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 0x86c511a4d8e1c5bec0f16f3c2c1bba9c9fd52dda9f71c91b94702cd7363d3de6. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4502eb4-33ea-4b74-b6f0-eac226e6954a.json and https://artists.proofprofile.net/proofs/artist/c4502eb4-33ea-4b74-b6f0-eac226e6954a.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 0x5c4bcb8875714f3c7919f56964591438e781656ae3787f8bcddf9472f78be739. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZK6Q2526719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8d562dcb7fb89b7135c95a851cd7319a5058db04839a41c9e72d4c2a0f0912. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/QZK6N2545142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf85b7d2b7c412f04bb7cf100dc8890b08a9e44fa10e2ab19d3c3013ee50780d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZK6N2547142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963e88c19b194fd045610804158f0fdd441a253faabcb711c1639f5866659dfc. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZK6N2599153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce1c76ac38b90dd6efbc7fdcbaa619407597a438b7ac52dd46ac0623bfdaccd. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/QZK6M2590326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d05c9a5f6cd40795a7124acaf76dbd72635065e0ee9d124664626c7fb2efa66. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZK6M2526750.
PATHS OF SERENITY. TANTRIC SONG, CALMING MUSIC, ZEN MEDITATION, NATURE SOUNDS, RELAXING MUSIC.
IN THE GARDEN OF CALM. TANTRIC SONG, CALMING MUSIC, ZEN MEDITATION, NATURE SOUNDS, RELAXING MUSIC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bef4a3ad986191f3708839e6f4ca2043d827f1bcd3c60646a82d17955d5a377. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QZK6J2545282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e3e566db18811edec0704331061126710a996915e34fcd0dce21932405d29f. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZK6J2571708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba3863fec89c5b541ab5d1ec1ac603d2dee5150e548fc435bc4243cf9737273. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZK6H2519641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc749f2802fe96639ab759345fa9c857dac720c1c1f9d86af3b20165e525b6fb1. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZK6H2521685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5bc223002123ca6c478df98e36a16d600fc531da35fc7be0225d0f7cefcd979. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/QZK6G2513689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb062653a9f1a41ab2541307ea4c091769f0609a8010e37f9b49040f566b53b. 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/QZK6G2582211.
Tenore_ Cammino sul sentiero dove sbocci
私はあなたがいなくて寂しいです
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da5557a25c8153d064305fdd21e41938c6c2d08e41ee221396a7883171b910b. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZNWT2587286.
別れを告げるのはどれほど悲しかったことか