Sacred Mother Tongue was a four-piece British heavy metal band from Northampton initially formed in 2004. The line up consisted of Darrin South (vocals), Andy James (guitar), Josh Gurner (bass guitar)
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 0xdfec2a3aeb7503b0f24a95c7a518d0f200c8f09252afcd219fb1c5eccc29336c. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/59202b42-601b-43fc-a120-4ba5a224e63a.json and https://artists.proofprofile.net/proofs/artist/59202b42-601b-43fc-a120-4ba5a224e63a.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 0x5120afd00f6670960dc9f35e85b8bec79e087ad85b52e9c9f92d23ca93d0a606. 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/GBT9G1100178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87afa1328453becec5b4021874c127bd7f0f79cae27209900701a498bbdc02c7. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBT9G1100126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405e641b789af540e9ac5574b92b75edb7af4173a582d3dcac01f3aa9a98bceb. 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/GBT9G1100181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8dee35d748aaa9214fa7c32d7db03e9f03c96a6343ceb44fa8fa1ffdaae3395. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBT9G1100124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846c91b04f6083af224b86fb18382ce9ab7e7e09293ec9013ed267fbbdc13aee. 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/GBT9G1100184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8bd86d14a9f5bdc4a8bf5d1987f74180ac6e1f79bb91cbb36f9d5c4dbbbac5d. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBT9G1100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d305dcefa07991c6f31f3d3fde7b466dcdfbf7e9d60eb0e10388fa8aa4e1b74. 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/GBT9G1100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbdfd795b92c425174c4ce84c5a0f6af99f20ba8e80b99cd29ac8d3fbf9ac579. 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/GBT9G1100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1543b6bece15c73f7efc44026f8a99551731415715084383b20975d56842b87. 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/GBT9G1100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc36fd7fec461b373f34ae00eb4635c80ed670ee11becd554360d42361c2006. 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/GBT9G1100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ae15d0bb06932402691d90f98047329b745009e4d2134cd6dcdb614e63afb2. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBT9G1100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb023c47eaffe48e95e71fa997a9536c279634fdf6be3deffa2cd8daad0a5a5ef. 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/GBT9G1100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93139f778b40bfa9ffdf4de9ec5305c2dc24cff4e3f56769c04438e6b291239a. 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/GBT9G1100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b72b113ea08b216d27cb39909eae99cb6f253b1b824ad62ec2f0f23e8917d0e. 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/GBT9G1100212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8dee35d748aaa9214fa7c32d7db03e9f03c96a6343ceb44fa8fa1ffdaae3395. 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/GBT9G1100124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87afa1328453becec5b4021874c127bd7f0f79cae27209900701a498bbdc02c7. 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/GBT9G1100126.