Rare Bird were an English progressive rock band, formed in 1969. They released five studio albums between 1969 and 1974. In the UK, the single "Sympathy" reached number 27 in February 1970, selling an
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 0xf25d55cebb997647d97105a4fb0ec0949177d2fad9a54294cbc924920a839532. 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/07c82163-2ea7-4e9d-b9c3-927d2b6658d8.json and https://artists.proofprofile.net/proofs/artist/07c82163-2ea7-4e9d-b9c3-927d2b6658d8.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 0xc5e5dc595b66f3fd561b245c40b74523c12565780b0bcc8a0da4b4d60e670a42. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/DESK91894601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4bf5b9fee39502efd1e44941f28440ba7ae4e98a6e545ed724f502fb1140db0. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DESK91894605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb761b13ff992ca413aaf664a28993acd4a619d680eb0c2826e58d3f5aa23bda6. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/DESK91894606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3cc5dda3d704058798874acb8dcf3606925668a6f7cd4a00c0a26a107813288. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:48:29Z), 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/DESK91894610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8161ae793f9a84c88c93e74242425e30cffca719c73b81961b9230708f906d02. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:23:08Z), 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/DESK91695301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eac650f9de74cdcc849e845c1e45f4f8dbac65349105493a6474dd02632c6e8. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/DESK91695302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6fb076104e2b331f7e2a081386acbbbd156b51e609c0064e643bcf4c3c5f6c. 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/DESK91695305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9dd02e35852086c308d0df6ce2ad98fd811bfc9496ea2a25643cf6fc141c0f. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/GBAAA6900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726258a5c0211e91cb8829be677aeca5353b7226bb3a74fa6621c34ee228c959. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/GBAAA7000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f23e649389dd6439954f7366dba423656ed99d2ade8c359779770424315abfd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DESK91894701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b6e358ea33b28e3a93cf628fde8805a8c6ebd00afe8177d0793fe699cbbf0e. 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/DESK91894702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4041fd8a1eee55dc3123b9f0c68c55d30d096f2233c5753d81e9299723be97f1. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/DESK91894714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a67812aa270d13e1bce53a8ce25aa6dabe85bebab8f7fc661f7a9db00d879fb. 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/DESK91894907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696debdf87062dc31211b6c435f2e45a727474fbf371ecab8a74929781916991. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/DESK91894805.
Sympathy (Remastered 2022) (Rerecording)