So Solid Crew are a British UK garage and hip hop collective originating from Battersea, London, which achieved wide success in the early 2000s. The group consisted of many members, the most notable b
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 0x7b69f4671c2b82c6075ec90698a3f098113af80ae42326a2e67905086efc33e0. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/26762b24-5349-4c0d-9d3f-0f906dd27a5a.json and https://artists.proofprofile.net/proofs/artist/26762b24-5349-4c0d-9d3f-0f906dd27a5a.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 0xfbaf3180575ab1e7f64639e2b1585b47b5061f2ddd731a7c6dc6ade9a9d11738. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:54:36Z), 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/GBBPF0100612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33041815d1b9ee8d2027d76c92f946266ad0adaf63b6a709435f37a8d740f31d. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/GBBPF0100613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe2992b41d062fc0c19b8614c3fd5f2a8e95c1836b365e31c20a8b498ca79ef. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:22:36Z), 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/GBBPF0100605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49eb8991803f5bffdfcd752947e10f488fb81363ae39c99681e36c150381fe45. 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/GBBPF0100607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1ce9cd6822720dd87b5826c39d70a6cf246f0f7a99a892e70d6c04907a1057. 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/GBBPF0100610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0498fd9c99f9a67668907e652fc5c97467e6ef8a03ef6f7a066a6c563eb49936. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBBPF0100604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f07f84dccef4bf87d88859f151bcdceeb8c3d7d15796d874a970625d4f287b3. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBBPF0100602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8262ed526a683d9560167681c60d53ebf42d1ed84f680ad6161d96e5b78fc27. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GBBPF0100601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af7773d786c16df9f84267d70f43a088e2430bb77a4ee78b1a50b191a633e8a. 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/GBBPF0100611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1f6e28be6a2d27b92eb5ad3e65c350094c164fd8ff8e72d95d9f6aa2d848a9. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBBPF0100606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5016090c246e4a4813bbe5c580456a62bc658b4cdddc3d2329cca37e5fb02a37. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:28:32Z), 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/GBBPF0301140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92350bceb12994ce4e40e3d3fb2f33a878c38ba52f8be00b03f968f344dbfbd. 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/GBBPF0200870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ede16494a6b1bf8974ebd01d23b913910ad5eeb37c4ac372fe624671f7c2b0d. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/GBBPF0200873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902a10bdc879f8b4ffd8f66dca0585246fd0333a9c475d48dd59b31544e000bf. 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/USMVX0800499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3e3b74ec9b000251f2745799e5bcdc00487e6246129d3ddf224a2ed0f2d640. 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/USMVX0800503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d8f3ade3097a8a955588e77f9600c892d6d3e85e72ac92323680081818efdd. 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/USMVX0800505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf535f9ed4b08ef5ba1ec866135bf708729964fbcbbf7e6c4243093ef708227b6. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/USMVX0800495.
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 0xfccbd6ed8e3fc5b3ae812b3f8c39285893a06f7f4c76e7842b4335d162263b30. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/USMVX0800496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1fb4c050be8bda1d70aee42b49332647841377801edacb2a871cdee94bfd83. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USMVX0800497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5653ee4e97e3f332cdb79ac64112b02ac5f117c90125dd42768875db114d4b23. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USMVX0800498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b810fa9450c12d2588b651d16525bc03857e1f7526b70a9ddf2f6f85459b830. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/USMVX0800502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8fc0d1f9b6b075e8aaa2c22948d89fcf91a322691aaee83694346ac488c7b64. 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/GBAHS0104446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2edc49b15d34f4f231bc40dc05a9d3fcadd1a05936637243a99b75548f8e068. 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/GBEBM0100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d240e0db32b18dc17549d12431abfbe1492d653c25357fdb3f0984caf625675. 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/GBKQU1572473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5175f1e3e5a1158aef7d89ef4b943ac349440942d6cff6271b4d887a52a64d0c. 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/GBKQU1572479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca63ee6a21c7e61ddf5d91381d1c3e5d5711af6c200f86914d04715aabc3bc69. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/GBEBM0100011.