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 0xddb33c0f8d36aae9ece8b883bad3469c87e27ebbd5876c458ed2bbf89bf101cb. 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/91879b77-27ad-45d8-b00f-274de30eca12.json and https://artists.proofprofile.net/proofs/artist/91879b77-27ad-45d8-b00f-274de30eca12.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 0x2db021c394586400ecb9355ff8dbb7679a8391c31c88293d57401e52284d8896. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:03:06Z), 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/MXF360737914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbea6b1479629bea70d4acffd643ba6ebf8d0ac625d9729e050fe839abb7a4f6. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/MXF360737933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaabde22421d3767aa047d8b46fee93ae6ea8779443d9b4686510da48565b19cb. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/MXF360737920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5478abcbf9a5523aa08bcb2095ce71caa4790a6a07831fe73307eb91076f8c62. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/MXF360737934.
Melodías De Guitarra Tranquilas Para Mejorar La Concentración En Meditación
Melodías De Guitarra: Armonías Acogedoras Para Gatos
Guitarra Reconfortante: Música Relajante Para Mascotas
Flujo Armónico: Melodías Con Música De Guitarra
Relajación Para Gatos: Música De Guitarra Para Felinos
Armonía Para Compañeros: Música De Guitarra Para Mascotas
Cuerdas Armónicas: Música De Guitarra Para Todos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23130b36a7ec329f375148a6a621e921b2636a9493e7a2af0428b66f88a5e3a0. Chain 2 (Bitcoin): anchored in block 957249 (2026-07-09T02:31:37Z), 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/GBRKQ2585807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c213cbf8176f84949446908787b1fc4a2cebd16c6899cca3f149044cf0056a1. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBRKQ2585721.
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 0xe791549989efb1d6f3fa1ab8603fd5f1e9ea9df07071adb329ebad1d61170a0f. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBRKQ2585729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1c183396e0d9412373c073a74b960df181bab4cd565f8f3fcad2c523bc3c60. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/GBRKQ2585735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031477aef4865de4bbea899600c8738e1f59cbd94d6b7786f64b27617aa23d33. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBRKQ2585742.
Momentos Relajantes: Música De Guitarra Para Mascotas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a34abd73ae88ac70c3260e58863402ad1a13972634a036d44096f6b4364f6f0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBRKQ2587723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464203edce10ebcadb255ac4e76fb51e221bbae5a86c7b23d72ceb0a9b453b10. 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/GBRKQ2587738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10255b7507faaa55ab6c6f51688afb756f19a3ae3b885b6cd802a3232d045edb. 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/GBRKQ2587781.