Christopher James Harley, known by the stage name Chris Rainbow (18 November 1946 – 22 February 2015), was a Scottish pop rock singer and musician, known for his solo work and his significant contribu
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 0x851bf0aca1124c916ecd196dce185140b999c0b3afb73dc0a9b878cebd9acea6. 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/ccc30e95-7068-4c18-b23b-c9befa11a310.json and https://artists.proofprofile.net/proofs/artist/ccc30e95-7068-4c18-b23b-c9befa11a310.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 0x709f7273567aabdf4a20b13f73c0733fb44e9b8c9102a030c7242857874ef476. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:28:16Z), 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/GBAYE1704799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0cdeed0c9a5ac30d0ce211022ce94bc6b3b6b6644111f525f0f110722e3bb1. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/GBAYE1704801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58b4873bd9ce8fe9e95a8d37bdea317adda2e0067686b2002892b0696bdd5c0. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/GBAYE1704803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381203fb761b145147dde9b564c9e1d7650c1ea287ee7450da765cbca2534ac2. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GBAYE1704804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503e1bb1145cacc53041bfe968b58ebb9b2a76490aa0f57a366aa478dbf475ce. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/GBAYE1704805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbc9b26b70dd0bfbd09833be7bea946f4e17578e41cd70973c00908f6b6476c. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/GBAYE1704806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bd7956d0a727922a051f1911ed6b82b78c4353ea060c1b92781ca40d872748. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBGXD1000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d62cbb20ca72c01d9fb870620984b7cece081ee543f72a2a56e96b96839a66. 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/GBGXD1000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d09efdad3c6fe2a387ea8009def7420ae3956b54646e59c372747989282947. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/GBGXD1000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758097464f497cf7f1424dca57a90e761f1e9a5637ded49192c6b8c008e1caf1. 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/GBGXD1000060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe036b24053e98dd198670d272eed3bcc15d0cd9d75e4ce59002a82b9802f446a. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/GBGXD1000061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006394f8340dcffa39dab2b2554275da320c85bad5c9f450bcdf4b8fd730e259. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/GBGXD1000062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe936803ba65d5562598ebe97d0880c6d7ca45589c29020dc2895669d90785122. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/GBGXD1000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25be74d55dc3d2ca72b04caf5370309833286cb00b3876b415ed13b241314c1f. Chain 2 (Bitcoin): anchored in block 958963 (2026-07-21T04:02:02Z), 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/GBGXD1000064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d59efceb45ea81539cbafdbbde02a63092ac95a41778572e294cdfbfa225119. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/GBGXD1000065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c45ca20e661eb17ce0a13aa58edee72b8ca80b2d9e6dde2e172cb2bd7b42d46. 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/GBGXD1000066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa750e18931109e92204e406187c0372194076bf0d2f676a96a1c839c48f7815a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBGXD1000067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203189bf2418491a116131ea3cb943da6735ccc8c9f02c014513e48c3123318b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBGXD1000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68fcca861ddd2ff2384a26cfc0e86db07917d48fbb832a2b2159d6869838408. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:49:09Z), 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/GBGXD1000068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a60a5ddca4af33c9e5c0892c9222196b2d9f3a558d37748054d332c6ca2c49. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBGXD1000051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd815a7acc52506d9e7c08517bc908daa7be46fdb1c5d98bcdae981f8763a20. Chain 2 (Bitcoin): anchored in block 958678 (2026-07-19T05:59:57Z), 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/GBGXD1000069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae9122062b7cc35d919edae724f255b8a731f22a5ba00fbb72bbb5e4c39f9e5. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:32:15Z), 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/GBGXD1000052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5340da4de0484693ac306675014dc8845f5e011bb80585a113ad9e7d29f85f2b. 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/GBGXD1000053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8340230f83766b4f177e173aeff6c21ee03e5f8ad302b1850753aeeaa22ff4cd. 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/GBGXD1000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5928787fb2ede0fdd7ac6fcbdbb54273b4867e66d7bdf267f90603757be79337. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/GBGXD1000072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0a7a043ab2788fe1be3f7f2635ba50779a5c6dcd4374ca75b655cb17579730. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBGXD1000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e60ba4d72fd395d4bf082ddf25930d30a38a74f6474e9bb5bda604fb3b1760. 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/GBGXD1000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf572a4b1ec31c4e92d9a906b2eb0ee0b93bc5a63fa6d580a0e95a5084515aed0. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/GBGXD1000077.