thumb|The Seven Works of Mercy, by Frans II Francken, 1605. Mercy (, ; from Middle English, from Anglo-French , from Medieval Latin , "price paid, wages", from Latin , "merchandise") is benevolence
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 0x3303dd5765aa512b5f56afc5bccc288e6839e56e948a7d02ec5ecd3a9588de38. 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/f1f9bcd3-d89f-4326-adf6-52953975d354.json and https://artists.proofprofile.net/proofs/artist/f1f9bcd3-d89f-4326-adf6-52953975d354.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 0xdeb813a71dcab5bae555450f5e002e128d4d1d61e44ab94df59ff3a8e926ee58. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GB96Z1102267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216714f414548c0ea91f131d34136cba3e62e34f74bf8ec393d4ddab72056734. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/GB96Z1102268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6309534e34b11c129517d18cb0d15aa54c948fcb23a978d25d3b2a7d4d8828. 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/GB96Z1102270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9087d2a3ffe9b2aefaa5c0198a303bd9bcd2c0deb8619a784ec4bf995b3ddf7d. 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/GB96Z1100835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373ced62a03778e7151ae3f8eb05fe5f2938fcb87f518f32287f62801e7a4af8. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GB96Z1100839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7832b14ed6e02ad05315daf909c4d75bdeb614caec079dd02e52bcd1226a50c7. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/GB96Z1100840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4336563ba55010e66863198e02548cd54920ca827088ceee4fa38e0898fa635a. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/GB96Z1100841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31d44fc3ad0844e69cdc65d4bd437a7c6c48dcdf73dc84726aa008caa5ed52f. 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/GB96Z1100842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc8d681a7366a1b98b646ffd208dfc8045b981da310adf8d8e92772d80ac63c. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/GB96Z1100843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e9f986e5a23b1263926ee0ee8e89b3379e8d076abb8f400c54eead0b226e7e. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/GB96Z1100808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b6931884f5f2bae30ab76991a43379fafd934c53e0a4eb89014e543b7cc5ad7. 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/GB96Z1100810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571530bc00b8762a6dfaddac1ba0cf1a39b095feff4499c5c8f77a556a63446c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GB96Z1100812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec89e147b6d9b280d04fe682b41ee48a078ce9ce5771a5d02637b6b6999b66cd. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GB96Z1100800.
Mercy (In The Style of Kanye West, Big Sean, Pusha T & 2 Chainz) - Single
Mercy (Remix) - Single (Kanye West, Big Sean, Pusha T, 2 Chainz, Tyga & Chris Brown Swerve Tribute)
Beatmart Recordings: Best of the Submissions Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a21873850b562ba7f4c2fdb0c82536f2d387f363647452615aaa76eb85f81d. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/USACX0700008.