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 0xf97541367d0b9fa9b9a712dd164546b4c765505f2652329612bb4685ec952c8d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5c1415e2-5c85-4270-960b-9ecd2a3c7129.json and https://artists.proofprofile.net/proofs/artist/5c1415e2-5c85-4270-960b-9ecd2a3c7129.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 0xe287dded3f600ded9c1d0d76a446390f101951ca5b4b2ce2ae51fd87f4ad7720. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:17:39Z), 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/FRX872173559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1926b03da9557453dfe11c19ced9efe93f231cf40bffa2bfd6bc24ecc674b03. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:35:04Z), 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/INK492200201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6320ee37b7bdce3793730400025c6c6e7aaac5e21165785c31e3420addc48fa9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/INS182402496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee0efe8b5f6ce683cbdca3f2d3ab8baef6542761bd29b9ec50736add1719288. 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/INS182303018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4402a08d3ba5c53ec5d08b9b5ec7c7577cbcc1122e626a63df87da5d62ab17ad. 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/INS182303470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed0fb9ac7c3e702795f23f77ed9d6b9e4d62ae4fb6010cc200f58ea6ce298b4. 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/INS182303408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c4a188d218b6ad8ce70410b302270cde4e27316f3510001c41640cfee1ea33. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/INS182303289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ade653ff5249dcc316d716b5d18331d86836d8a3bd6cf807d26e90165b76497. 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/INS182303239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c1f3650d2f98fd79501400c919c068c91a62de58341cc967e651c77c7d803c. 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/INS182303177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a1f91808280555b9763ab511f44c987f1e81c2f376d1ad06d97af1c9ea5a3d. 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/INS182303739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e103488b5378b02bec57e938755fe2df3fbb3e2298fd8905bd2c49d0945695. 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/INS182303740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d50b2f1e9a2930000879e13d4826e7d0ea2434d63f79fe28d6fda1598df88a9. 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/INS182303667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66795b1a9e88eb4cdb312733d1e0b6cdcd08b262d168001bc47947d064b4955b. 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/INS182303553.
Drop The Beat (From "Mtv Hustle 03 Represent Episode 4")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4083f2bfa82afe2469f2a475c8bd920c29514f6c4c75a4beff16082cb7f650be. 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/INS182303210.
Drop The Beat Fun Roast (From "Mtv Hustle 03 Represent Episode 20")
Drop The Beat Fun Roast (From "MTV Hustle 03 Represent Episode 20")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c53353c8d826da20c031e948f887c4f584cc3bd69350a587c0a71908980ab4. 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/INS182303742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066a02aaa6d5a4967aac5c8dbc510a21bd39b479992768ba7cfcb1162b4dc5aa. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/INE182326110.
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