/FR9Z61900060.
tides (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdb822be0d0f203ee7d7341984dca75dc6746d216dcf5f379153c6ccbe2d7b2. 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/FR9Z62000182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf44903cc02abb8a049c52befe4642997271c0d39a5c9f46fa2c90f2cd331af. 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/QZHN71991605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3685c43dd36fbd389f79837bff67d4bb607e0e5019c29e3f20c24b27b98b564e. 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/GBSMU6742406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86ec68e66b770412ccc5fd1a7bbea5db5e069b720f29c75df439def113be338. 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/QZDA81986633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7476b9a504d0da5272707cf57a02c475716f9769b44ffde78ce6cad30f60b55. 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/QZDA81973908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceff57cd01dc70d965c138465ccd8b77dae24c4c0d1b5f9c9dfafc659b65b7ab. 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/QZES61825925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97e2cd92ad9ebf03d70e8afd4a1bb1e9d899ce794374fbc8a7e8adb8571e1dd. 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/FR9Z61800197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e72c8c39d0c8a6fca4e6de92372f8a7aedfc805a7693a0141b0c1c99ec14bc. 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/FR9Z61800129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593abd7a563f021d635b8d5f3f64a06fe084a118f051fc79cfda0aa957819679. 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/FR9Z62100078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6615cecfa424efa2ab48ccd9b0299d33796f07e65474cd017c23a3b0b12bc4. 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/FR9Z62100094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34d0c6ca55a13f136e44445a337f13149550376851a501a767322afbd06aee9. 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/FR9Z62100082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9480ade18675197d8d035388d661d8a264186109926ef80aba09d9a6622fb6cf. 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/FR9Z62100072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6354e7ead6cb0745a0a8779e6d86b7459fa3381ae3aebb005476ec95c7b89b98. 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/FR9Z62100089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb291a5692bff81deb3f220ee6970e3149553f2ab436350b25c565cfe1674669. 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/FR9Z62100081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d43b30997dd78b607d9bf397ec7540ed83f21c35e52fc590bfbb13b834cfc7. 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/FR9Z62100095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d9523c68d5691035925858facb5dc5e2fa5f2a4a8f808ea8619559e378278f. 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/FR9Z62100096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29bf8276bbe83856174b6546c32cfd975dec6b387febda727c0700059709356a. 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/FR9Z62000162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c67d0ccf6489f86fab1d450e789e6a3bc49825655ff94b5e5fd8655a51ca61. 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/FR9Z62000169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4410f172d52e0e6320e8561f6c701f146732a2eccdfc132bc6bd29f97c95b40e. 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/FR9Z62000173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298cdd205088e0e6a27e9df7c3eaeed415fa5b4e2e89314888cf525731d674fe. 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/FR9Z62000216.