Chris Williamson (born 6 May 1987), better known by his stage name Crissy Criss, is a British DJ, radio producer and presenter, who was part of the BBC Radio network BBC Radio 1Xtra. He has also worke
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 0xb9d2c0ac9f924fee3e4239f8d131a7d588a07ab984782f3dd2ac97ac6f114da6. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/abfb82db-e615-4d6c-9bb3-94820937aa32.json and https://artists.proofprofile.net/proofs/artist/abfb82db-e615-4d6c-9bb3-94820937aa32.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 0x419fbcb0ca4b5a4bc67a55e37b780c8884285eef4c9dc8cde5fc35ae1ec66122. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GB8KE2328485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0db70b2eced3506a6b157be2df5591494ef5d6e974b370b4faef293fb03245. 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/GB8KE2215113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198b186b2cf1e12b0462b7776f33add89485b37488f4e3c74fdc5365fd693e96. 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/GB8KE2215114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410ca129fa47d1fafc12cbb0c7305afef7fc739b075bfdfbb702a3ef664bcafe. 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/GB8KE1859807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67fc0253c7708865727af301d46d73adbbfb4e9bea38f840c028e8d7ced36aa. 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/GB8KE2325481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d7337405840081f58cb6f7ddbec1f3541da8b1ff7edd98d5a941f758a59896. 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/GB8KE1859823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0bb3c33c3211d1629a4dd1b95d0f22512bd1202412b85c4a2e807994fa9eae. 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/GB8KE2215109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532fed1c1c7d8c741d28d7fd7b1dc34235ca3c3269467c7fa19e8c3471233841. 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/GB8KE1859822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab28c803394b9201c61d62483596f31612dc9a618bc616e8f14253cf37ebdc2b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GB8KE2203734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419fbcb0ca4b5a4bc67a55e37b780c8884285eef4c9dc8cde5fc35ae1ec66122. 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/GB8KE2328485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0db70b2eced3506a6b157be2df5591494ef5d6e974b370b4faef293fb03245. 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/GB8KE2215113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0bb3c33c3211d1629a4dd1b95d0f22512bd1202412b85c4a2e807994fa9eae. 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/GB8KE2215109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab28c803394b9201c61d62483596f31612dc9a618bc616e8f14253cf37ebdc2b. 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/GB8KE2203734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67fc0253c7708865727af301d46d73adbbfb4e9bea38f840c028e8d7ced36aa. 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/GB8KE2325481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1e1afcfe024f3e576fae16220d7c81ae246285e8cc06cf329e65f15f311479. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GB8KE1953337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d71523b4ac308d4472101eb85ad9f973eb397cfbdcb3d9a4cdf110fc6b8b5d3. 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/GB8KE2328773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf661274235e45e63b6c86fe8930469fd6e5cb06e507239bed7e9e7c4d859e13. 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/GB8KE2327827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde151b823290b7a4fdc43230f6228abf8c903c622d2146e028dec72aa84d0274. 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/GB8KE2203743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef9b1ce60935e53db561facfedf49f986dac0e2c33c753b52eee9644fc247ab. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GB8KE2206592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ded5cd904eb9f00f4450151ad3244f5fcb8da28728b1fe364a8e31f8d0782ad. 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/GB8KE1859814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410ca129fa47d1fafc12cbb0c7305afef7fc739b075bfdfbb702a3ef664bcafe. 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/GB8KE1859807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce35d7d7d74c84ab52602f0ddf605d23a894e8f6d9b8ac902c4786bb7a64a383. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GB8KE1859810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7806816a3f5d801a6ddf298d73d861340267e7b972142d33751044e3d2c78a. 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/GB8KE1859811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf18d835c67ae1d1f56c191554ad46d28506e5972cf40e47cbe4484506148755. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GB8KE1859813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ded5cd904eb9f00f4450151ad3244f5fcb8da28728b1fe364a8e31f8d0782ad. 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/GB8KE1859814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1236f690d2f0144317211c90b39bf2e63af7fd2d225b768d89114ef983b853. 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/GB8KE1859815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4cc30198c7f7a0a36bf3e985a6e1f2dbdb7bdea8d5d899d8f460904971f3bb4. 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/GB8KE1859818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532fed1c1c7d8c741d28d7fd7b1dc34235ca3c3269467c7fa19e8c3471233841. 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/GB8KE1859822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d7337405840081f58cb6f7ddbec1f3541da8b1ff7edd98d5a941f758a59896. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/GB8KE1859823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3eaed9fe94113840a4081bed4334b27d34a3dc781bbd76402541eabf3542a6f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GB8KE2326688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5171b422e2b4d6938ae50fe5215373d0ddf73c99aa2a201ddd46210110568929. 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/GBARL2000105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0d0e7f605bd6bfb4cd9b86e831fc2620077391969d532d96ad2715609f43b5. 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/GB8KE1953536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1e1afcfe024f3e576fae16220d7c81ae246285e8cc06cf329e65f15f311479. 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/GB8KE1953337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974e4e1a9a0da5c3a4b030f4fd1badbb52c749ab12e32954ae4b5bd90cd60d82. 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/GB8KE1953340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc144b1713fc190e2b183f9202f7326c4da146abd6a433e264a3766922217f8. 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/GB8KE1857824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c766d7950fd938dbed83ae16e89e2fbae2b34570444e332a36ec9576cc7f36. 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/GB8KE1559159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20fa47da64d48ce1864a4e461c0105dbb38954796a4c8245b40be99b7cb6c5c0. 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/GB8KE1559157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2d7f8c98e5fe322add62fada8d72b940058fdcdb6e516764e8542b79845cc5. 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/GB8KE1558632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f31b96b39db18e41c4737d8f57794fab5a05228cacd40b442c60a79c10b781. 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/GB8KE1958650.