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 0x8bd7002908570b4c1725e65a9fa66a135adc8abc1a28bc706dc428f27b7f6f50. 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/a79e123a-105c-4833-b068-59b93241200d.json and https://artists.proofprofile.net/proofs/artist/a79e123a-105c-4833-b068-59b93241200d.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 0x206384b064a0d6b4999c455c24cc1fce4a4962cb9f9e2508ee78f3f893362ffe. 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/ZAKN82600200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf87b13ec00f076ea2bdc941a0dbfc99d3fb154e34bdda0da4df9eb1b624a553. 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/ZAKN82400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf446964af8f3d79e3c17dc65f65355a9f5d37061542ea8a4a2d9a5b1ea563a42. 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/ZA34K2402206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6bb6f7cd8ab102c824f653d2b77a92bde6b8bf8f9d76f611e052db7634ffc5. 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/ZA34K2402207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87091de3a6815c1acf2ac79dea87c33e6ed0f72d49823cf9f952070d7ba96abf. 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/ZA34K2402208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38cea554d8ac1e0f5b19451c4821a0f897bf23a04e560da9f7c162e619ca9950. 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/ZA34K2402131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef06336071efe7231c9017cd2c5495c5c773cac407de6d4e214c4fb6fddad34. 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/ZA34K2402209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9ead155a1e38bf690e6f7878b8e1225c27cbe36a82f6685542bfa1b5c8b8b8. 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/QZTAT2418666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e264a89da18ef628c9c1b1e59f94b46567f9247d588461fbd975d78e9b8e6a. 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/ZA34K2401924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58a98208535ba066363dca47d7ba8f12ed9a9335c437c5ffc24920091369753. 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/ZA34K2502416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b4977337432b5b41b3bf6e97f2681d59e7ea37ed084d218c774bd01710fca2. 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/ZA34K2502242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9ead155a1e38bf690e6f7878b8e1225c27cbe36a82f6685542bfa1b5c8b8b8. 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/QZTAT2418666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf51f636f24453141e63dde9754f27028f087e8a1e2f587f4bc7d6198021ca2. 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/ZA34K2401856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4e94000a88065aca5a58d9546b9acd170ff62b31174737dac4231bf6ea39b5. 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/ZA34K2301450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f4ab2c526c48089d51a01f14424d01bf33176b700bcf075f6f416f582002c9. 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/ZA34K2301347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ddedde78fb52bdb46a341642f9d8ca1a88787364333ec15a99c6d8514c9acf0. 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/ZA34K2301211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0119bf6705730065e4ce1664002aeeaa62fbadc6a2bb09402713b7f0e6f81f5. 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/ZA34K2201058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8798f2c410c149f88d6c5106247ec027e5910b6edb22537a468abea71fce83. 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/ZA34K2200848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9a5738cd9df571f8f1f8b420fa6158830752ba1035c12548317cea3d05c450. 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/ZA34K2200849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7fd450173670a952327c6dacc53b2020f76170c309c466b414b460d93aa89d3. 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/ZA34K2200850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f401a4ad7656819537fde28c06f6263f88439efc0bf01412dfd5d11d063324. 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/ZA34K2200851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197b0584e85d4701c2292833fd7093d44438cca56b597a23b82ae35f0da25b31. 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/ZA34K2200852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8798f2c410c149f88d6c5106247ec027e5910b6edb22537a468abea71fce83. 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/ZA34K2200848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a37959d16612cc6adae9fcc2f5484acf3baab2e5e3f389a41a944c74759ab1e. 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/ZAA012400365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d85d6214d7917d867f3989164ae80ac1f826836a83b12eb40b0f4579ff69a3. 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/ZAA012400366.
Trustfall Into Your Beautiful Things Medley - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50a0f38628bd210e7f2458cd7909f88e9f3bf55ab4dd2a600d9803b6928278c. 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/ZAA012400367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4be0d95d4fc38529144f2b41e6760808be58d170ea35f094d71a654a8e474d2. 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/ZAA012400368.
All The Small Punkrock Things Medley - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99fc72c08dcd676e672428d68cf7612c426bc5fc59678257f9ec1a9932f681dc. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/ZAA012400369.
Texas Hold'em, Fast Cars And Boots Medley - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b672fa813e06c25baf8da48785ae876d3c978cb480d6aea1f1ed36aa0121bb4. 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/ZAA012400370.
Dankie Vir Die Ou Kalahari Medley - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc951e90e93bcc127e19659dd169a146e11569984de129514188e69747000d594. 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/ZAA012400371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81484c96029acd79514632cbeff1b4d62e13d237f68cb7476584c0c4297d561. 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/ZAA012400372.
What's Up With Shivers And Midnight Specials Medley - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8feaa97cdc751b66b70e8762bf619ba0fa8076cd4eca39224e308041bc6a22. 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/ZAA012400373.
American Pies And Pretty Woman Medley - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb802c03eea5a58b496ca0e9786f540ef5897cd0adcb7267a5c46fc50367ef39e. 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/ZAA012400374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e7ab6b9d626bb07f2b136a342e6f776deb96c1015ffcc58886672d12d6293f. 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/ZAA012400375.
Soen Soos Wat Jy Dans In Afrikaans Medley - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5da22cfb6fbd98d16b82350ae6429b8ac395cb61c237c4abb5c41508872f2e. 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/ZAA012400376.
Simply The Best Wrecking Balls And Chandeliers Medley - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8488ba32fa8190a0cba50abf033fda59d51cbe72652046b8f4712d4011931f0. 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/ZAA012400377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb37feffc17bf544c033fa297ddd669ee34db4a1ac1023c4f0c0c85f0f2bbf95. 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/ZAA012400378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a188798b07fcc0b019c32f6fbf14a37a99f0b42066c22e38f2bef5cb5519e3. 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/ZA34K2201050.