When Rivers Meet (or WRM) is an English blues / rock band formed in 2016 in Essex, England, by husband-and-wife duo Grace and Aaron Bond. In May 2021 they won four UK Blues Awards, for: Emerging Blue
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 0x107ff42639a0787e5996b52c5e3bc2be65bb1d937b832d1aa03df05f1bb4a5a7. 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/541351d1-bffb-4b01-93d3-c06f3dd0c0be.json and https://artists.proofprofile.net/proofs/artist/541351d1-bffb-4b01-93d3-c06f3dd0c0be.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 0x55d3595a1f8ec9238a9073c2f244907178333a41cc0469784cdfdfed6f22b3f8. 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/UKJ8U1900049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d6f6d5b09a8386ef91859fd1183bf886af1df857a9f8402251f22f54a5eec2. 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/UKJ8U1900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ec14a88f3134f29f51fde03b4288eff030e09d093842214bba79c7dc6157b6. 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/UKJ8U1900051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d47b9a304adc37cf20aaae962851352c5355e21cc7e1a1cc4b02b71b0d1cc8a. 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/UKJ8U1900052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dbda0161a24e1a2db7e7470510f407fd05565b0a5fb32aa715dd1c95963f852. 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/UKJ8U1900053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf990a980ca24492e5384720a7cbe54a327913019f14097ea898f54ad25c9d7b5. 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/UKJ8U1900054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26117c60d252cc7a07f0637cea5bed32e94e2e3d5c59c3a6013a221d0fe9c5b1. 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/UKJ8U1900055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa756d757b88b391bb9cf7d1f4e40e3e1fa9d071cee4a846cb53ae5c48ef09ec9. 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/UKJ8U1900056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5750266cd6f11f97cb4910e49cd848dd58377a948310e1879d38dc9406a8a038. 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/UKJ8U1900057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301b883893b23d91d4732bd6f57c9e216514f55bf4490d47439ab357d533b030. 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/UKJ8U1900058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb90f59929993be7a619d9c685b1f7e72bcf8965200e9b72d46ef171592eae20c. 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/UKJ8U1900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a4e29a8e55f6c0e9330f46dd950b7d945d02a00ba4cbf5aef6ab42fdcfc8ad. 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/UKJ8U1900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce698a2aaf768246437c6097ac326b4ed16c423c1789ed5f53edb509ba360930. 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/UKJ8U1900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb035b388bdc84ac52547ac012bb57cb8edbc141c095ebeda8c2a5734859194e2. 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/UKJ8U1900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e48400a0c044e2f04e52e1bbad0de2946c5de241da2caca4fa96e79487c9775. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/UKJ8U1900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff14c20fd785f40e4cd7664cbe6e84b9f322df5b6794c89cd27cc8ee1faad7c. 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/UKJ8U1900027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c35a9f3f223a67971704c02d4ad61fbd7d6113fd6f3f0b59b76b1a7a3cf700f. 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/UKJ8U1900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9bf258f6f83109f9c924357504b7d2a3512bb6c53b76ee2a69f61a9227075a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/UKJ8U1900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812dfc448757f69ddba3b19c6026da2782c1db72acd4418a66cd4438640235a2. 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/UKJ8U1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9097bd14289f55e06a176b5f6fe01bf2e3536ef4bd326922ed25c97bb3d38fde. 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/UKJ8U1900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffcbf72090a5cc8403b0ad1443bc38b0b9847c1faeba2f7db50aa50e3ef30af5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:51:38Z), 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/UKJ8U1900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac0fa63ed06832efe7b669b85b296e89ce75bd1722c8f8d0b0ea6e1c8526152. 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/UKJ8U1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3add2b3c3fad34c15014ec5fda924aea643445b3290d270dda491465251ad71. 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/UKJ8U1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846ade3aae8f4c81e52793ba8bd6438153dac56ff87a8da75f6fdf4254913e15. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/UKJ8U1900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c398813678b4dfb0699f6da84eaf4824072ddcfdb6e2809ed9799c7d12ea9d. 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/UKJ8U1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3e115c2812ee059264c18c8a6b601336df2ffecae1c2c1315f3d00c1f97bcc. 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/UKJ8U1900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7307a9bb5cb2730a45adea3bee6ff6f63aec6fd73313c845571fe822ea6026. 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/UKJ8U1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5cef95e0081daae8d4c2d80e4f04b9e765da23606986a6a2ced6e0af465007. 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/UKJ8U1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7650a3a38c6594f28ab7d7c3d410b9e87f32835daae5799edb326538252c96. 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/UKJ8U1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec2f4e3ba6748730b4ecfcafa70fe1028c7a4eb12adf064ab04ba6b0c41618d. 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/UKJ8U1900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe178a11e574a7b6ed757a4c0bf735214c35e9c8d9c82b73a620fe31f95f8e4df. 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/UKJ8U1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c4599b7502888515e5a80fed56495a10556055e28fbf946d48664b913b4eee. 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/UKJ8U1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed1d7952c7e72ae39bb2ff39f66db5d74ffbf7e7865a32079b99d12113df99f. 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/UKJ8U1900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33216170bc626d543a47a805b7ef4b8c9c9eaec162018e68f41539f8a1be0269. 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/UKJ8U1900005.