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 0x8951daacca0b75b4ad0dcf94c34e3c9a306066d935cab7f21ab75e899f680b8f. 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/dd714a29-6da4-4114-bbbe-19e446b21ddb.json and https://artists.proofprofile.net/proofs/artist/dd714a29-6da4-4114-bbbe-19e446b21ddb.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 0xc6f09df79e551d54b557aaa4fc968b702cbfc547184f2115974d027b7aeb811b. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:07:25Z), 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/USCGH2115722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28827e9bf59ecabd9985932f67c260aeb9c6426b429ac081bcfc5839567953f5. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USCGH2115726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c81e4ec7918dad3b01721596faef51ebd5f431b39705351786f15216cd7659. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZGLS2216354.
Corridos a Mi Estilo Vol. 2 En Vivo, Campestre Costa Rica ,Sinaloa 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa348db5c840cf3303f346b5a732738a0664ab93a5eced0e99b1fa2323edc47ed. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZNJW2286567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81dfd2e3415aa5de6e439f626aec8f117c3063680834f54e0778c8c8c14a999f. 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/QZTVM2277760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b70ae6b4befd95b53a268733692da74f157b971be45d238882070a56998ffec. 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/US7VG2334412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf33e25f55cb907efbb1212eb68849c3267b4b2893861d12130f9723a359cb7a. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/US7VG2334413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b8a5eff2ea117fdc4d87f856a98db396bec64728bd680285dc8b68156e86ee. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/US7VG2334414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6e878d5cb93c7830a1bcec6cd39e8b55a2b0ccf6d99fa2891ec38d62aa49fa. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZMZ92332218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b06edfa1bc5b20ed9da395f6e30e88778f6810036a49f987256d7bfe6cadda. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T01:00:06Z), 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/QZNJV2364202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf747efc8f8c4e00180f69591ee9fb557fd467a95164483966de8d109cfb39e63. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/QZNJZ2348598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ffb5eb01f052bcdc960df5fd918c857598ef8b9746103161868ee46ab7dac9a. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZWV32386587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542d33b36445904fce38fd3236e072637896a0649e206f250269a955be47fa18. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZZ8B2368782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913b456734c8bba3f75f995b710d53068835fdf5ca9954da5faa8b103a5fbc96. 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/QZZ8B2368787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb990d770d47fcd56715c6742fdcb1ac99be7fe036300f05fd9a3a5ad04409da. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:03:02Z), 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/QZZ8B2368796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa577da684af4d965404b376f4eebda55549bdddadc52fb61dc01827c94f7afcf. 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/QZ5FN2416610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb085373b0ec5c217db02980c4164c9c0b620802d416754a49402be51aaaa2d33. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZTV32486406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a51a7c7feb5350463bd97dbe4948584e78d33febf7f651b74989958f7d08f7. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZYCF2400212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a8c678bd8e28ea02ee25222619cee470d08b7a38b6007b1e2309eb9ea5eae2. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QZZ8A2420980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73493b6565f9ab02bb04b0a3850753871df706001fc8b12d4fc77a458c4572c3. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZZ8A2465042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4dcbaf08bbe4895708eac44087fa6d5ea95764aa220b4606a5bc6016c50899. 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/QZZEB2405297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018abc18a07cd4785f8c970bae632c11cdbbc5fbf87a2739da71f0d26436827f. 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/US7VG2564819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa6fb3a0b48a2ed57a1bee5499ac24dd70af0b357e819dac405d9d8453aac89. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/QZNJV2544818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cdbd6b311d22e17567d063b192d093f48c39bdf03f518bb3bf4f351d173f0b1. 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/QZNJW2576283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392f8376361eaa5038e6c98059134ffee2053cbe2ac21c5ba7519ef60e20ac91. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZTPX2556228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aedc8b42990132a24672a9e1d937f5b4a426362ff057dc433e55561322b61fa. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:06:38Z), 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/QZTVM2501189.