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 0x79a367c8c6bf79e042c2bfde7dde36926bbc2bc1f3b74590af4e8007b808c6a0. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5faa50cb-6bd6-4ad3-9778-87e367a2b05d.json and https://artists.proofprofile.net/proofs/artist/5faa50cb-6bd6-4ad3-9778-87e367a2b05d.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 0xbcd8c677da2be092be85b8147ac6cf8d374124d1e63fb41e22c935949ccf1ff7. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:00:49Z), 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/QZAPG1868982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1996e41638da46f6978a2afc748d1e5891b00eb74d1fe815c559228fba761c1. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:22:04Z), 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/QZARB1894392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314375d62f189341e2fff1eead6c1471cae0b282ec78f73bea1acfd556ac0e07. 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/QZARB1894393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d63fb08ca7f20cf190b490b5aea9d2aaec605a41276b3a07617e905f960c1e. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZARB1894394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a6cc13de359c523756161a311ca38996c25abbe42b6d8f8c3a2b68e64f1d39. 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/QZARB1894395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e07ad2d7cd32a6a977d7e49ad971a66a81626d140266d4a49968dc69043366f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZARB1894396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd527904eec6100a84b7d9c50e064c61392f17a78192620e872e51826b77be5ea. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZBRF1847956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1edfa4bcb8ab64328091352f78bb21f811c006f31cd69a0cc6e0ac3e4a5d3959. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZBRF1847957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b101e4084a073f54666be396d74733138936954c459a5a33c2150bb2c979985. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:07:29Z), 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/QZBRF1847958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4979a8ca07e8856810397c076ae89d3d628713ecfefed8e3afde4f1dc67a5fac. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:36:44Z), 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/QZBRF1847959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3f4ea8bdab4387d9a974075982f6c0a3459703bcb92146c1cc1b52b71fc54a. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZBRF1847960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf771ede11a410524cdcb633a52ba13c8358b76ffe41f0cda29b212ea42668465. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US3DF1817856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ee28daf4bd2f182b0c0f1df97156c329f0210e908f1fd4c27857a537920d1e. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:48:15Z), 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/USANG1913950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a779e5f82a19c51690b7e48ab473b2b2b52eda1057b0ac8e842ca482091c6b. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/USANG1900053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1fdecf3965ed949c211148ef2bad099857747ed23f38dfb8f5fa272c7d5dcd. 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/USANG2023077.
Makeshift Raft (Inspired by ‘The Outlaw Ocean’ a book by Ian Urbina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52bb689b17f40f731093fa4613724a3a0c09cb43258ed86f9e34b765e2abfc0. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/USANG2189165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e344c24167e9d73ca6424bff995092d1bd17754db9d7d30fd8167504a27341d. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/QM3DF2178028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6faa401a05856418cdbee7d19f8c7ba46ced5c304d14c468b756bf70ddc8cb4. 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/US3DF2230350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0fe4eae076caab1683dc4d89d3003fc56ac04d2fb739868588894e5ddc3e7b. 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/USANG2208274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0fe4eae076caab1683dc4d89d3003fc56ac04d2fb739868588894e5ddc3e7b. 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/USANG2208274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754c7e68462ad2ae9012285728b22f9305d3c06e6ef73b08e7f7d5dcf26ddbc2. 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/QM3DF2141823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f17d6186aace9e74b919ee1014993e4c0a2bd38b0124802cb819556f942625. 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/US3DF2086371.