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 0xdc91f153e47e065143322a7ae86e4cae6112c02247b64091a8e702ccc1f17e08. 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/d67af11a-5ba6-4db4-b315-b5e1cacb8be9.json and https://artists.proofprofile.net/proofs/artist/d67af11a-5ba6-4db4-b315-b5e1cacb8be9.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 0x3013b70c0c0ea1dcc7c203ae3bd9936841d452f617715f681951976d525105f2. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/BEN581900457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aafef3450668a944cd93b19d007509b36d1b86e58774a0c836d27ee91bea021. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:16:33Z), 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/CA5KR2002571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6992ad30428ecdde1f37fbe1216257ebf3d72bba9959d19cfe711ade4b3894. 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/CA5KR2053912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb92e4e164a76d3f498cf6f00fe34c8f885c74e788eeb7dfe387f888c15ccdd. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/CA5KR2196164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce650bf7b13cdd54b3530227ecaddf6c0815a8e8d159ed987a21399d9094841. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/CA5KR2196165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2531a104fed9a2cbe77f8f6aa5213891a1026061528ccee7f5fa1133fedecdbf. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/CA5KR2216100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2560f4e75480e1cec813d2fe00b7235b46b9d0371665dbd63e5673dfc568df6b. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:45:39Z), 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/CA5KR2331407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d1aeb88bda4d585b7e2af3db5f37356d3b8bf5738761f0522d148c5ff93f7e. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/CA5KR2331408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6790326eb513f1c872271b2b95fd5527ea1618b55cf71cf7a6454ef4f140ae39. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/CA5KR2331411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42fd23d356cf10cd9bdddf69660f776a725c7c88e674da3b0137617f9c13681. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:03:48Z), 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/CA5KR2395208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f98e57a42a50aa1c165646e16f660c5143f935fab6fb6e082e412f8c5d6a85. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/CA5KR2459874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2491529ad938739d78d58cf2efac578a664e36117f6543c13a2df4b20b03ab9d. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:41:07Z), 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/CA5KR2459878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3661d756a2ef6cbc63a8600e68ad72a94c89b4e3130850b2132f75ec41e1cf7b. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:37:42Z), 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/GB8KE2425747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5fa2272e258524a360af260ab039e51696a31d00f9c290752c154ace59f0b5. 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/CA5KR2099380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5fa2272e258524a360af260ab039e51696a31d00f9c290752c154ace59f0b5. 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/CA5KR2099380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd424ede00d89b2cedae2c7ccf1d59b0cb489a2dc226b45d99666caafbc6ada07. 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/CA5KR2245800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd424ede00d89b2cedae2c7ccf1d59b0cb489a2dc226b45d99666caafbc6ada07. 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/CA5KR2245800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea60756a7c83f4ca676cb962760757a1f7756599ca1be08b1595571a4dfd0a56. 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/CA5KR2236079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6525edf882218a2b602c9a501e3712b7e9a1ddb5d9167f44677278093d4007e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CA5KR2205043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b4597920591ba99ca7aa844b2142652091598d2adf1c3eaa50dfae8e9e7468. 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/CA5KR1838570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a03a1d3f1b10ff93b2b65d9fd1b950bcb62cc62975eaad27570214f02295e0b. 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/CA5KR2437465.
The Second Biggest Remix Competition Of All Time
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a61c427dff7a200fe4289e93ef4adb9e23a3c1e607a78cc32baeddd39b58e6c. 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/CA5KR0033292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554d81e1bfddef420e03dfc4b85f2c202159760a4e2b7f667d47a5563429317b. 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/CA5KR2452245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c2e20179a8c247f78b2a8bd794573ebb044b03c9520ffbeba2d0bf909ea1fe. 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/CA5KR2452246.