thumb|upright=1.3|Stand easy in the stoker's mess of the corvette , 1943 The mess (also called a mess deck aboard ships and commonly mess hall) is a designated area where military personnel socialize,
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 0x697c6b3b77b4c87298a487eb48f44a0cc1d68a677e5b1f1a26f18ce9a6cfcc4e. 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/bc02d609-72c3-4fde-a16d-b0238a507093.json and https://artists.proofprofile.net/proofs/artist/bc02d609-72c3-4fde-a16d-b0238a507093.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 0xeb3179f9413cf5f92b197594e43edabcbc39c4ba7ca6f71243113e09f1915ff1. 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/CZUM72400621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89cba540d3375fb25168e2b16474bb718cc4f25416a0fb8fc258bbe5fb5d206. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SKA012200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb06048a1fb83ecf9e1f54f4f3eb7067901be8165e20e3abba0e6517b440bea0. 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/SKA012200067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3864bf268e6fd38b6f24ed9422b45aba483944721974915e00cd2223bde7e36e. 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/SKA012200068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59373c6ec5760756e5f0517907d6d2c43be3483913272069d0a3172dd6f6cc0f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SKA012200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da8e441ed88a5690e8e0b2a5bd89fce2ec1a7e152cad9bba0c6a201b21270ff. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SKA012200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1663fbd6b017af0e330a8dde607bcd23fca91823080af762a3a5f7f52db41f. 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/SKA012200071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffcaacc80ef4384e394e98037088afa3530a86a1496190b85aa4f256270a8b2d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SKA012200072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089dd6a4399e222363f470175b60d2370037692623613b9c3264d8e6ab1a0f09. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SKA012200073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5dded5565104274401275fcb0873474af9ad5a1122230e8eab92e71e7ee442f. 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/SKA012200074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e7a972ed4ae99535d86541f6cc1415b297d1efd56408e31a0a9df12c2a04f9. 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/SKA012100221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9131cfc54201ee35c9f22c0988f19a5aa346bbf3e184ed72961a6e4147675e99. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/SKA012100222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ed7d43e8212b0ce3bcd53bc7fd6e4bb81be820ff3387db4ca6f5bc4a596bbe. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SKA012100223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14cbb75716a8254c678929ac6ed7172db1774fd991925e3d7141020f97cb54a2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/SKA012100225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f51e1532e3d84d9d7f0c3a8207d17e80e296773b51c4f461fd76018119ae1d. 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/SKA012100226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe551ada38af55b31ddf3997c928817238be465521e2773e14a334b2c9856a29b. 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/SKA012100228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364b0c044a06ee1db4a71a561d98ece1d675562e1a3d8e568c34e26f9b366047. 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/SKA012100229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d0fcadc85556309941f037f13a9f20bd914659f6e8863d8c10b422940a4da0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/SKA012100230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53129c6aaac56d7687cb712d11622ad71feb842354543b380d5a57fb8169483. 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/SKA012100231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f17953de002b9351d8de6d8bb53205eb492834894b06264c71b430058ac05e3. 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/SKA012100234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a3bbcf8d95870909161e38dd4f2e2366c255d0a57d095ce9f23d0a7669530b. 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/SKA012100235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c2b035f8012df8047820f69b1ea587d012318c5000e13bd49f3a81092866d9. 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/SKA012100236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf47e559b8acd89fe3f7e7c839d87b54d74b39a192fd50ad7ffc65c4084e797. 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/QZFZ42129952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbfe005b85f5d1679f7057f6b773f506f6de6efc276ac0b777337a82806ad3fa. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CZA232401166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d2795bc3b7a3a4952996b9f13dd324dd151dc5564600d8b3e109c79e7abd01. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CZA232401167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48ef41777dddb4165120fb6cd5b569525e5e7690978f57eecaf5922bb65239a. 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/CZA232401168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98eaeeb3edc2e048609f2812e341571b51a1e3190c30cdbc3a66639611c69f4d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CZA232401169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7dcb93993fc8b267fbd9bc251bc60b46c42381921b119a00166fe68918bd0c7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CZA232301449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e77fbc663b8c4f3abf7f20494a540323bf1f12c3602618e3cb6624401530ec. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CZA232400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea8b30bf82c850d6c047f012d1b6dbdc8413728067b644a067e45235548d95ac. 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/CZA232400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb979c76a5c6fbc6f40e2812ac0d513dc3863046dc6984bdea32dfac7b17c2bcc. 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/CZA232400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb9c1dc6ef35716a9774d5ef16a1ba878b515f6646b325959c6c9dfd2473ddb. 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/CZA232400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f885528b5eb922401999a196628166dce29c0b3f8315f8a81d2abb3c9a3760. 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/CZA232300645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99a9484567d63e6506560851717cdbc39bf610a86032654e941653ec74b2390. 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/CZA232300646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8f6d231d395177e744a1349e66fd162f0ef277a84a31302657dfe648914fda. 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/CZA232300647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4b1e2d2046842693fac64e8b8acd65953d43360195f059f8cf262a4ed9026c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CZA232300648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03026181d3f41614f68c30510124e1031a44a3f48f09bf5ef4023467ab43fa78. 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/CZA232300649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890a8405c27237bf48b7167659be72e7d089a0e7afd023a1d4bc024f9e65b274. 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/CZA232300650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89611c82397e5694143b4b83912e13729eb52bae3c4721c544ae1391d965e17a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZHN62251978.