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 0x64852013485eb3411eb80396c51d918ed4ee38bff884cea58cd13fb1c0549361. 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/4a456707-44ba-43b3-80d5-ebec21df367d.json and https://artists.proofprofile.net/proofs/artist/4a456707-44ba-43b3-80d5-ebec21df367d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Musicoterapia Canina - Musica Rilassante per Cani
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 0xa902ff973cabca4656d40538412d37775501ea0c656c43fa762548d0cf76d431. 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/ITLU51865073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df02cc46943b1ce4a4a9ce5a648712e053e3c24c29cb88bf0141ee97edd1bf3. 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/ITLU51865083.
Musica rilassante per gatti: Musica di sottofondo per rilassare i tuoi animali domestici
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9b3dc5d357deddc501323d45431277c4871a4b8b6b9bbeb952a05ae9c18e62. 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/ITO101890754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86379839d618ded1a164342c9cf0aab8b1f6ffad0ca3f0feeae466722b215457. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:43:14Z), 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/ITO101890755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0ca079b1dfe532d57e165bd580c532ab96c29a645c33687bb2662339e074fd. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/ITO101890757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e4b69237b379d4031c82f9835ac0a8157c2a6beb9d1c441bb942bb71752336. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:27:59Z), 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/ITO101890758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0da7e8993dd9ec3e64c6ba37903e423e9d9fb73610045017bb3854818220400. 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/ITO101890759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d6a6b72e5e936d891f61c96591cb084c8843a18a423ab7cf899cf1b0949fce. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:05:33Z), 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/ITO101890763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21760f4c7173d60ff319bd8753e6d53b35e2416f996e5638f42cba30b7487bf. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/ITO101890765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5ecc899128ac9d90976bf52d901a111cdc0a809a04a670e646d1c95a20b0b3. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/ITO101890767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3266d6ab6248dd7c96a02afcf5c47e93cfb1c6c3e32103a9a06581ee8c536ef. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/ITO101890770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c70bd8b60f89ded20117fff65edcf2e34e57588caa7602f4ca16b61e62a74c. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/ITO101890771.
Rilassante per gatti - Musica antistress per dormire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775dbad97c4d7e67c4782b1f2d07e8b693264ac3aad0f9e15c39448ef1d671c3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ITLU52056826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643b3cf87cb482a7d3ad40e9adb3dc9630846ff7cddc96384aa32b5c5d4178b6. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/ITLU52056830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d15f4a0d92803a290c6bb267cf1726691c6b2b7c6ad302fa3b66be060f6ef7. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/ITLU52056839.
Musica per Gatti 2021 - Liberare Serotonina & Endorfine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0eaf2a564ca7c94c0dcf0d6a5484f95f4f30f234ab5418bced10d52e2950a8. 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/ITLU52078628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32054bc8976e609ea6f7f25b3c037d175d6511ffd51bd66f59ac02212e6d372e. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/ITLU52078633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf392c34c2e109721fd17fcdd7e904cf51323bd82936627a321c672f0456f2af6. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/ITLU52078641.
Musica rilassante per negozio di animali
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0d4fc0a618cd3157e79ae7e0568746a9c5ee47c0e30026e08d78bf0eaf8d74. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/ITLU52080620.
Musica per migliorare l'animo del tuo gatto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932c8eb84dfba08898484d1e9f94fc86bf3fca3603b42ff990d6a2857b8bcaed. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/ITLU52083718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e2327b3d334135bf922c7311e6c342075dfe4bbcb731927a2e1af49ff4445d. 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/ITLU52083719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefdcf36771cca03a6c94683b6e217ad08856b1c317358cb1e5af55318b6e2850. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ITLU52097066.
Amici Pelosi: Musica per Rilassare gli Animali Domestici
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Sogno Felino: Musica Dolce e Rilassante per il Sonno Riposante del tuo Gatto
Serenità Animale: Suoni Calmanti per il Benessere di Cani e Gatti