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 0xf6ee982522398f2536677068c30824c23fff8e4b7eae22dec3217298cfafbda6. 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/3a8efb7d-c0ca-4bd3-8869-d01abf74f6d4.json and https://artists.proofprofile.net/proofs/artist/3a8efb7d-c0ca-4bd3-8869-d01abf74f6d4.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 0x792c5ae814d9b4277ba7aa6b0ba390615fb2e8bf3e2e55c4f578abd7e0cb9906. 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/USDY41833151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7088f3e2c2c2370b2a7561465aab850381aed8ec001df7a9271d13af0038ba. 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/TCAEC1905225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5042127d522bc59a335f871b3b15d47a8288646df028656ada3d13e8857c9ae2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAEL1921420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bcd5d17f90c6c1fb67dee405226a5932f82e0a621f48ab0c0daf9bfe56c7940. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/TCAEP2029537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861f0123f7a93d408914af220746607244129f027930004572d4c3a7af3523cd. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZMEP2034965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b88d4807be04e7bc5e0cc0b763459974e0ed4e52584d8575275514a538732eb. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZHNC2199990.
Welcome To Crossroads Music (introduction)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11520c01ce4e37b69caf90098ac29631be64b660c86979a07104c4937ca7bb67. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZMER2139365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218d1961338bde6cdc3de6e73602f24a90185d04d0459824f5d9ffcdd07bf6a1. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QMGVJ2200276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218d1961338bde6cdc3de6e73602f24a90185d04d0459824f5d9ffcdd07bf6a1. 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/QMGVJ2200276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434e8088f71abcbd761fe4b301fbaec70c711eaa560ea98939d730b79dea9843. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/QMGVJ2200275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ba8ef0765d2724e23dfe15356eb9dcf08d44823fe65e402f2d4d1b8d123471. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QMGVJ2200278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4e6cac52f9a0f354e1b58d16645533a6d8764358734930e05f72173c850941. 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/QMGVJ2200284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b9a0146e30db44d6c80ff48a0c4f0d65683514801e8ce8e7ccf48a6b154ab2. 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/QMGVJ2200282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4eacda6d87aca8114dea03ce5e64d560e264ffec455b00f037d791b49e3321. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QMGVJ2200283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf23a127463fa26497a15c52424b76ec73b998bd41197e7984f65f4e44856fbe. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QMGVJ2200313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead49af209b06c9de56a491a7ceeb143825f6c2f12f068399a4f292ed93b1a76. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMGVJ2200312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73620e4a206c81aa4423dae6e9c5e85b57d01095bc1061597ee994b9c451d312. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZES72429741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28bfedb347c063b643a5087b27470c3eb56770099d3ea6fe88b6f242a8a51c08. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZHN82441883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1a9ebadbc5a6a0edbcf376f9d425ef7fda9b236cd6afc37ac64c52fb50286c. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZHN82441884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e16a1c2d169cb282749d0bbdf73d3c9ea387f5f758f45af98a8599e4585e37. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZTB62488789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828d126defe78ce33ffda161269a6c3e03e0be2de6f577f81a6f9eb66a83b962. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/QZWFE2443132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa953d4cc5672c631131dfa7dd489486693badc76b290111edaf33f071a7f0d. 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/QZWFJ2477715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca0e28be991ada69b8849393636cd40ec42ecfbfae625eec37d2f4646f60ca2. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZWFN2449961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ae2f4607918c3a25ab264ae341b2f2a6684dc3bd571cad17b42173e34caa9f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZWFL2491657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ac68be96826eb8b2f3f350da584fc5dad915b3edc149f739d1d946e38e976e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZWFN2485707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828d126defe78ce33ffda161269a6c3e03e0be2de6f577f81a6f9eb66a83b962. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZWFE2443132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa953d4cc5672c631131dfa7dd489486693badc76b290111edaf33f071a7f0d. 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/QZWFJ2477715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835d6a0d355cfeff423fb9137cfd3747cc3036876bcf589c5465d7de32483ddd. 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/QZES82561466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe392beff59c6cdb9ec4c09fe84c3ae3f849bf8bbcf44231e80655fe7782acf85. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/QZES82561494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e4ddb45a5faf04f8685ebf7ac5dd57314a1d56b93403dd3a75d5013f0de8d4. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZMEQ2525126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf104a904f4237d8982fc8aea783b4697bb7c3d9ddfe0b08d3af39670474b7a6a. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZTAZ2562553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b6edc71cff139e5346c78e6072743a354000d1e468bcef211fed50172ce300. 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/QZNWX2579805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f594db7f89089da9985925e5c80399728565de46891cffbcae846ba5c6ff2f. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZZ7N2562897.
That's Who My God Is (Live from Student Camp)