William Russell (born 23 August 1947) is an English dramatist, lyricist and composer. His best known works are Educating Rita, Shirley Valentine, Blood Brothers and Our Day Out. Early life Russell wa
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 0xb4b8987f3774c2e80bcc4fc7ae77786bd09924c1999436e5ea649f860f582e74. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5df4a8e-ec9b-486e-ae37-47e5bad7c1cc.json and https://artists.proofprofile.net/proofs/artist/b5df4a8e-ec9b-486e-ae37-47e5bad7c1cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Blood Brothers (1988 London Cast Recording)
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 0x2655f35f28df0dc723074cbd1b61ff00eddf0929f72af059d8ea9045e7f30fff. 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/GBBKB8821701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407765f2f2fcb946a5f01ea7b7acd23a8fe0c3dda1b3202be06d0331f03c415d. 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/GBBKB8821702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8427d483e5453360b89c6c4872ff3ddded5b1981fafb19f9f371cb9189b478d0. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/GBBKB8821703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1690b11c57f723306eaa165c49010e7f93f4e3c6754c9a24c18d27e89a19c1f9. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/GBBKB8821704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc68f8a26d43bf954a60be6c2a3ee029d416ec51d0e253faf8933e372d2e66ee. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/GBBKB8821705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82541ca6f23eb23b8d17eec5078a88b3ac2fb7edfa9807fa75fe373e4993886d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBBKB8821706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5687e289a46c3e9e526b225de2237fcd3f613d1bcdd7e5e67518b4b55ab3547. 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/GBBKB8821707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb784b8f60a013da3eabfbdce8c11a2e4f19de349c2c14f15b37418156961559a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBBKB8821708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dddde38233213e150313d075bf105a8537c6bb92704bdaee595b1b3ef5b273f. 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/GBBKB8821709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd15d3c067a1c4250d7fff1c5124459f2a1ceb2a936901dd5513106f511f0ab. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/GBBKB8821710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ffe56ea08e3508a76b65a567c10b5d782dc4b390b443a83f5fe7b6a56a5f14. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/GBBKB8821711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f3f8b48ff2ee4f50a89716f4764810e022f3bcfc47b72e28d0c2f8ca9e10ed. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/GBBKB8821713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197e086df78e9492eb4a12fc168729fcaa2e3ccbc26ef186815a721cc7f1798b. 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/GBBKB8821715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f52aa5e0ccec15aab83ed047512b58586a4378a1e378a40ea63813101296572. 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/GBBKB8821716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459e8a0093528abeb4cf92e70ca082e2aea11189aeaa2e77454e9088bff9bdff. 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/GBBKB8821717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10f60e64703b28d097a4d40b0e2f9190e9a3c9025185d890b43e7b111a11b98. 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/GBBKB8821718.
Blood Brothers (International Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa31afb6b2ef5cdfbb6987e0c83fd743f3a92a3cba7bc63f18ff40faa0a4240. 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/GBBKB9525001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9465e9f7bb392280acd2cc27c20afa68cccfd70ea6c6ee9bfcfe53c85168921. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/GBBKB9525002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fae58843f039720fc4cf02014ed94f0b0509ccdb81fd938ef8b05d16458eb80. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/GBBKB9525003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd222b123a118f07e6a69beaf2611b0dd815500ab700bc907a1d2952190b086. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBBKB9525004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0edb461008ddde886c61c63b5c8e35c6ffbd2b5917f78bc62b4f7f79ec9bb649. 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/GBBKB9525005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140c453af71cf03ea1589897aab7973f6582c8369c600cca641ef8ac2bf07fe3. 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/GBBKB9525006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f4094d4ea48aa02cce7ea070102143d08189bf4748254ac27c178fe2af935c. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/GBBKB9525007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ad4603f4a387bf58b6446523f964cd38f6ff566136482c79b1e3d6b39a0629. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/GBBKB9525008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e25de89947baae6726124698696c3e079dc087ec3e305820ee34ec49992689. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/GBBKB9525009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9669bba08bec35bf3e0ccebf8abd0680642e4b0a3f6490611eb1c2a1a782588. 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/GBBKB9525010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e683829e6e5fb5de6d160223084e35afa7e86d58b0bbc95843a09716b5dfa94. 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/GBBKB9525011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9191ee408ab358542c95fe5d7adb4d1d171fd48807796dcc6e29ee404dadcb6c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBBKB9525012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe8fed91b89d67152b6c3b40036e6ae871d9d49f2046ebef7acb2541d4786ed. 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/GBBKB9525013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8f8ce7ebd5ba08e7bde8e7dfc7f6455fc49e8eab8cbf01572a3819a38a7e07. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/GBBKB9525014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d92da4385bdac9ec0e579aede1f1ce156d67671afb9f942623170c71c869f5. 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/GBBKB9525015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45a47423a73ae4d351daa701b8c9b2d75306bca7e116a545ee81d77b0f315c2. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBBKB9525016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42027a2d7c476af2db4daa2644a0bed89e24e95c39be90f9fbfae294a93c5513. 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/GBBKB9525017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c50764fcac97f2099ae8bb21c78ea683d11938ca3f735daafdcef016d6b8d5. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBBKB9525018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e93515cca72abb2347c86c4e43ca058c13fa484bd9c118619d175b1b00861d. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/GBBKB9525019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d96b3fca50204e34b608c9104be385dd2f7f18b3d7a397a08d3755cdf5e613. 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/GBBKB9525020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x650318fd5d6aeacef6c488356b37f18c2a6eca2181355b221be857bd4e563820. 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/GBBKB9525021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c01bb79f302f306a28edeaf1b0a1ec94a7a06e6cd60fbcc7c7c203c2bd26f1. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/GBBKB9525022.
Blood Brothers (1995 London Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e36bf721fdbc7b6e76a4710b82d5fb6eea1be3e0e7d069269a88c797ac68b4. 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/GBBKB9524921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05ace0fb7ba66af415e0d026316bbd393238e8794e23e281dcd4237dc09bed2. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/GBHPD1500298.