Guy Antony Chambers (born 12 January 1963) is an English songwriter, musician and record producer. He has collaborated with Robbie Williams, Tina Turner, Kylie Minogue, Will Young, Scissor Sisters, Bu
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 0xdd35114767b11afc6945dd7a42b282f6f5ad394c010304cd1511ec3bad8e5002. 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/0978d694-8905-4801-9e38-897802c67d23.json and https://artists.proofprofile.net/proofs/artist/0978d694-8905-4801-9e38-897802c67d23.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 0xbbbfc4b052df7947ba18a1179bdfe659eacd58201cd5791dfbd2b4a26d7da587. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GB5KW1900342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a0de7e313ade4d975f073ef436921a50d2c0b560b0807ed6a25ceffff22dec. 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/GB5KW1900343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c201384c4c3289b7cc0fe316621f32d999df2355b9cb0ee2f6a66a6f34ebed2. 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/GB5KW1900344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4eadc8c62734fc64d038876fe926184cf29819f4ef3c17172024e1751a09872. 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/GB5KW1900345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bc286d5c6dbfa27014d551f413bea010704bb4471fd4b4be2950c20e05575d. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GB5KW1900346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28d927d89a1e0716f40dc7ac35681e24b2fc4f2b2b906154cc7bc54421e1168. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/GB5KW1900347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47322109df91933ace87df6913066beae92a952c0c4eda8f668df91ffe5c053. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GB5KW1900348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b4e1d55120253dce9979a3cd0717544ff5aac05eaa525f2732f7bde0c46e53. 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/GB5KW1900349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7cb1beab4a1a8a420cd8a8335cacbeebefeaf6228296bd9fbdc774d32baed5d. 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/GB5KW1900350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b92ab96ea5d98a4e0eff56b264310e3b2c2893761e81aed8a734aae0da60de. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/GB5KW1900351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8031c45e8cba4804f872172b2e7909a0136f4512eea01bd595ecfd820289811. 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/GB5KW1900352.
The Night Before Christmas in Wonderland (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d366c40ff33a7888a3a80a18a9427c6c6a19650ae15ac58c4b5bd461be3db93. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZZ8B2499890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bd3c890ed2f279df4135e582fec2caa23bb3fec23ea380b6df30e6750bdb16. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/QZZEB2417004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0fe6907f388fc7101832c3ae6e035a1bb35bb73fbc33b98bd46243b8109b60. 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/QZZEB2410321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3263ca9f9eed4c467fd2cd6630769a2c582fe5b7b82437d0c55e81028cc8f1b1. 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/QZZEB2411092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c2f488df0ba52b4089f02495622ef4c3e09446a503053a95eadc830a387ed4. 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/QZZEB2417013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60936288eb957b861f8ea58d6e5bbd812e6107ee131caee759b0358941f4bcf1. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/QZZEB2417015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72cf2f0ec7d3e0ecb7b31eeeeaa533ec67756ec76aff0a2e14b8a01c529ecb25. 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/QZZEB2417025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac20422b72b908cfb0297cf85c2ada474ae3711554c3a5bab2e0a8087e16ce00. 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/QZZEB2417028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ec80f43acf04fbc5f9f454a80cac1467e5f127cc23d500ceed8daaccd517ef. 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/QZZEB2417031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f4e12ab12d7f77d7fed357b7ae1f36fc40300d88a3c2504f0b61133998db5b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBUM70603303.
Reimagined for Ballet Class, Vol. 1: Songs from the 90s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1f577a65809f5201fe09c99c58f09f5aa25f3ee2d06850b04c5625ca3e5835. 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/GBKPL1975778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30f2860b380f7e6dabe5123bb16734393bd67280908cfa0ecdfd50a968b60de. 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/GBKPL1975798.