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 0x963c5b5e8156506d241324cb413eaa6a750d6bcd64660bb169b2495e37bbce76. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ccca691-f7c9-4e46-8ac1-5eaac613fddd.json and https://artists.proofprofile.net/proofs/artist/6ccca691-f7c9-4e46-8ac1-5eaac613fddd.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 0xde5426a79ecadfbce54815424c9c3f322c0dd132b8f80b0b899aeebd4a3fde55. 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/QZZ792466510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca63b49c9ff1a7f577d421242a3df20c4f260747dcd5c036baf32f152df26fb. 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/QZZ792466512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbcb924335b2995df8295a3d7bdcefec565016f82a5841937d8cabda262f0e2a. 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/QZZ792466513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23dc91f6e3818d2c2586dbe2e032ca822cb2c58ab75094c230478a6c68f3e2e6. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/QZZ792466514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f47a6ad97cbbfa1854568ee60cc885f804d644fd60e17856503673b6d71b325. 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/QZZ792466516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe806d79fdd02b7cd87fc0a960d872d5ecb76d2daa5424482654b8b0e490ee657. 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/QZZ792466517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ebde0243011f3016989d315f477240c6c7fced51795aa7cd210358d0282b48. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZZ792466511.
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 0xfcb326262711cf40c8296254321e6d481bf587fb938113a292abd44556b3534e. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZZ792466515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248da902ddc0261cb1a9fcb674255397ac30ee7805a7905805bfbe1066762c76. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/QZZ792466518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f45f247eee36a5e12399fbd10314dfff9e59f264e0784f7717012326b2aeb72. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZZ792466519.
Oh My God! We're Doing It....We're Fuckin' doing It....!!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06aa9c2215db55bf469e47a3dca7d02252e296991b9cf7798471f78d45e763a. 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/QZDA62456333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897642f92583d3101f0791c2e66e072c3b3d32b1e0e589a93e533662ced5998e. 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/QZDA62456334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122e306c2595bcefa69f10cd73553732aed71b8419ee65a8ba6c4f42c2f9ba2a. 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/QZDA62456335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8242c467cf2d9390dee69c298cd5e226ec6b3d8a939c7f9e020c9ba20368b64. 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/QZDA62456336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca3c3432815d1d82b74d74e0faa44969777c4aa9c8d9453a930715afbc5edf4. 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/QZDA62456337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfef494444efc310c94a7eaaa6a835dc5028910f7128f07f4fb1b166084baace. 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/QZDA62456338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d617d56e643ade79f20de1ab42e1b1e5dd3ccae318d920f75d633eda3733e10. 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/QZDA62456339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ebee518e257cdec86c2a38c1e64b1caa3692cab469e2ee2fc945eec86b55ad0. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZDA62456331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71041eff378dc60cbd4ddd3740a6c2ec8dc7331a42597cd0217a18acd563661f. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QZDA62456332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10c65b0ae80777bc8389c5a3da076e1ecb34b12d6e52c1bbae36e51d869bf4c. 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/QZDA62464652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f662fd4097d8a16f7bec002526444a948fd9e8e0afb850ae4f2e2a98d84797. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZDA62464653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55cf7134b9d516aaf9a2e84787898257ef69d0b5987494c3c9e261b5aa327ee. 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/QZDA62464654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63dcc38e95063b4047c26bddb88bd408d9b5a2cf47a5470691d11f9935efacaf. 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/QZDA62464655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a658da1fa60441af65b08643f07a773786c2271dd24ea643e380c1efa2184b. 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/QZDA62464656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x786424cefe825f39efc8118d3c779b45aa43b2b52dceefddbc12e05838d82f63. 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/QZDA62464661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef230257847a944355b5f8c439390bfec514a809927ef6578faeb23457c40b7. 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/QZDA62464662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493ebf4bf64251fcecea2a8c5df767c68775977e43a7f49f03334f992899db4d. 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/QZDA62464664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98443451dbac39133e2fe5b5ad057d633bf0f81a69d7b469f18e0eb036218fa. 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/QZDA62464665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74d6fffd7934f29f87ec579613a01de2861d3f4545c7b3a1d85bf9f2b1df97c. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QZDA62464651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f594f2bb562f2b8cfeccf5db4aac39e26bf2b5e89ee82f0ff57cc72c68c624. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZDA62464657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56496e0284294da02c71dae78ebf3702df1700cf689aa1138b485017229bb41. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/QZDA62464658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc62d5fbdc4c1b7d8944ada663c15863505e27eb07f5c004a1194485230ecaf1. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QZDA62464659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3d92313026466757399ef422e64dd9f4b9dc49728cec02f7553dca359e135d. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QZDA62464660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2af3ecf23014c1d85dda4e0a11757191781208acd52641a426aaa5fb598067. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZDA62464663.