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 0x859a5e2ab6202c2752371b1c00b52e670efb73d9ab78c74b7376fbd81df65601. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab2a8ab8-e7df-4721-8492-c0e20fc10660.json and https://artists.proofprofile.net/proofs/artist/ab2a8ab8-e7df-4721-8492-c0e20fc10660.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 0xa43db9d50e1dcbc00b650b2f620379364f26f37305330d2fa1e53b2fda9a4470. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US83Z2347945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3638be1c998ffeb8cb90b4cd759ad2274fcb6670f15ba6c0bf7964044568614. 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/US83Z2342947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8f3c88ea8ae9bcbc32537cc63ecae04a541caf57395f99aacf2060e7294f3d. 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/US83Z2343815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9073008539e795bd522c14adf5a7ffcae5af7711c1b7ec9d36f7f31a74f5aa40. 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/US83Z2318102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294d890ef47e0aa13ec1db3a16a4732104070fd61c17bdced85c121673a5cfd6. 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/US83Z2317505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14368647a1d84057244e51a3b2b51737aaddcb64b59ecba92b18dc3577c4cc56. 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/US83Z2147103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308378273fe243e73facbb21b145ab1f1f40dfb0e5805cb56e1f8482d2e90f08. 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/US83Z2147105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291d673fa64953d30894e4e829fbc1728dba033fa01e99c7552833b81fa1f725. 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/US83Z2147108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56027e1d528f88a773b1fa65ce877d1cd24a841c794b93d8643b7071787e459. 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/US83Z2147113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb45072ccf48a2b16827408fe5a710ad90261c859d6c4232f25e535c8be0aa8. 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/US83Z2475206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b601228105440523a61f0811c3a99bc638a0849a8bc71455b2c9d732e45b8c6. 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/US83Z2345132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8438da1457c945933a4d45c0f1974e24f624791229763625c8950db991c5608. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US83Z2308818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1b1426d4b9a4ed91bc086cb59033b37268fe15e7ea9ef71b6529f876ae1fe3. 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/US83Z2308817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f53e214e1b94c36b70052990e148f00f5e5f36f13d1339f5a687e915b6b6ab. 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/US83Z2308819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc8cab12535f0d689fac4603e0972705bf0e605346ed8e5546e7e2e4a4f22de. 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/US83Z2236818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14cfbd9537ba2ebdf5d9c8cb99116903d1d71cb2a636f0974d0e86a970810c4a. 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/US83Z2236819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb522e3506a449f293af527f892e95ed4f35fd0bf9632a0c97f1f2563ddcfb97f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US83Z2233082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b691cc5e7039d6ce26b8ef8e8f4d88d09e11f584dc0e416f057ed1bb6cece79. 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/US83Z2201202.
More Edges Than a Marshmallow - Munkler Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48b4f1d34b1146f8b51e594684c54f96b7413dd31dc322bed84a0421af2ffbd. 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/US83Z2201203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333f806a591dba362c943f03dfab6ae2a67d1c222568bed460d0510870e95697. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US83Z2131986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd25c27dac796662bc52d1cc77a8eb37884985a7cec94e48bf776e726a61594. 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/US83Z2131988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976152058d20f43099ed4f581bd363a624b72a737269e324d01479d97728d03a. 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/US83Z2121600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde76dea190d504a9603e6be11c04beccb45111fce1b45ad61d3e7f0936032c8d. 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/US83Z2121601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415368794dabd36e8bbab1babbbd9bcd4636c58e8e918c332e9a66425ad064cf. 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/US83Z2110857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a49b34a327e882681bd9e702d34b31825aed7dfe2e4620a006c9ed119f4d072. 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/US83Z2034941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3352065f2da43868be6c831940f42d2b91ee3ec28286d7fe1e6779468e10acce. 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/US83Z1806009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e146b29423a106d48d9bb82705140247def56f1eef5b7f09fc98cfd8dde72ec. 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/GBKQU2270253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb4f0df9c37c65349f3869b602681a5b9f3312032bf2452ba28ebba2c1aebc6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBKQU2270255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc8cab12535f0d689fac4603e0972705bf0e605346ed8e5546e7e2e4a4f22de. 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/US83Z2236818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49cb3164f15f642f43e5643616e401db8f55c5d318a98547632e9a689e342658. 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/US83Z2233476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c8e928a0319ba2c0fb12ef1d16397be0e433d503a7a85180e215046fffdff0. 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/US83Z2345128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479a0d30d75f66f7a1f05d152dfb42343e7057c5fa7c94e296e3c0faf5a13609. 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/US83Z2108845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12ac927f61091fbdad3facc028a64980bd91b64cde592b9bb5261194014ee4c5. 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/US83Z2127179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6503a931068f02edfe151315a2f8e839389f8f54574166db541917efe377f46. 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/US83Z2122205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca75dac4cf56357dc68dbff6f8eb627eeb3022854f668e3b9087cfba59002b1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US83Z2327591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333f806a591dba362c943f03dfab6ae2a67d1c222568bed460d0510870e95697. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US83Z2131986.