Trainer may refer to: Entertainment Trainer (album), an album released by Plaid in 2000 Trainer (TV series), a British TV series The Trainer, a 2009 British play written by David Wilson and Anne Aylo
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 0x83530f93dee847d148845a40618aa7e6c474ce2488201d80e63151102e9fda7b. 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/5c3e1a1a-5701-45bb-9413-7e72a94d586f.json and https://artists.proofprofile.net/proofs/artist/5c3e1a1a-5701-45bb-9413-7e72a94d586f.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 0xd93f071a0ce2f7797615c3878be59ecef458f5cf99513e804cf9c0b042e3db9b. 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/USLD91745910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29dcb1bb6bb0faf84ec2c90c366cca89cc4ed44ffad61e71593fc812a19d38d. 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/USLD91743694.
Baile Del Hindú (feat. Trainer & Big Soto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf56fe89a64edbfe2a65abe72294667f39f8b708900a4c2129e6004262bc88c. 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/TCADK1710611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea729a3826708284f08f7d7fba0d483ecd47fb15f7a90cdc3775d9b5b8f7680c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QM6N22262007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a881216d3e64ff5fc0b7afbad2775e35e9ad0ec756b507cb9e9e028dadd59e. 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/ESA092210838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c053c67eb04f69aa501ab21702fb0d8605793d6cba8e15cb8930184704600e5. 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/QMBZ91962194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b627fdab6b7bf48280556d8dc91f8158dae92c5768f2363edb4c6d882dea8a1. 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/MXE672000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485e6448599484fe2ee24c95959cf06f1ae3a29f150761cb1608405da961bf4e. 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/MXE672000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933adef5dbf16d40e3c5278c004c408bb6b413c9cbcf3981d5f11042bcea5d64. 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/QM6MZ2058635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a18c0e346ee43c0b388dc75f2c25a06abbaddeea2885e8130f53c1b61b3497a. 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/ZZOPM2232158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae32f448f147773870572c33b7fa60e4ec2d43717d967db7cd308a73245e902. 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/TCAHA2388559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7449fb72877a8ff56578d5e12e61725361971228975d08a81a0d74a755754d08. 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/MXF152000521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c20bbda10a2a3dea9e32af15281efd409feeefb2ff2013abe4fcb8a143fe827. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:41:57Z), 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/FR96X2139633.