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 0xf68d3d826528dfd57b56385bfac4c12930c809bcc0c5a58ae1d6a073b0591d9c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca2be288-c08b-411d-b701-0a3d7b9e73ec.json and https://artists.proofprofile.net/proofs/artist/ca2be288-c08b-411d-b701-0a3d7b9e73ec.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 0xf4e24823e524376a21c0c7712cf759c36447742bdc26a87a050f58d6b5634410. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USA2P1634262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc038d2f9073c5e39939367e2c0e72725f11f8d80a1595d3eb92aa0a4f24a1fb5. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/USQY51758183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb80ae812f5a6d80a0e54a80a82a4c8e0c72f6042bca897598420a5f4225214. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QM24S1704738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922772237f4eb826937266cf2205a92f2eff66a84e7e8ff010f895eaeb85e8a3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FR9W11817611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922772237f4eb826937266cf2205a92f2eff66a84e7e8ff010f895eaeb85e8a3. 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/FR9W11817611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9a7543bcdb63bb44e502989b4e9ce05cb398f168e03f4018dc2604621840b8. 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/CAK472102903.
Bend The Rules - Mndsgn Remix Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66dc0caa45191823ac9bf7ce29d35f8d5dbba4d53151bc48a964fd68040628c8. 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/CAK472102906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2566784524e71af2e306754c2366d73d6349ef2afb0b7fdcaca9593fae82e915. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:06:54Z), 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/CAN112100801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081c703ef8bd40301df4b659e7a8e590e9d82138482e9e80a3edfce736c7df74. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CAN112200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2439839fd96a688e01ad8149945fdce761a0a76195ac6b31da9f99c17e3fc944. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/CAN112200107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3042d81e8c0feee5dadbdd964cc9d5fded0f40fd71cff9eb16b9486db15b946f. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/CAN112200243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2566784524e71af2e306754c2366d73d6349ef2afb0b7fdcaca9593fae82e915. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/CAN112100801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9e3f997a42cd51b49894882971adc89ad3c11595e44a71a0045ca2002f13ab. 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/CAN112200244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869b6c696b0ae45f1c7004b9304b92f896ccc63c7bbfa678e7aa6f847dec5aa2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CAN112100948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081c703ef8bd40301df4b659e7a8e590e9d82138482e9e80a3edfce736c7df74. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/CAN112200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66eeca7d4422172f970ee3017fcb1def7160500798567161f552e248a8ad900f. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/CAN112200247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1fd97d95d6f200ea272110c6097f94df8ccd44c3460b62f746f938a2825cf2. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZZ8A2394650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883e292f967ef4f0abd8b9f419ca2fa90c4fcd54eafb22b3810b60174d745214. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZZ8A2394644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cdf25e47ff6185d462f6ce43deb3290e24206c8762dce38cb2cd2f446cd8790. 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/QZZ8A2394646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d94b422d44a7fb3e085ba27f3e91332158acbb766edcfafe2851a99ca04aa4d. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZZ8A2394647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1481db37f158dcc456a3a740628db2645f73b3676d9dfccaacca4e9a4b77e76e. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:28:02Z), 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/QZZ8A2394649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0a63d7c5fb28e9d4c58bbd3875abd42fc12d2f27a65ec6763d866f628c1c27. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZZ8A2394651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf45e98a01f5da89bb7f2a58956046d2ac2817630a8a2dfa18cef799e8a63d86. 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/QZZ8A2394653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4a640adc36dcba4e6153b7483aae40a194fef42b3b5c586ea2df1a56feb96c. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZZ8A2394654.