Hear'Say were a British pop group. They were created through the ITV reality TV show Popstars in February 2001, the first UK series of the international Popstars franchise. The group, who were signe
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 0x439a80c39f6e4f8bb319099a15f07eae1b9e3252dae515bc9bb48f2f4d886ca8. 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/aff8eb86-2da8-4cb7-aa26-08291c52e69e.json and https://artists.proofprofile.net/proofs/artist/aff8eb86-2da8-4cb7-aa26-08291c52e69e.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 0x5a51ef4765a431bf02c43e383c4f1bddc40ea9c4d24dfcdf736cac07db65ba56. 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/GBAKW0100361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce6fbdb7b8150fa17af6a10a7710bf0e28368d49c1b7735135284da7ce3198c. 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/GBAKW0100388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675271b656528d36d8b18747d5cec6fc3b582d8d6958edc45e5ea2573cbc4ef6. 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/GBAKW0100416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd91067ccbeb006e13ae083f094a62d23ef6fdae69be2074a787334b8b758a4. 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/GBAKW0100404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d340991937591775f8488f2cce0b165dc5adb11121253acd9230d9d5da66eaf. 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/GBAKW0100410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1388b6f53952a6a98909ba4ae46763b8fd50d7bc5f33c3bb26de5a2160b492ba. 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/GBAKW0100409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93afbc6eea66a27fa618b4c79559c095b4fe74edcfa6e591a89b8e403263fc92. 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/GBAKW0100417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb892939d2c9792358bd4aae057d3dab2d49430e7c06265d0814ed13c71901157. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GBAKW0100389.
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 0x59afea691e355665ce408ae3d5b83d577abea910433c8533000de68c30116dd1. 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/GBAKW0100402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ee7bb3b626287e0752eaeb6876d0c68881b87f44e744721cc18a7073dd8eaa. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/GBAKW0100408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb737da93a47c13976cac94c405d91855e36890364ed9d4f0da4c8b4850e745. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBAKW0100406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057cf09cbb4863a0f5770c1202e0c436ad087c6d89045cbb06b2951b1e30df40. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/GBAKW0100411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee5949c627bc248ac2db25c8f313ced53dd2463d3024c9e4c723ec768bbee91. 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/GBAKW0100046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cd3eea1e8889ccd2c66b722cd5a4ef81c21a1a15e2e9d0f64b7827e23e5a08. 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/GBAKW0100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa8e0ccc243166119b5421e657cb139c9a89d4088fbdeafbd8220198f35267d. 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/GBAKW0100063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b03be9a2c375a679c2fe2475567be9c3cb60da7932ccb13f5e5450ecf5db38. 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/GBAKW0100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f62607c7795b30c5da2f59370170ef18203d468c597111801ccbed41888c102. 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/GBAKW0100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd787d7d649cedfcec632a2a9fdb277c5d0ee766ea6924303ba9201b3c7a97df. 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/GBAKW0100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c2bb3b9a9ce51d1d5c708f2192f39aaf730e1496084048196d3e5edbb373e8. 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/GBAKW0100059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85838bf00147e66e325dc317d8374179359f7cb00805e856bc19e67a78789539. 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/GBAKW0100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcfea7e1ed4da75eacfa009cfb26afcf6e2854671ee11f6fc38f8e496636669c. 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/GBAKW0100065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43df962cc3787d01de0965b404b8fd209581ecb577543f6fa4beaf4f5d09916. 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/GBAKW0100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68b266dfe52fe5a62d11f13427f8e2a62c8312f059210b9355be70b2fe07774. 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/GBAKW0100074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3774fad494cfbe5149d0f7c5d1a309c91c1c0badd5ba23c55ed57a160327ae54. 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/GBAKW0100062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d2127e333e600316b957930cd13b8d4bb5edecbb772830d9010f997837e9af. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/GBAKW0100052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0007d8a1cbea18dc230f0fcd33825a37bba6cc7c0ef9d8f365965a228279fe15. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GBAKW0100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48289a114e4e2f1dfae246be7a8e9b90041f6cdaee08d9897949bb4d4fa2354. 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/GBAKW0100064.